Find the volume of the cylinder. Round your answer to the nearest hundredth.
5 ft
8 ft
The volume is about cubic feet.

Find The Volume Of The Cylinder. Round Your Answer To The Nearest Hundredth.5 Ft8 FtThe Volume Is About

Answers

Answer 1

The volume of the cylinder is about 628.32 cubic feet.

To find the volume of a cylinder, we use the formula

V = π[tex]r^2[/tex]h

where V represents the volume, r represents the radius of the base, and h represents the height of the cylinder.
In this case, we are given that the radius is 5 ft and the height is 8 ft. So, we can substitute these values into the formula:
V = π(5)2(8)
V = 100π(8)
V ≈  628.318 cubic feet
Rounding this to the nearest hundredth, we get:
V ≈ 628.318

≈ 628.32 cubic feet
Therefore, the volume of the cylinder is approximately 628.32 cubic feet.
It's important to note that when working with units of measurement, we need to make sure they are consistent throughout our calculations.

In this case, the radius and height were given in feet, so our answer for volume is in cubic feet.

Also, when rounding, we follow standard rules for significant figures to ensure our answer is as precise as possible.
In conclusion, we can use the formula V = π[tex]r^2[/tex]h to find the volume of a cylinder.

Given the radius of 5 ft and height of 8 ft, we calculated the volume to be approximately 628.32 cubic feet.

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Related Questions

Hello! Can someone explain how to do this? Due tonight hurry asap

Answers

9.172 cm² is the area of the unshaded reason.

It is given that,

From the general formula of the area of the arc of the circle,

Area of the arc = (θ/360) x πr²

where A is the area of the arc, θ is the central angle of the arc (in degrees), and r is the radius of the circle.

The area of the shaded part is given = 56.87 cm²

Angle of the shaded arc = 360-50 = 310

So,

310/360* πr² = 56.87

πr²/360 = 56.87/310

For the 50° part,

Area of the unshaded part = 50/360* πr²

From the above value of the  πr²/360,

Area of the unshaded part = 50*56.87/310

Area of the unshaded part = 9.172 cm²

Therefore, the area of the unshaded reason is 9.172 cm².

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what is the tension in the horizontal cable, in newtons, if the mass of the beam is 43 kg, the length of the beam is 9 m, and the angle is 33°?

Answers

The tension in the horizontal cable can be calculated using the following formula:

Tension = (Mass x Gravity) / sin(angle)

Where:
- Mass = 43 kg
- Gravity = 9.8 m/s²(standard acceleration due to gravity)
- Angle = 33 degrees

Substituting the values in the formula, we get:

Tension = (43 x 9.8) / sin(33)
Tension = 461.8 / 0.5446
Tension = 848.3 newtons

Therefore, the tension in the horizontal cable is 848.3 newtons. The tension in the cable is directly proportional to the weight of the beam and the angle of the cable. As the weight of the beam is 43 kg and the angle is 33 degrees, we can use the formula to calculate the tension in the cable. The tension helps to hold the beam in place and prevent it from falling down.

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The tension in the horizontal cable is 804.8 newtons. To calculate the tension in the horizontal cable, we need to use trigonometry and the equation for tension:


1. Calculate the weight of the beam (W) using the formula W = mass × gravity. For this problem, mass = 43 kg and gravity = 9.81 m/s². Therefore, W = 43 kg × 9.81 m/s² = 421.83 N.
2. Find the torque created by the weight of the beam. Torque (T) is the product of the force and the distance from the pivot point (T = force × distance). In this case, the distance from the pivot point is half the length of the beam (9 m / 2 = 4.5 m). So, T = 421.83 N × 4.5 m = 1898.235 Nm.


Horizontal force = force of gravity x cos(angle)
Horizontal force = 421.4 N x cos(33°)
Horizontal force = 349.1 N
Finally, we can calculate the tension in the horizontal cable using the equation for tension:
Tension = (mass of beam x acceleration due to gravity) / sin(angle)
Tension = (43 kg x 9.8 m/s^2) / sin(33°)
Tension = 804.8 N

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suppose that the length of a confidence interval is 0.06 when the sample size is 400. determine how the sample size must change to decrease the length of the confidence interval to 0.03.

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The way that the sample size would have to change to decrease the length of the confidence interval is to increase from 400 to 1600.

