The smaller number, x from the inequality x + 2x + 6 < 50 is x < 14.67
Inequalityx + 2x + 6 < 50
3x + 6 < 50
collect like terms3x < 50 - 6
3x < 44
divide both sides by 3x < 44/3
x < 14.6666666666666
Approximately,
x < 14.67
Therefore, the smaller number, x is approximately x < 14.67
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Determine whether the following series converges or diverges using the integral test. Be sure to verify that the integral test can be applied.
By the integral test, the series is convergent.
The sequence [tex]k^3/e^{k^4}[/tex] is clearly positive and decreasing for [tex]k\in\Bbb N[/tex]; then by the integral test,
[tex]\displaystyle \int_1^\infty \frac{x^3}{e^{x^4}} \, dx \le \sum_{k=1}^\infty \frac{k^3}{e^{k^4}}[/tex]
and
[tex]\displaystyle \int_1^\infty \frac{x^3}{e^{x^4}} \, dx = \frac14 \int_1^\infty e^{-u}\, du = \frac1{4e} < \infty[/tex]
By using the integral test, series converges
What is an integral test for convergence and divergence?
⇒ It is used to prove the divergence or convergence of series. This test is called the integral test, which compares an infinite sum to an improper integral. It is important to note that this test can only be applied when we are considering a series whose terms are all positive.
How to know if a series is converging or diverging?
If the limit exists and is a finite number (a number less than infinity), we say the integral converges. If the limit is ±∞ or does not exist, we say the integral diverges.
let aₓ= f (x) is any function
⇒ In order for the integral test to work The function must be positive it has to be continuous and it has to be decreasing when x≥1
If the integral converges it means the series is also converging
If the integral diverges it means the series is also diverging
The sequence [tex]k^{3} /{e^{k^{4} }[/tex] is clearly positive and decreases for k∈N then by the integral test,
[tex]\int\limits^\infty_1 {x^{3} /e^{x^4} dx[/tex] [tex]\leq\displaystyle \sum^{\infty}_{k = 1} {x^{3} /e^{x^{4}[/tex]
and
[tex]\int\limits^\infty_1 {x^{3} /e^{x^4} dx[/tex][tex]=1/4\int\limits^\infty_1 {x^{3} /e^{-u} du[/tex]
⇒ [tex]1/4 < \infty[/tex]
So it comes with a finite value hence the series converges
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i need help with my algebra assignment
Answer:
[tex]Question 1\\1+i\\-1-i\\Question 2\\\\-1+i\\1-i[/tex]
Step-by-step explanation:
Complex Numbers:
Complex numbers can generally be expressed in the form: [tex]a+bi[/tex] where a and b are both real numbers, with the a part representing the real part of the complex number, and the bi representing the imaginary part.
We can also graph these numbers using the complex plane. The complex plane has the real axis where the x-axis would normally be, and the imaginary axis where the y-axis would normally be. So by this definition the "a" is what determines the horizontal position or the position on the real axis and the "b" is what determines the vertical position or the position on the imaginary axis.
I attached a diagram of the complex plane, and it's essentially the same as a normal graph, with a=x, and b=y.
Question 1:
So when a complex number lies above the real-axis, that means the imaginary part is greater than 0. When a complex numbers lies to the right of the imaginary axis, that means the real part is greater than 0.
This means we have the form: [tex]a+bi \text { where } a > 0 \text{ and } b > 0[/tex]. You can literally plug in any number for a and b, so long as it fits this. For example we can just do: [tex]1+i[/tex]
So when a complex number lies below the real-axis, that means the imaginary part is less than 0. when a complex numbers lies to the left of the imaginary axis, the real part is less than 0.
