The probability that a randomly selected household has 3 cars is given as follows:
0.19 = 19%.
How to calculate a probability?The parameters that are needed to calculate a probability are listed as follows:
Number of desired outcomes in the context of a problem or experiment.Number of total outcomes in the context of a problem or experiment.Then the probability is calculated as the division of the number of desired outcomes by the number of total outcomes.
On a probability distribution, the sum of all the probabilities is of 1, hence the probability of 3 cars is obtained as follows:
0.07 + 0.19 + 0.47 + p + 0.06 + 0.02 = 1
0.81 + p = 1
p = 1 - 0.81
p = 0.19.
p = 19%.
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Find a formula for the described function. Express the surface area of a cube as a function of its volume V. SA (V) State the domain of SA(V). (Enter your answer using interval notation.)
The formula for the surface area of a cube in terms of its volume is [tex]SA(V) = 6V^(2/3)[/tex], and the domain of SA(V) is [0, ∞).
Let S represent the surface area of a cube, and let V represent its volume
. The formula for the surface area of a cube in terms of its volume is [tex]SA(V) = 6V^(2/3).[/tex]
The domain of SA(V) is all nonnegative real numbers, since the volume and surface area of a cube cannot be negative.
Volume of cube (V) = s³ where s is the length of any side of the cube.
Surface area of a cube (S) = 6s²
=[tex]6(V^(2/3))[/tex]
Formula for the surface area of a cube in terms of its volume is given as:
[tex]SA(V) = 6V^(2/3)[/tex]
State the domain of SA(V):
The domain of SA(V) is all nonnegative real numbers, since the volume and surface area of a cube cannot be negative.
In interval notation, the domain is [0, ∞).
Therefore, the formula for the surface area of a cube in terms of its volume is[tex]SA(V) = 6V^(2/3)[/tex], and the domain of SA(V) is [0, ∞).
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scores on a test are normally distributed with a mean of 109 and a standard deviation of 15. what percentage of scores are greater than 154?
The percentage of scores that are greater than 154 on the test is approximately 0.13%.
To find the percentage of scores that are greater than 154 on a test with a normal distribution, we can use the properties of the standard normal distribution.
First, we need to standardize the value of 154 by converting it into a z-score. The formula for calculating the z-score is:
z = (x - μ) / σ
where x is the given value, μ is the mean, and σ is the standard deviation.
In this case, x = 154, μ = 109, and σ = 15.
Calculating the z-score:
z = (154 - 109) / 15
z = 45 / 15
z = 3
Now that we have the z-score, we can use a standard normal distribution table or a calculator to find the percentage of scores greater than 154.
Looking up the z-score of 3 in the standard normal distribution table, we find that the area to the left of z = 3 is approximately 0.9987.
Since we want to find the percentage of scores greater than 154, we subtract the area to the left from 1 to get the area to the right.
Area to the right = 1 - 0.9987 = 0.0013
Converting this to a percentage:
Percentage = 0.0013 * 100 = 0.13%
Therefore, approximately 0.13% of scores are greater than 154 on this test.
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Which of the following are remote interior angles of angle 1? Check all that apply.
Answer:
3 and 4
Step-by-step explanation:
3 and 4 because you have to find two angles(in the triangle) that are far away of angles 1
which are 3 and 4
Answer: 3 and 4
Step-by-step explanation:
5+7-2+5=? Please help me out
The answer of 5+7-2+5=15
Perpendicular to y=-3/7 and passes through (2/3,1/2)
Perpendicular to y=-3/7 and passes through (2/3,1/2):Finding the equation of a line perpendicular to a given line and passing through a particular point is one of the fundamental topics of analytical geometry. Let's take a look at the steps that are required to solve this problem.
Step 1: Understand the problem The first step in solving any mathematical problem is to understand the problem and the information given. In this case, we're given the equation y=-3/7 and the point (2/3,1/2), and we're asked to find the equation of a line that is perpendicular to the given line and passes through the given point.
Step 2: Find the slope of the given lineTo find the slope of the given line, we need to convert the equation into slope-intercept form (y=mx+b), where m is the slope and b is the y-intercept. y=-3/7x + bTo do this, we must rearrange the equation in terms of y. y= (-3/7)x + bComparing it with y = mx + b format, we have m = -3/7. Therefore, the slope of the given line is -3/7.
Step 3: Find the slope of the perpendicular lineThe slope of a line perpendicular to another line is the negative reciprocal of the slope of the given line. The negative reciprocal of -3/7 is 7/3.
Step 4: Use the point-slope formula to find the equation of the lineThe point-slope formula for a line is y-y1=m(x-x1).We know that the point (2/3,1/2) lies on the line. Therefore, x1=2/3 and y1=1/2.Substituting these values, we get: y - 1/2 = 7/3(x - 2/3)Multiplying through by 3, we get: 3y - 3/2 = 7x - 14/3Rearranging, we get: 7x - 3y = 8/3Therefore, the equation of the line that is perpendicular to y=-3/7 and passes through (2/3,1/2) is 7x - 3y = 8/3.