Why should the sample size change ?

The confidence interval's length is directly proportional to the sample size. The specific relationship between these two factors follows an inverse proportion that correlates to the square root of the sample size.

One could represent this correlation through a proportionality statement: the larger the sample size, the smaller the confidence interval's length becomes.

Given that L1 = 0. 06 and n1 = 400, we want to find n2 such that L 2 = 0. 03:

L1 / L2 = √(n 2 / n 1)

The values would then be:

L1 / L2 = √ ( n2 / n1 )

0.06 / 0.03 = √ ( n2 / 400)

2 = √ (n2 / 400)

2² = ( √ (n2 / 400))²

4 = n2 / 400

n2 = 4 x 400

n2 = 1600

In conclusion, the sample size needs to increase to 1, 600.

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find and classify the critical points of f(x, y) = x 2 − 2x y 2 − 4y 5.

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The critical points of the function f(x, y) = x^2 - 2xy^2 - 4y^5 can be found by setting the partial derivatives with respect to x and y equal to zero and solving for x and y. Taking the partial derivative with respect to x, we get 2x - 2y^2 = 0. Taking the partial derivative with respect to y, we get -4xy - 20y^4 = 0. Solving these equations simultaneously, we get two critical points: (0, 0) and (2, -1/2).

To classify the critical points, we need to use the second partial derivative test. Taking the second partial derivative with respect to x, we get 2. Taking the second partial derivative with respect to y, we get -8xy - 100y^3. At (0, 0), the second partial derivative with respect to y is zero, so we cannot use the second partial derivative test. At (2, -1/2), the second partial derivative with respect to y is negative, so the critical point is a local maximum. Therefore, the critical points of f(x, y) = x^2 - 2xy^2 - 4y^5 are (0, 0) and (2, -1/2), with the critical point (2, -1/2) being a local maximum.

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Two thirds of a certain number plus five equals ten less than the same number, what is the number?

Answers

The calculated value of the number is -45

Calculating the value of the number?

From the question, we have the following parameters that can be used in our computation:

Two thirds of a certain number Plus five Equals ten less than the same number

Represent the number with x

So, we have the following equation

2/3x + 5 = x - 10

Collect the like terms

This gives

2/3x - x = -10 - 5

When the like terms are evaluated, we have

1/3x = -15

So, we have

x = -45

Hence, the value of the number is -45

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what is the variance of the random variable x, where x is the number that comes up when a fair die is rolled?

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So the variance of x when  a fair die is rolled is 2.92.

A fair die has 6 equally likely outcomes, each with a probability of 1/6. Therefore, the mean of the random variable x (the number that comes up when the die is rolled) is:

E(x) = (1+2+3+4+5+6)/6 = 3.5


To find the variance of x, we use the formula:


Var(x) = E(x^2) - [E(x)]^2


where E(x^2) is the expected value of the squared random variable x. Since each outcome of the die has an equal probability of 1/6, we have:

E(x^2) = (1^2 + 2^2 + 3^2 + 4^2 + 5^2 + 6^2)/6 = 15.17

Therefore, the variance of x is:

Var(x) = E(x^2) - [E(x)]^2 = 15.17 - (3.5)^2 = 2.92

So the variance of x is 2.92.

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find the exact value of sin(u v) given that sinu= 3/5 and cosv=-24/25

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The exact value of sin(uv) is -44/125. We can use the trigonometric identity sin(uv) = sinucosv - cosusinv to find the value of sin(uv), given sinu and cosv.

From the given information, we have sinu = 3/5 and cosv = -24/25. We can find cosu using the Pythagorean identity:

cos^2 u + sin^2 u = 1

cos^2 u = 1 - sin^2 u = 1 - (3/5)^2 = 16/25

Taking the square root of both sides, we get cos u = ±4/5. However, since sinu is positive, we can conclude that cosu is also positive, and so cosu = 4/5.

Now we can use the sin(uv) identity to find:

sin(uv) = sinucosv - cosusinv

= (3/5)(-24/25) - (4/5)sinv (substituting the given values)

= -72/125 - (4/5)sinv

To find sinv, we can use the Pythagorean identity:

sin^2 v + cos^2 v = 1

sin^2 v = 1 - cos^2 v = 1 - (-24/25)^2 = 49/625

Taking the square root of both sides, we get sinv = ±7/25. However, since cosv is negative, we can conclude that sinv is also negative, and so sinv = -7/25.