This means we have the form: [tex]a+bi \text { where } a < 0\text{ and }b < 0[/tex]. You can plug in any real number that lies within this restriction. An example would be:
[tex]-1-i[/tex]
Question 2:
Above real axis and to the left of the imaginary axis means: b>0 and a<0. So we can plug in any number into the standard form that fits this restriction. an example would be: [tex]-1+i[/tex]
Below real axis and to the right of the imaginary axis means: b<0 and a>0. So we can plug in any number into the standard form that fits this restriction. An example would be: [tex]1-i[/tex]
please help 20 points!!!!!
hree students want to estimate the mean backpack weight of their schoolmates. To do this, they each randomly chose 8 schoolmates and weighed their backpacks. The samples are shown in the table. (a)Fill in the sample means in the table. Do not round your answers. Sample Backpack weight (in pounds) Sample mean 1 3, 7, 8, 3, 7, 9, 6, 8 2 8, 6, 4, 7, 9, 4, 6, 7 3 9, 4, 5, 8, 7, 5, 9, 6
(b)Use the table to calculate the range of the sample means. Rangeofsamplemeans:
(c)The students are going to use the sample means to estimate the mean backpack weight of their schoolmates. Select all the true statements below.
A single sample mean will tend to be a worse estimate than the mean of the sample means.
The mean of the sample means will tend to be a worse estimate than a single sample mean.
The closer the range of the sample means is to 0, the less confident they can be in their estimate.
The farther the range of the sample means is from 0, the less confident they can be in their estimate.
Three students want to estimate the mean backpack weight of their schoolmates. To do this, they each randomly chose 8 schoolmates and weighed their backpacks. Then as per the given sample data,
(a) The sample means of the backpacks are: 6.375,6.375,6.625
(b) Range of sample means: 0.25
(c)The true statement is: The closer the range of the sample means is to 0, the less confident they can be in their estimate.
For the first sample, mean= 6.375
For the second sample, mean= 6.375
For the third sample, mean= 6.625
Range of sample means=Maximum Mean- Minimum Mean
= 6.625 - 6.375
= 0.25
The students will estimate the average backpack weight of their classmates using sample means, the true statement is:
The closer the range of the sample means is to 0, the more confident they can be in their estimate.
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Create the smallest cone possible with the tool, and record the values of the radius, height, and volume in terms of . Then scale the original CONE
by the given scale factors, and record the resulting volumes (in terms of 7), to verify that the formula V=V xk³ holds true for a cone.
The Created cone with the possible record of the the values of the radius, and height is given in the image attached.
How do yo create the volume of the smallest cone?A scale factor is known to be a number that is known to often multiplies (doubles or triples, etc.,“scales”) a given quantity.
Since the volume is not attached, it will be manually created here.
Note that the resulting volumes must be in terms of 7.
Hence:
Volume Formula: V=V x k³
When scale factor is 2, radius = 4, height = 8, then volume will be:
7π x 2³
= 56π
When scale factor is 3, radius = 6, height = 18, then volume will be:
7π x 3³
= 189π
When scale factor is 4, radius = 8, height = 24, then volume will be:
7π x 4³
= 448π
Hence the volume that will be fixed into the scale factor diagram will be:
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pls solve if u can <3 much appreciated
Step-by-step explanation:
that is only possible, if we don't need to use a 2 and a 5 (but especially the 2) to create the 1 in the middle (log(10) = log(2×5) or log (5×2) = 1).
in other words, if the 1 in the middle is just a given, and does not use any of our digits for is creation, then a solution is possible.
first of all, the upper left corner has to be log(0⁰). we cannot use the digit 0 for anything else. and 0^n (except for n = 0) is not a valid argument for a logarithm.
log(0⁰) = 0 log(2×1) = 0.3... log(9/4) = 0.35...
log(1×2) = 0.3... 1 log(3×6) = 1.26...
log(7/3) = 0.37... log(4×5) = 1.3... log(6⁹) = 7.0...
but as soon as we need to build the center 1 by log(10), which takes then away one of the 2s (as the only way to build 10 by multiplication is 2×5 or 5×2), there is no possible solution.
Answer:
Please see attachment.
Step-by-step explanation:
There are many possible solutions to this problem.
A few things to note:
[tex]\log_a1=0[/tex]The log of a number smaller than its base is less than 1.The log of a number larger than its base is more than 1.[tex]\log_a0\:\:\textsf{is und\;\!efined}[/tex]There are 8 red boxes and 8 blue boxes, so we do not have to use every digit from 0 to 9.