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How do you spell 63 in word form
Answer:
Hey mate here is ur answer.....
Step-by-step explanation:
63
Sixty Three
hope it helps you,
follow me.....
Answer:
sixty three
Step-by-step explanation:
pls help its rq ill give u brainliest
Answer:
Option 2
Step-by-step explanation:
Evaluate each expression.
1) 2 x 6+1+1
A) 13
B) 10
C) 14
D) 19
Answer:
c) 14
Step-by-step explanation:
2*6 + 1 + 1
following PEMDAS, the multiplication comes first.
2 * 6 = 12
12 + 1 + 1
14
The probabilities of it landing on sections A, B and
C are shown in the table below.
What is the probability, as a percentage (%), of the
spinner landing on section D?
Section
A
B
с
Probability
1
20
0.23
37%
Answer:
.05 + .23 + .37 + P(D) = 1
.65 + P(D) = 1
P(D) = .35 = 35%
simplify the expression:
2 (3 + m) =
Answer:
6 + 2m
Step-by-step explanation:
You need to use the distributive property - multiply the outside number by each inside value or variable
So: 2 times 3 = 6 and 2 times m = 2m
Put it all back together: 6 + 2m
Answer:
6m
Step-by-step explanation:
how do you write a paragraph proof
Use the remainder Theorem to find the remainder for (x2- 2)/(x - 1) and state whether or not the binomial is a factor of
the polynomial.
Answer:
The remainder is -1
The binomial is not a factor of the polynomial
Step-by-step explanation:
In the algebraic division, there are 4 terms
Dividend ⇒ the term before the division signDivisor ⇒ the term after the division signQuotient ⇒ the answerRemainder ⇒ appear when the dividend not divisible by the divisor (the divisor is not a factor of the dividend)The remainder theorem:
If you divide a polynomial f(x) by (x - h), then the remainder is f(h).You do not need to use the long division to find the remainder, just evaluate the polynomial when x = h to find the remainder.If h(h) = 0, then (x - h) is a factor of f(x)Let us use it to solve the question
∵ The dividend is x² - 2
∴ f(x) = x² - 2
∵ The divisor is x - 1
∴ (x - h) = (x - 1)
∴ h = 1
Let us find f(1)
∵ f(1) = (1)² - 2 = 1 - 2 = -1
∴ f(1) = -1
∴ The remainder is -1
∵ f(1) ≠ 0
∴ x - 1 is not a factor of x² - 2
∴ The binomial is not a factor of the polynomial
Finding the surface area of the paraboloid z=1−x2−y2
that lies above the plane z=−4
The surface area of the paraboloid z = 1 - x^2 - y^2 that lies above the plane z = -4 is 3π√5 square units.
The paraboloid z = 1 - x^2 - y^2 lies above the plane z = -4. To find the surface area of this paraboloid, we need to calculate the area of its intersection with the plane z = -4 and subtract it from the total surface area of the paraboloid.
To find the intersection, we set z = -4 and solve for x and y:
-4 = 1 - x^2 - y^2
x^2 + y^2 = 5
This is the equation of a circle with radius √5 centered at the origin. The area of this circle is π(√5)^2 = 5π.
To find the total surface area of the paraboloid, we use the formula for the surface area of a surface of revolution:
S = 2π∫a^b f(x)√(1 + (f'(x))^2) dx
In this case, we want to revolve the curve z = 1 - x^2 - y^2 around the z-axis. Solving for y in terms of x and z, we get:
y = ±[tex]\sqrt(1 - x^2 - z)[/tex]
We can now use this formula to calculate f(x):
f(x) = 2sqrt(1 - x^2 + 4)
f'(x) = (-2x) / sqrt(1 - x^2 + 4)
Substituting these into the formula for surface area, we get:
S = 2π∫-√5^√5 2*[tex]\sqrt(1 - x^2 + 4) / \sqrt(1 - x^2 + 4) dx[/tex]
Simplifying, we get:
S = 4π∫-√5^√5 dx
S = 8π√5
Subtracting the area of the intersection with the plane, we get:
S = 8π√5 - 5π
S = 3π√5
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Earth’s diameter is approximately 12,760,000 meters.
What is that number in scientific notation?
1.276 × 10-7
12.76 × 10-6
1.276 × 107
0.1276 × 108
Answer: C. 1.276 x 107
Step-by-step explanation:
Correct on e d g e n u i t y!
Answer:
C
Step-by-step explanation:
I just took the asignment.
WILL GIVE BRAINLIEST- In this diagram, is ZHCS (on the right) a scaled copy of XNYJ (on the left)? Explain why or why not.
Answer:
No, they are not copies of each other.
Step-by-step explanation:
<XNY and <ZHC are not the same sized angles. The shapes would have the same angles if they were just scaled down copies.
The product of two consecutive even integers is 48.
Find the numbers.