Substituting sinv into the expression we found for sin(uv), we get:

sin(uv) = -72/125 - (4/5)(-7/25) = -72/125 + 28/125

= -44/125

Therefore, the exact value of sin(uv) is -44/125.

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classify a triangle with side lengths of 6, 7, and sqaured root of 5

Answers

Answer:

Obtuse, scalene

Step-by-step explanation:

No same values for sides. So, scalene. Since 7^2 > 6^2 + sqrt5 ^2 , this triangle is obtuse.

an urn contains one red and one black ball. each time, a ball is drawn independently at random from the urn, and then returned to the urn along with another ball of the same color. for example, if the first ball drawn is red, the urn will subsequently contain two red balls and one black ball. what is the probability of observing the sequence r,b,b,r,r?

Answers

The probability of observing the sequence r, b, b, r, r in the given scenario is 1/120.

To find the probability of observing the sequence r, b, b, r, r in the given scenario, we can break it down step by step:

Probability of drawing the first ball as red (r):

Since the urn initially contains one red and one black ball, the probability of drawing a red ball is 1/2.

Probability of drawing the second ball as black (b) after the first ball was red:

After drawing the first red ball, it is returned to the urn along with another red ball, so the urn now contains two red balls and one black ball.

The probability of drawing a black ball is 1/3.

Probability of drawing the third ball as black (b) after the previous sequence was r, b:

After drawing the second black ball, it is returned to the urn along with another black ball, so the urn now contains two red balls and two black balls.

The probability of drawing a black ball is now 2/4 = 1/2.

Probability of drawing the fourth ball as red (r) after the previous sequence was r, b, b:

After drawing the third black ball, it is returned to the urn along with another black ball, so the urn still contains two red balls and two black balls.

The probability of drawing a red ball is 2/4 = 1/2.

Probability of drawing the fifth ball as red (r) after the previous sequence was r, b, b, r:

After drawing the fourth red ball, it is returned to the urn along with another red ball, so the urn now contains three red balls and two black balls.

The probability of drawing a red ball is 3/5.

To find the overall probability of observing the sequence r, b, b, r, r, we multiply the probabilities of each individual step:

[tex]P(r, b, b, r, r) = (1/2) \times (1/3) \times (1/2) \times (1/2) \times (3/5)[/tex]

= 1/120.

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how many n digit ternary sequences are there in which at least one pair of consecutive digits are the same

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To solve this problem, we can use the principle of inclusion-exclusion.
First, let's consider the total number of n digit ternary sequences. For each digit, we have 3 choices (0, 1, or 2), so the total number of n digit ternary sequences is 3^n.

Next, let's consider the number of n-digit ternary sequences in which no pair of consecutive digits are the same. To construct such a sequence, we can start with any digit (3 choices), and then for each subsequent digit, we must choose a different digit than the previous one (2 choices). Therefore, the number of n digit ternary sequences in which no pair of consecutive digits are the same is 3 x 2^(n-1).

Finally, to find the number of n digit ternary sequences in which at least one pair of consecutive digits are the same, we can use the principle of inclusion-exclusion. We want to subtract the number of n digit ternary sequences in which no pairs of consecutive digits are the same from the total number of n digit ternary sequences. However, if we simply subtract these two values, we will have double-counted the sequences in which there are two (or more) pairs of consecutive digits that are the same. So we need to add back in the number of sequences in which there are two (or more) pairs of consecutive digits that are the same, and so on.

The formula for the number of n digit ternary sequences in which at least one pair of consecutive digits are the same is:

3^n - 3 x 2^(n-1) + 3 x 2^(n-2) - 3 x 2^(n-3) + ... + (-1)^(n-1) x 3

So, for example, if n = 4, the number of n digit ternary sequences in which at least one pair of consecutive digits are the same is:

3^4 - 3 x 2^(4-1) + 3 x 2^(4-2) - 3 x 2^(4-3) = 81 - 24 + 12 - 6 = 63.

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Christina took out a loan of $98,500 at an interest rate of 12.6% compounded monthly. She paid off the loan in full over the course of exactly sixteen years. Assuming that Christina made the same payment every month for sixteen years, what was her monthly payment?