Place zero in the blue box in the top left of the grid, since any number raised to zero is 1 and [tex]\log_a1=0[/tex]. Leave the red box blank for the moment, and fill it with any number not used at the end.
The value of the product of the red and blue boxes in the top-middle and left-middle of the grid should be less than 10. It is advisable to place the lowest numbers in these boxes, i.e. 1 and 2.
The value of the product of the red and blue boxes in the bottom-middle and right-middle of the grid should be more than 10.
It is advisable to place some of the highest numbers in the bottom right corner of the grid, as this is the box with the greatest value.
Please see the attached image for one possible way of filling the grid. The actual values of the logarithms (to 3 decimal places) have been placed in the bottom right corners of each box of the grid for verification.
is the identity for addition for rational number a) 1 b) 0 c) -1 d) 1/2
The identity for addition for rational numbers is zero which is the option b.
Given addition of rational numbers.
We are required to find the identity for the addition of rational numbers.
Rational numbers are those numbers which can be written in the form of p/q and q cannot be equal to zero because if q is equal to zero the whole fraction will become infinity. The numbers whih cannot be written as p/q are known as irrational numbers.
From the all option zero is the identity for addition for rational numbers. This means if a is a rational number. Then a+0=0+a=a.
Hence the identity for addition for rational numbers is zero which is the option b.
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Round 219.2 to the nearest whole number
❄ Hi there,
let us revise the two rounding rules before getting down to the actual process of rounding.
[tex]\sf{Rules:}[/tex]
If the number you ought to round to is followed by a number from 0 to 4, you round down, or in other words, just drop that number.If the number you ought to round to is followed by a number that's 5 or more, you add 1 to that number.Let's see these rules in action!
The number is – [tex]219.2[/tex].
Nearest whole number – [tex]219[/tex], which is followed by a number between 0 and 4, so we just drop that number :
[tex]\sf{219.2- > > 219}[/tex]
❄
A fountains pool is enclosed by a circular plastic tank. The distance from the center of the pool to the wall of the tank is 10 feet. How long is the wall of the tank in feet?
The length of the wall of the tank in feet is 62.8 feet.
How to solve circumference?Circumference is the perimeter of a circular object. Therefore,
circumference = 2πr
where
r = radiusThe fountains pool is enclosed by a circular plastic tank.
The distance from the centre of the pool to the wall of the tank is 10 feet. This is the radius of the circle
Hence,
length of the tank = 2πr
length of the tank = 2 × 3.14 × 10
length of the tank = 20 × 3.14
length of the tank = 62.8 feet.
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No matter what the value of s, 1s? is equal to the
value of s.
The complete statement is no matter what the value of s, √s² is equal to the absolute value of s?
How to complete the blank?The statement is given as:
No matter what the value of s, √s² is equal to the ______ value of s?
The above statement can be split as follows:
No matter what the value of s, √s² is equal to the ______ value of s?This means that, irrespective of the value of s, what would be the value of the square root of the square of s.
Assume that s is negative (say s = -2), the value of the square root of the square of s would be
√s² = √(-2)²
Evaluate the square
√s² = √4
Evaluate the square root
√s² = 2
See that s = 2 is the positive equivalent or absolute value of s = -2
Now, assume that s is positive (say s = 4), the value of the square root of the square of s would be
√s² = √4²
Evaluate the square
√s² = √16
Evaluate the square root
√s² = 4
See that s = 4 is the positive equivalent or absolute value of s = 4
Hence, the complete statement is no matter what the value of s, √s² is equal to the absolute value of s?
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Complete question
No matter what the value of s, √s² is equal to the ______ value of s?
Assume that adults have iq scores that are normally distributed with a mean of μ=100 and a standard deviation σ=15. find the probability that a randomly selected adult has an iq less than 130
The probability that a randomly selected adult has an IQ less than 130 is 0.9332
For given question,
We have been given adults IQ scores that are normally distributed with a mean of μ = 100 and a standard deviation σ = 15.
We need to find the probability that a randomly selected adult has an IQ less than 130
Sketch the curve.
The probability that X < 130 is equal to the area under the curve which is less than X = 130
Since μ = 100 and σ = 15 we have:
⇒ P ( X < 130 ) = P ( X- μ < 130 - 100 )
⇒ P ( X < 130 ) = P((X− μ)/ σ < 130 - 100/20 )
Since (X-μ)/σ = Z and (130 - 100)/20 = 1.5 we have:
P (X < 130) = P (Z < 1.5)
Now, we use the standard normal table to conclude that:
P (Z < 1.5) = 0.9332
Therefore, the probability that a randomly selected adult has an IQ less than 130 is 0.9332
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Geometry: Use this illustration to calculate these values, ASAP!!!
Applying the same-side interior angles theorem,
7. m∠4 = 50°; m∠5 = 130°
8. m∠2 = 15°; m∠8 = 15°.
What is the Same-Side Interior Angles Theorem?The same-side interior angles theorem holds that, two interior angles on a side of a transversal are supplementary, that is they add up to 180 degrees.
What is the Alternate Exterior Angles Theorem?According to the alternate exterior angles theorem, exterior angles that alternate each other along a transversal are congruent, that is they have equal measures.
7. m∠4 + m∠5 = 180 [same-side interior angles theorem]
Substitute
y + 2y + 30 = 180
3y + 30 = 180
3y = 180 - 30
3y = 150
y = 50
m∠4 = y = 50°
m∠5 = 2y + 30 = 2(50) + 30
m∠5 = 130°
8. m∠2 = m∠8 [alternate exterior angles theorem]
Substitute
x - 30 = 3x - 120
x - 3x = 30 - 120
-2x = -90
x = 45
m∠2 = x - 30 = 45 - 30 = 15°
m∠8 = 3x - 120 = 3(45) - 120 = 15°
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PLS HELP ITS MATH PLS
Answer:
Step-by-step explanation:
y=-1/2x+6
Help please! I already know the answer isn't -2, -1 so I need help figuring out the rest!
A function is shown in the table.
x g(x)
−2 2
−1 0
0 2
1 8
Which of the following is a true statement for this function? (5 points)
Group of answer choices
The function is decreasing from x = 0 to x = 1.
The function is decreasing from x = −1 to x = 0.
The function is increasing from x = 0 to x = 1.
the function is increasing from x = 0 to x = 1
when x = 0, y = 2
when x = 1, y = 8
this shows an increase of +6, so we know this statement is true
we can see the rest are false simply because they state a decrease when there is an increase. this question is only confusing because we ask you about the increase and decrease in the function, when really its the same thing as asking about an increase or decrease in the y variable.
in other words, all youre looking for is the variation of the value of the y variable that is attached to the specific x variables.
hope this helps!!
A label on an empty sample container reads 10.000 g. You add in a sample of a compound and mass the sample container obtaining 13.54 g. What should the mass of the sample be reported as?
The mass of the sample should be reported as 3.54 g
The amount of matter in an object is expressed in terms of mass.
The most frequent way to determine mass is to weigh something.
The units of mass are grams, kilograms, tonnes (in metric units), or ounces and pounds (US units).
According to the question,
A label on an empty sample container reads 10.000 g
A sample of a compound is added and the mass of the sample container is found to be 13.54 g.
The mass of the sample should thus be reported as,
= 13.54 - 10.000
= 3.54 g
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A grocery store sells a bag of 7 oranges for $2.03. If Mason spent $1.16 on oranges, how many did he buy?
Answer: 4
Step-by-step explanation:
2.03 / 7 = 0.29
1.16 / 0.29 = 4
Mason will get 4 oranges on spending 1.16$
What is Rate of change?
A rate is anything that can be measured over time. Common rates include velocity (which is the rate of distance traveled), power (rate of work being done), etc. All these have one thing in common which is that they are all divided by the amount of time it took to obtain a certain measurement.