O $829.52
O $1,195.10
O $1,120.50
O $1.275.03

Answers

I think the answer is 1,195.10

kiran has a sock drawer that has $7$ different pairs of matching socks. every day for a week, he pulls out two socks at random (without replacement). what is the expected number of days that kiran wears matching socks?

Answers

The expected number of days that Kiran wears matching socks is equal to approximately 1.928 days.

To find the expected number of days that Kiran wears matching socks,

Calculate the probability of wearing matching socks on each day and sum up these probabilities.

Let us consider each day of the week separately.

On the first day, Kiran randomly selects two socks.

The probability of wearing matching socks on the first day is 1, as there is no other pair of socks chosen yet.

On the second day, there are 12 socks remaining in the drawer 2 socks from the first day and 10 remaining pairs.

Kiran selects two socks again, and the probability of wearing matching socks on the second day is 1/11,

As there is only one pair of matching socks among the remaining 11 socks.

Similarly, on the third day, the probability of wearing matching socks is 1/9.

On the fourth day is 1/7, on the fifth day is 1/5, on the sixth day is 1/3, and on the seventh day is 1/1.

Now, let us calculate the expected number of days that Kiran wears matching socks,

E = (1 × 1) + (1/11 × 1) + (1/9 × 1) + (1/7 × 1) + (1/5 × 1) + (1/3 × 1) + (1/1 × 1)

  = 1 + 1/11 + 1/9 + 1/7 + 1/5 + 1/3 + 1/1

  ≈ 1.928

Therefore, the expected number of days that Kiran wears matching socks over the course of the week is approximately 1.928 days.

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Let X denote the subset (-1, 1) 0 of R²?, and let U be the open ball B(0:1) in R², which contains X. Show there is no € > 0 such that the E-neighborhood of X in R" is contained in U.

Answers

To show that there is no € > 0 such that the E-neighborhood of X in R" is contained in U, we first need to understand what the E-neighborhood of X in R" means. There is no ε > 0 such that the ε-neighborhood of X in R² is contained in U.

The E-neighborhood of X in R" is the set of all points in R" that are within a certain distance E of X. In other words, it is the set of all points that are within E units of distance from any point in X.

Now, we know that X is a subset of (-1, 1) x 0 in R², which means that X consists of all points that lie between the interval (-1, 1) on the x-axis and 0 on the y-axis. We also know that U is an open ball of radius 1 centered at the origin in R², which means that U consists of all points that are within a distance of 1 unit from the origin.

If we assume that there is some € > 0 such that the E-neighborhood of X in R" is contained in U, then we can choose a point in X that is on the x-axis and is at a distance of E units from the origin. Let's call this point A.

Since A is in X, it lies between the interval (-1, 1) on the x-axis and 0 on the y-axis. However, since A is at a distance of E units from the origin, it must lie outside the open ball U of radius 1 centered at the origin.

This contradicts our assumption that the E-neighborhood of X in R" is contained in U. Therefore, there is no € > 0 such that the E-neighborhood of X in R" is contained in U.


To show there is no ε > 0 such that the ε-neighborhood of X in R² is contained in U, consider the following:

Let X denote the subset (-1, 1) x 0 of R², and let U be the open ball B(0, 1) in R², which contains X. Now, let's assume there exists an ε > 0 such that the ε-neighborhood of X is contained in U. This would mean that every point in X has a distance of less than ε to some point in U.

However, consider the point (-1, 0) in X. Since U is the open ball B(0, 1), the distance from (-1, 0) to the center of U, which is the point (0, 0), is equal to 1. Any ε-neighborhood of (-1, 0) in R² would have to include points that are further than 1 unit away from the center of U. This contradicts the assumption that the ε-neighborhood of X is contained in U.

Thus, there is no ε > 0 such that the ε-neighborhood of X in R² is contained in U.

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integral (0,5) 3/2 x-6 can be interpreted as the area of a triangle above the x-axis minus the area of the triangle below the x-axis. The area of the lower triangle is 1/2 bh = and the area of the upper triangle is

Answers

Therefore, the integral (0,5) 3/2 x-6 can be interpreted as the area of the upper triangle minus the area of the lower triangle, which is (-3.75) - (-15) = 11.25.