Here it is given that a grocery store sells a bag of 7 oranges for $2.03,
Now firstly let calculate for 1$ how many oranges Mason get by dividing 7 with 2.03$ :
For 1$ we get = 7/2.03 = 3.5 oranges
Therefore to calculate for 1.16 $ amount spend by Mason will be multiplication of 3.5 with 1.16$ : 3.5 x 1.16 = 4 oranges
Therefore, Mason will get 4 oranges on spending 1.16$
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A juggler is performing her act using several balls. she throws the balls up at an initial height of 4 feet, with a speed of 15 feet per second. this can be represented by the function h(t) = −16t2 15t 4. if the juggler doesn't catch one of the balls, about how long does it take the ball to hit the floor? 7.52 seconds 1.15 seconds 0.47 seconds 0.22 seconds
The ball will take 1.15 seconds to hit the floor.
It is given that,
A juggler is performing her act using several balls. The height as a function of time is given by :
[tex]h(t) =-16t^{2} + vt +s[/tex].............(1)
where,
v is the speed of the ball
s is initial height
t is time taken
Putting h(t) = 0 and solving equation (1)
[tex]-16t^{2} + vt +s = 0[/tex]
[tex]-16t^{2} + 15t +4 = 0[/tex]
On solving above equation using graphing calculator and solving for t we get, t = 1.154 second.
Hence, the correct option is (b) " 1.15 seconds ".
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The mean salary at a local industrial plant is $29,300 with a standard deviation of $5400. The median salary is $24,500 and the 63rd percentile is $29,600.
Step 1 of 5: Based on the given information, determine if the following statement is true or false.
Approximately 63% of the salaries are less than or equal to $29,600
Step 2 of 5: Based on the given information, determine if the following statement is true or false.
Joe's salary of $39,320 is 1.80 standard deviations above the mean.
Step 3 of 5: Based on the given information, determine if the following statement is true or false.
The percentile rank of $25,000 is 50.
Step 4 of 5: Based on the given information, determine if the following statement is true or false.
Approximately 13% of the salaries are between $29,300 and $29,600.
Step 5 of 5: If Tom's salary has a z-score of 0.5, how much does he earn (in dollars)?
The true and false statement about the mean salary is illustrated below.
How to illustrate the information?The true false statement about the mean salary include:
Approximately 63% of the salaries are less than or equal to $29,600Joe's salary of $39,320 is 1.80 standard deviations above the mean.The percentile rank of $25,000 is 50.Approximately 13% of the salaries are between $29,300 and $29,600.When Tom's salary has a z-score of 0.5, the amount that he earns will be:
0.5 = (x - 29300)/5400
0.5 × 5400 = x - 29300
2700 = x - 29300
x = 29300 + 2700.
x = 32000
The amount he earns is 32000.
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Please help
Thank you!
The given transformation is a reflection across the y-axis that changes the coordinates EFGH into E'F'G'H' as follows:
E(-4, -1) → E'(4, -1)
F(-2, -1) → F'(2, -1)
G(-1, -2) → G'(1, -2)
H(-1, -4) → H'(1, -4)
What is the transformation rule for reflection?The transformation rules for reflection are:
Reflection at y-axis: y = f(-x);
Reflection at x-axis: y = -f(x);
Calculation:The given polygon has four vertices EFGH.
Their coordinates are:
E(-4, -1), F(-2, -1), G(-1, -2), and H(-1, -4)
When the transformation rule: reflection across the y-axis is applied, the coordinates become:
y = f(-x); rule
For E(-4, -1), x-coordinate is -4. So, -(-4) = 4
⇒ E'(4, -1)
For F(-2, -1), x-coordinate is -2. So, -(-2) = 2
⇒ F'(2, -1)
For G(-1, -2), x-coordinate is -1. So, -(-1) = 1
⇒ G'(1, -2)
For H(-1, -4), x-coordinate is -1. So, -(-1) = 1
⇒ H'(1, -4)
Thus, the transformed coordinates are:
E(-4, -1) → E'(4, -1)
F(-2, -1) → F'(2, -1)
G(-1, -2) → G'(1, -2)
H(-1, -4) → H'(1, -4)
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pls help questions 1-2
1) a) The volume of the sphere is 100 cubic centimeters.
b) The volume of the cylinder is 200 cubic centimeters.