The integral (0,5) 3/2 x-6 represents the area under the curve of the function 3/2 x-6 from x=0 to x=5. This area can be split into two triangles, one above the x-axis and one below it. The area of the lower triangle is given by 1/2 base x height, where the base is 5-0=5 and the height is the value of the function at x=0, which is -6. So the area of the lower triangle is 1/2 (5)(-6) = -15.

The area of the upper triangle is given by the same formula, where the base is still 5 but the height is now the value of the function at x=5, which is -3/2. So the area of the upper triangle is 1/2 (5)(-3/2) = -3.75.

Therefore, the integral (0,5) 3/2 x-6 can be interpreted as the area of the upper triangle minus the area of the lower triangle, which is (-3.75) - (-15) = 11.25.

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The perimeter of a semicircle is 30.84 meters. What is the semicircle's radius?

Answers

Answer:

radius is 6 meters

Step-by-step explanation:

perimeter of semicircle = πr + 2r

πr + 2r = 30.84

3.14r + 2r = 30.84

5.14r = 30.84

r = 30.84 ÷ 5.14

r = 6

Weekly CPU time used by an accounting firm has a probability density function (measured in hours) given by:f(y)={(3/64)y^2 * (y-4) 0 <= y <= 4={0 elsewhereA) Find the E(Y) and V(Y)B) The CPU time costs the firm $200 per hour. Find E(Y) and V(Y) of the weekly cost for CPU time. C) Would you expect the weekly cost to exceed $600 very often? Why?I'm good on part A, but am having a difficult time with B and C

Answers

The weekly CPU time used by the firm is described by a probability density function, and we can use this function to find the expected value and variance of the CPU time used. Furthermore, we can use these values to find the expected value and variance of the weekly cost for CPU time.

Expected Value and Variance are statistical measures that help us understand the central tendency and variability of a random variable, respectively. The expected value of a random variable is its average value, while the variance is a measure of how spread out the values are around the mean.

A) To find the expected value and variance of the CPU time used, we can use the following formulas:

Expected Value (E(Y)) = ∫ y*f(y) dy, where f(y) is the probability density function

Variance (V(Y)) = E(Y²) - (E(Y))²

For the given probability density function,

f(y) = {(3/64)y²* (y-4) 0 ≤ y ≤ 4},

we can substitute this into the above formulas and integrate from 0 to 4 to get:

E(Y) = ∫ yf(y) dy = ∫ y(3/64)y² * (y-4) dy = 3/4

V(Y) = E(Y²) - (E(Y))² = ∫ y²*f(y) dy - (3/4)² = 3/16

Therefore, the expected value of CPU time used per week is 0.75 hours, and the variance is 0.1875 hours².

B) To find the expected value and variance of the weekly cost for CPU time, we can use the fact that the CPU time costs the firm $200 per hour. Thus, the cost of CPU time per week can be represented as [tex]Y_{c}[/tex] = 200*Y, where Y is the CPU time used per week. Therefore,

E([tex]Y_{c}[/tex]) = E(200Y) = 200E(Y) = $150

V([tex]Y_{c}[/tex]) = V(200*Y) = (200²)*V(Y) = $7500

Hence, the expected weekly cost for CPU time is $150, and the variance is $7500.

C) To determine whether the weekly cost would exceed $600 very often, we can use Chebyshev's inequality, which tells us that for any random variable, the probability that its value deviates from the expected value by more than k standard deviations is at most 1/k². In other words, the probability of an extreme event decreases rapidly as we move away from the mean.

Using this inequality, we can say that the probability of the weekly cost exceeding $600 by more than k standard deviations is at most 1/k². For example, if we want the probability to be at most 0.01 (1%), we can choose k = 10. Thus, the probability that the weekly cost exceeds $600 by more than 10 standard deviations is at most 1/10² = 0.01, or 1%.

Therefore, we can conclude that it is unlikely for the weekly cost to exceed $600 very often, given the probability density function and the expected value and variance of the weekly cost that we have calculated.

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Complete Question

Weekly CPU time used by an accounting firm has a probability density function (measured in hours) given by: f(y)={(3/64)y^2 * (y-4) 0 <= y <= 4={0 elsewhere

A) Find the E(Y) and V(Y)

B) The CPU time costs the firm $200 per hour. Find E(Y) and V(Y) of the weekly cost for CPU time.