2) The volume of the cone is 175 cubic centimeters.
What is the volume of a submerged object?
Herein we have two case of submerging solids into recipients full of liquid, the volume of the objects is equal to the volume of the displaced liquid. Now we proceed to calculate the volume of each object:
Point 1 - Part A:
0.8 L - 0.5 L = 3 · x
0.3 = 3 · x
x = 0.1 L
x = 100 cm³
The volume of the sphere is 100 cubic centimeters.
Point 1 - Part B:
0.8 L - 0.5 L = x + y
0.3 = x + y
0.3 = 0.1 + y
y = 0.2 L
y = 200 cm³
The volume of the cylinder is 200 cubic centimeters.
Point 2:
350 mL = 2 · z
z = 175 mL
z = 175 cm³
The volume of the cone is 175 cubic centimeters.
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ind the present value that will grow to $4000 if the annual interest rate is 8.5% compounded quarterly for 9 yr.
Answer:
$1876.31
Step-by-step explanation:
The present value can be found using the compound interest formula.
Present valueThe formula for the future value of an investment of P earning annual interest rate r compounded n times per year for t years is ...
FV = P(1 +r/n)^(nt)
Filling in the known values gives ...
4000 = P(1 +0.085/4)^(4·9) = P(1.02125^36)
Then the amount to be invested is ...
P = 4000/1.02125^36 ≈ 1876.31
The present value is $1876.31.
(08.05 MC)The following box plot shows the number of books sold each day at a bookstore for 40 days. How many days did the bookstore sell 2 to 12 books?
A box plot is drawn with end points at 0 and 16. The box extends from 2 to 12 and a vertical line is drawn inside the box at 7
2
4
10
20
Considering the given box-and-whisker plot, it is found that the bookstore sold between 2 to 12 books in 20 days.
What does a box-and-whisker plot shows?A box and whisker plot shows three things:
The 25th percentile, which is the median of the bottom 50%.The median, which splits the entire data-set into two halfs, the bottom 50% and the upper 50%.The 75th percentile, which is the median of the upper 50%.From the plot given in this problem, the have that:
The 25th percentile is of 2.The median is of 7.The 75th percentile is of 12.This means that the percentage of days in which between 2 to 12 books were sold is:
P = 75 - 25 = 50%.
Hence, out of 40 days, the amount of days is:
0.5 x 40 = 20 days.
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Which function has a vertex at the origin?
f(x) = (x + 4)²2
f(x) = x(x-4)
f(x) = (x-4)(x + 4)
f(x) = -x²
Answer:
f(x) = -x²
Step-by-step explanation:
Writing f(x) = -x² in vertex form gives f(x)=-(x-0)^2+0 which shows that the vertex (h,k) is at (0,0)
The other equations written in vertex form do not have (h,k) = (0,0)
Combine like terms to create an equivalent expression. 1.3b 7.8-3.2b1.3b 7.8−3.2b
The simplified equivalent expression exists -1.9b + 7.8.
What is equivalent expression?An equivalent expression exists an expression that contain the same value or worth as another expression, but does not look the same.
Combine the coefficient of the term b, we get
1.3b + 7.8–3.2b
= (1.3−3.2)⋅b + 7.8
simplifying the equation, we get
= (- 1.9) +b + 7.8
= −1.9b + 7.8
The simplified equivalent expression exists -1.9b + 7.8.
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Suppose the six people consist of three mar- ried couples and each couple wants to sit together with the older partner on the left. how many ways can the six be seated together in the row?
6 possible ways to order 3 couples in a row
Given,
We have three married couples. that is six persons in total.
a, b, c, d, e, f may taken as the six persons.
Considering the statement:
Elder partner on the left, assume a, c and e as elders.
Then we have, (a, b) ------ ( 1)
(c, d) ------ (2)
(e, f) ------ (3)
There is no change in position between the couples.
So, we get three persons in total.
Possible ways to order these three persons will be like this: 3! = 3×2×1
= 6
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Choose the most appropriate translation of the english sentence. the amount of time spent spent driving is 5 hours
The most appropriate translation of the English sentence. the amount of time spent driving (which depends on the speed of the car) is 5 hours. is time(speed) = 5, making option C the right choice.
The time spent by a body covering a certain distance at a certain speed is given as time = distance/speed.
In the question, we are asked to translate the English sentence, :"the amount of time spent driving (which depends on the speed of the car) is 5 hours".
In the given sentence, the time spent driving is given to be 5 hours, depending on the speed of the car.
Thus, the time can be shown as a function of speed with a value of 5.
Thus, the translation can be, time(speed) = 5.
Thus, the most appropriate translation of the English sentence. the amount of time spent driving (which depends on the speed of the car) is 5 hours. is time(speed) = 5, making option C the right choice.
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The provided question is incomplete. The complete question is:
"Choose the most appropriate translation of the English sentence. the amount of time spent driving (which depends on the speed of the car) is 5 hours.
a. speed(time) = 5
b. time(5) = 50 mph
c. time(speed) = 5
d. time(speed) > 0"
An athlete trains for 80 min each day for as many days as possible. Write an equation that relates the number of days d that the athlete spends training when the athlete trains for 400min.
80d = 400 is the equation that relates the number of days d that an athlete spends training when the athlete trains for 400 min given that athlete trains for 80 min each day for as many days as possible. This can be obtained by converting the given statements into algebraic equation.
Find the required equation for the given question:Here in the question it is given that,
Athlete trains for 80 min each day,that is each day the athlete spends 80 min.
We have to assume the variable d the number of days the athlete spends training.Finally we have to find an equation that relates the number of days d that the athlete spends training when the athlete trains for 400 min.So we can write that,
400 min is the time spent by the athlete
400 min = number of days × time spent by the athlete in one day
400 min = d × 80
⇒ 80d = 400
Hence 80d = 400 is the equation that relates the number of days d that an athlete spends training when the athlete trains for 400 min given that athlete trains for 80 min each day for as many days as possible.
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Find the mean 35 40 12 16 25 10
Answer: Mean = 23
Step-by-step explanation:
Given information:
35, 40, 12, 16, 25, 10
Given formula:
[tex]Mean~=~\frac{Sum~of~terms}{Number~of~terms}[/tex]
Substitute values into the formula
[tex]Mean~=~\frac{35~+~40~+~12~+~16~+~25~+~10}{6}[/tex]
Combine like terms
[tex]Mean~=~\frac{75~+~28~+~35}{6}[/tex]
[tex]Mean~=~\frac{103~+~35}{6}[/tex]
[tex]Mean~=~\frac{138}{6}[/tex]
Simplify the fraction
[tex]\Large\boxed{Mean=23}[/tex]
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find the area of the shapes shown in the diagrams below. The lengths are in centimeters.
Answer:
(a) 22cm^2
Step-by-step explanation:
(a) 6*3=18
2*2=4
4+18=22
(06.01 mc) what is the value of the expression 9 (fraction 1 over 2)4 ⋅ 48? 12 15 17 18
The value of the given expression is 105.
What are expressions?An expression or mathematical expression is a finite combination of symbols that is well-formed according to context-dependent norms. To help identify the sequence of operations and other features of logical syntax, mathematical symbols can denote numbers (constants), variables, operations, functions, brackets, punctuation, and grouping.To find the value of the given expression:
Given function - 9 + (fraction 1 over 2)4 ⋅ 48Let, 9 + 1/2 ⋅ 4 ⋅ 48.Follow the PEMDAS order of operations:
Multiply and divide (left to right).
1/2 ⋅ 4 ⋅ 48 = 96 9 + 1/2 ⋅ 4 ⋅ 48 = 9 + 96Add and subtract (left to right)
9 + 96 = 105Therefore, the value of the given expression is 105.
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determine o vértice da função quadrática y=16x²-6x-10