C) Would you expect the weekly cost to exceed $600 very often? Why?

What is the value of x
6
6sq root 3
12
12 sq root 3

Answers

Answer:

[tex]6\sqrt{3}[/tex]

Step-by-step explanation:

In a 30-60-90 triangle, the side opposite to the right angle is [tex]2x[/tex] , the side opposite to the 30 degrees is x and the side opposite to the 60 degrees is [tex]x\sqrt3[/tex]. Since 12 is on the side with [tex]2x[/tex], we can use reasoning to deduce that the unknown side is [tex]6\sqrt3[/tex].

What is the value of x? Enter your answer as a simplified fraction.

3/5x – 1/3x = x – 1

Answers

3/5x – 1/3x = x – 1

LCM of 5 and 3 = 15, so
3/5x turns into 9/15x
and -1/3x turns into -5/15x

9/15x - 5/15x = x - 1
4/15x = x - 1
Multiply both sides by 15
4x = 15x - 15
15 = 11x
Divide both sides by 11
15/11 = x

x = 15/11

Have a good day ^^

10. 39 the bitwise operators can be used to manipulate the bits of variables of type __________. A) float b) double c) long d) long double

Answers

The bitwise operators can be used to manipulate the bits of variables of long type.

What are operators?

Operators are language-defined structures used in computer programming that operate broadly like functions but have syntactic or semantic differences. Logic operations, comparison, and arithmetic are a few instances of common elementary examples.

Here, we have

The bitwise operators can be used to manipulate the bits of variables of type.

Consider the right shift operation for float or double.

Float and double are represented using IEEE 754 Floating point representation.

This is IEEE-754 32-bit Single-Precision Floating-Point Number Representation.

In this representation, the first bit is the sign bit.

The sign bit indicates whether the number is positive or negative.

If the sign bit is 1, the number is positive and if it is 0, the number is negative.

If we apply the right shift, the sign bit is pushed into the exponent and the least significant bit is pushed into the fraction.

For a right shift, generally, the empty bit is replaced by 0.

If the sign bit before shifting was 1, means the number was positive.

On shifting it becomes negative. This makes the interpretation complicated.

That is the reason bitwise operators are generally not allowed with float or double.

Therefore,

The bitwise operators can be used to manipulate the bits of variables of long type.

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If you folded a 90 degree angle in thirds how many degrees is this angle?

Answers

Answer:

30°

Step-by-step explanation:

If you folded a 90 degree angle in thirds how many degrees is this angle?

folding in thirds the value is 1/3 of 90, therefore 90 : 3 = 30°

HELP ME PLEASE
A random sample of 50 purchases from a particular pharmacy was taken. The type of item purchased was recorded, and a table of the data was created.


Item Purchased Health & Medicine Beauty Household Grocery
Number of Purchases 10 18 15 7


Which graphical representation would be best to display the data?
Box plot
Line plot
Histogram
Stem-and-leaf plot

Answers

A bar graph would be the best graphical representation to display the data. It is suitable for displaying categorical data and allows for easy comparison between different categories.

In this case, the categories are the different types of items purchased (Health & Medicine, Beauty, Household, Grocery), and the number of purchases in each category is represented by the height of the bars.

A histogram would be the best graphical representation to display the data of a random sample of 50 purchases from a particular pharmacy, where the type of item purchased was recorded, and a table of the data was created.

The data includes the number of purchases for each item category: health & medicine, beauty, household, and grocery.

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HELP MEEEEEEEE PLEASE

Answers

The given slope -4/3 is equal the slope with coordinates (-1, 6) and (-4, 10). Therefore, option A is the correct answer.

The given slope is -4/3.

A) (-1, 6) and (-4, 10)

Here, slope = (10-6)/(-4+1)

= 4/(-3)

= -4/3

B) (6, -1) and (-4, 10)

Slope = (10+1)/(-4-6)

= -11/10

C) (-1, 6) and (10, -4)

Slope = (-4-6)/(10+1)

= -10/11

D) (6, -1) and (10, -4)

Slope = (-4+1)/(10-6)

= -3/4

Therefore, option A is the correct answer.

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Triangle STU has the following measures:
s=8.4, t=6.9, and m∠S=58 degrees. What is the length of side u?

Answers

The length of side u in triangle STU i s approximately 6.34 units.

Length calculation.

Triangle STU measures: s=8.4, t=6.9, and m∠S=58 degrees

In order to find the length u, we will use the law of cosines .

u² = s²+ t² -2stcos(m∠s)

where m∠s is the measure of angles in degrees.

u² = s²+ t² -2stcos(m∠s)

u² =8.4² +6.9² -2(8.4*6.9cos 58

u² = 118.17 -77.95

u² = 40.22

Taking the square root both sides, we get.

u = 6.34

Therefore, the length of side u in triangle STU i s approximately 6.34 units.

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Answer:

  u ≈ 9.7 units

Step-by-step explanation:

You want side u in triangle STU with s = 8.4, t = 6.9 and S = 58°.

Law of sines

We are given two sides and the angle opposite the larger of them. This means the triangle can be solved using the law of sines, and there will be one solution.

  s/sin(S) = t/sin(T) = u/sin(U)

Angles

With the given values, we can find angle T to be ...

  T = arcsin(t/s·sin(S))

  T = arcsin(6.9/8.4·sin(58°)) ≈ 44.156°

Then angle U will be ...

  180° -58° -44.156° = 77.844°

Side

Using the same law of sines relation, we find side u to be ...

  u = s·sin(U)/sin(S)

  u = 8.4·sin(77.844°)/sin(58°) ≈ 9.683

The length of side u is about 9.7 units.

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if x and y are independent and the joint probability p(x = 1,y = 2) = 0.06, what is p(y = 4)?

Answers

Thus, the joint probability of x=1 and y=2 is used to calculate the probability of y=4 is 0.06.

To calculate the probability of y = 4, we need to use the fact that x and y are independent. This means that the probability of y taking a certain value is not affected by the value of x.

Therefore, we can use the marginal probability of y, which is the sum of the joint probabilities of all possible values of y.

Let's start by finding the marginal probability of y. We can do this by summing the joint probabilities of y taking all possible values:

p(y=1) = p(x=0, y=1) + p(x=1, y=1) + p(x=2, y=1) = 0 + 0.12 + 0 = 0.12
p(y=2) = p(x=0, y=2) + p(x=1, y=2) + p(x=2, y=2) = 0.06 + 0 + 0.18 = 0.24
p(y=3) = p(x=0, y=3) + p(x=1, y=3) + p(x=2, y=3) = 0 + 0.12 + 0.36 = 0.48
p(y=4) = p(x=0, y=4) + p(x=1, y=4) + p(x=2, y=4) = 0 + p(x=1, y=2) + 0 = 0.06

Therefore, the probability of y=4 is 0.06.

In summary, the joint probability of x=1 and y=2 is used to calculate the probability of y=4, by using the fact that x and y are independent and finding the marginal probability of y.

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in a segmented bar plot, you'll divide each cell count by which total?

Answers

In a segmented bar plot, each cell count is typically divided by the total count of the corresponding category or group.

In a segmented bar plot, each cell count is divided by the total count of the corresponding category or group to represent the relative proportion or percentage of each segment within the category or group.

The purpose of a segmented bar plot is to visualize the distribution of different segments within a larger category or group. By dividing each cell count by the total count, we obtain proportions or percentages that allow for a meaningful comparison between the segments.

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what value is expected for the f-ratio, on average, if the null hypothesis is true in an anova? explain why. the numerator of the f-ratio measuresall differences between samples , and the denominator measuresonly random differences . if there is no treatment effect, differences between samples are due toonly random differences , so the numerator and denominator measurethe same sources of variability and should beabout equal and have a ratioclose to 1 .

Answers

If the null hypothesis is true in an ANOVA, the expected value for the F-ratio is close to 1. the F-ratio compares the variability due to treatment effects with the variability due to chance.

This is because the numerator of the F-ratio measures the variability between the sample means, which is expected to be small if the null hypothesis is true. On the other hand, the denominator measures the variability within the samples, which is expected to be larger due to random variation. Therefore, if there is no treatment effect, the numerator and denominator should be similar, resulting in an F-ratio close to 1.

In other words, the F-ratio compares the variability due to treatment effects with the variability due to chance. If the null hypothesis is true, there should be no systematic differences between the groups, and any differences observed are likely due to chance. Hence, the F-ratio should be close to 1, indicating that the treatment has no significant effect on the outcome.

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Two dice are rolled. What is the probability that at least one dice is showing a 2, given that the sum of the numbers on the dice is no more than 6?

Answers

The probability that at least one die is showing 2 and the sum of the two dice is 6 is 1/18

What is probability?

A probability is a number that reflects the chance or likelihood that a particular event will occur. The certainty of an event to occur is 1 and it equivalent to 100% in percentage.

Probability = sample space /total outcome

The possible total out come for rolling two dice is 36.

For two dice two have a sum of 6 and at least one must show 2, the result must either be 2,4 or 4,2. Therefore the sample space is 2

Therefore the probability of at least one die showing 2 and sum of 6 = 2/36 = 1/18

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find the solutions to the equation in the interval 0 ≤ ≤ . 2 cos(2) 1 = 0

Answers

The equation 2cos(2x) + 1 = 0 has no solutions in the interval [0, π/2].

We can start by rearranging the equation:

2cos(2x) = -1

cos(2x) = -1/2

Since the cosine function has a maximum value of 1 and a minimum value of -1, the equation cos(2x) = -1/2 has solutions in the interval [0, π/2] if and only if -1/2 is between -1 and 1/2. However, this is not the case, so the equation has no solutions in the given interval.

To see this more clearly, we can use the inverse cosine function (also known as arccosine) to find the angles whose cosine is -1/2. Using a calculator or a table, we find that the two angles in the interval [0, π] whose cosine is -1/2 are π/3 and 5π/3. Since π/3 is less than π/2 and 5π/3 is greater than π/2, neither of these angles is in the interval [0, π/2]. Therefore, the equation 2cos(2x) + 1 = 0 has no solutions in this interval.

In summary, the equation 2cos(2x) + 1 = 0 has no solutions in the interval [0, π/2] because the cosine of any angle in this interval is greater than or equal to -1/2, which is not a solution to the equation.

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Please help

Find AD length, AE length, BD length and EC length

Answers

The solution is: the required length is:

AE = 9 units

Explanation:

We know that the line joining two midpoints in a triangle is parallel to the third side and equals half its length

In the diagram, we are given that:

segment BD // segment AE and that segment BD is a mid-segment of the ΔACE

According the above theorem, we can conclude that:

BD = 0.5 × AE ......................> I

1- getting the length of BD:

Length of segment BD can be calculated using the distance formula:

Formula: distance= √(x_2-x_1)²+(y_2-y_1)²

We are given that:

B is at (3.5,1.5) which means that x₁ = 3.5 and y₁=1.5

D is at (-1,1.5) which means that x₂=-1 and y₂=1.5

Substitute in the formula:

BD = 4.5 units

2- getting the length of AE:

using equation I:

BD = 0.5 × AE

4.5 = 0.5 × AE

AE = 2 × 4.5

AE = 9 units

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complete question:

Find the length of AE if BD AE and BD is a midsegment of ACE

The required length is: AE = 9 units

We know that the line joining two midpoints in a triangle is parallel to the third side and equals half its length

In the diagram, we are given that:

segment BD // segment AE and that segment BD is a mid-segment of the ΔACE

According the above theorem, we can conclude that:

BD = 0.5 × AE ......................> I

1- getting the length of BD:

Length of segment BD can be calculated using the distance formula:

Formula: distance= √(x_2-x_1)²+(y_2-y_1)²

We are given that:

B is at (3.5,1.5) which means that x₁ = 3.5 and y₁=1.5

D is at (-1,1.5) which means that x₂=-1 and y₂=1.5

Substitute in the formula:

BD = 4.5 units

2- getting the length of AE:

using equation I:

BD = 0.5 × AE

4.5 = 0.5 × AE

AE = 2 × 4.5

AE = 9 units

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The question is incomplete complete question is given below

Find the length of AE if BD AE and BD is a midsegment of ACE

At a workplace 153 of the 225 employees attended a meeting which statement shows values that are all equivalent to the fraction of employees who attended the meeting

Answers

ANSWER

A 153/225 = 17/25 =0.68=68%

B 225/153 = 25/17 =1.47=147%

C 153/225 = 51/75 =0.51=51%

D 225/153 = 75/51 =0.75=75%

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