Let x be the 1steven integer Let x+2 be the 2nd even integer
Equation: (__) ( __ + __)= ___
Answer:
x(x + 2) = 48
x^2 + 2x - 48 = 0
(x - 8)(x + 6) = 0
x = -8, so x + 2 = -6
x = 6, so x + 2 = 8
The numbers are -8 and -6, or 6 and 8.
find value of each of the following 11+(-33)-(-7)
Answer:
= 11-33+7
= 11+7-33
= 18-33
= -15
Step-by-step explanation:
if we multiple + by - then it becomes -
if we multiple - by - then it becomes +
by this way I have done
I hope this will help u .
Solve the applied problem.
A radiator contains 8 quarts of fluid, 40% of which is antifreeze. How much fluid should be drained and replaced with pure antifreeze so that the new mixture is 60% antifreeze?
Answer:
8(.4) + .4a - a = .6(8)
3.2 - .6a = 4.8
.6a = 1.6, so a = 2 2/3 quarts
Find the midpoint of the segment with endpoints of
(1,0), (-2,-4)
Answer:
The midpoint is ( -1/2, -2)
Step-by-step explanation:
To find the x coordinate of the midpoint, add the x coordinates of the endpoint and divide by 2
( 1+-2)/2 = -1/2
To find the y coordinate of the midpoint, add the y coordinates of the endpoint and divide by 2
( 0+-4)/2 = -4/2=-2
The midpoint is ( -1/2, -2)
If we invest $100,000 today in an account earning 7% per year,
how many years until we have $500,000? Round to two decimals.
It would take approximately 19.65 years for an investment of $100,000 at a 7% annual interest rate to grow to $500,000. Rounded to two decimal places, the answer is 19.65 years.
To determine the number of years it will take for an investment of $100,000 at a 7% annual interest rate to grow to $500,000, we can use the compound interest formula:
A = P(1 + r/n)^(nt)
Where:
A = the future value of the investment ($500,000)
P = the initial principal amount ($100,000)
r = the annual interest rate (7% or 0.07)
n = the number of times that interest is compounded per year (assuming annually, so n = 1)
t = the number of years
Plugging in the values we know, we get:
$500,000 = $100,000(1 + 0.07/1)^(1*t)
Dividing both sides of the equation by $100,000 and simplifying:
5 = (1.07)^t
To solve for t, we can take the logarithm of both sides:
log(5) = log[(1.07)^t]
Using logarithmic properties, we can bring down the exponent:
log(5) = t * log(1.07)
Finally, we can solve for t by dividing both sides by log(1.07):
t = log(5) / log(1.07)
Using a calculator, we find:
t ≈ 19.65
Therefore, it would take approximately 19.65 years for an investment of $100,000 at a 7% annual interest rate to grow to $500,000. Rounded to two decimal places, the answer is 19.65 years.
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Solve using addition or subtraction 3.9 + t =4.5
Answer:
0.6
Step-by-step explanation:
subtract 4.5 from 3.9
Find the value of the discriminant. Then describe the number and type of roots for the equation. 3x^2\:+\:4x\:-7=0
The given equation has two real and distinct roots.
The formula for the discriminant is b² - 4ac. For the given equation, 3x² + 4x - 7 = 0,
the value of a = 3, b = 4 and c = -7.Substituting these values in the formula for discriminant, we get:$$\begin{aligned}b^2-4ac&=4^2-4\times3\times(-7) \\&=16+84 \\&=100 \end{aligned}$$
Hence, the value of discriminant is 100.Using the value of the discriminant, we can determine the nature of roots. If the discriminant is positive, then the roots are real and distinct.
If the discriminant is zero, then the roots are real and equal.
If the discriminant is negative, then the roots are imaginary and conjugate.In this case, the discriminant is positive (100), so the roots will be real and distinct.
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TRUE or FALSE: The letter "T" has rotational symmetry.
Which of the following is the solution to the inequality below? -6/5(4-x)<-4(x+1/2)
Answer:
x < 7 /13
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Joshua is designing a rectangular mirror. He let w = the width, in inches, of the mirror. The length of the mirror will be 6 inches more than the width. The perimeter of the mirror will be less than 96 inches and greater than 76 inches. Which of the following inequalities shows the possible widths, in inches, of the mirror?
Answer:
16 < w < 21
Step-by-step explanation:
Given that :
Width if mirror = w
Length of mirror = l
L = 6 + w
Perimeter of mirror < 96 and > 76
Possible width of the mirror
Perimeter of a rectangle :
2(l + w)
2(6 + w + w)
= 2(6 + 2w)
= 12 + 4w
Hence,
76 < perimeter < 96
76 < 12 + 4w < 96
76 - 12 < 4w < 96 - 12
64 < 4w < 84
16 < w < 21
Q2/The following data for an IC engine:-mrod= 1.3 kg.Lord =200 mm.Cg of rod at 60 mm from crank pin centre.Mp=0.96kg.λ=0.25lf the piston area Ap =4x10-3 m2, engine speed 3000 RPM, the gas pressure given by the indicator diagram as shown in the following table 0 0 350 630 720 5 points P • 2 -0.25 C 1 ° the torque of the engine at TDC 157 N.m zero N zero N.m 157 N
The given data provides information about an IC engine, including the mass of the connecting rod (mrod), length of the connecting rod (Lord), center of gravity of the rod (Cg), mass of the piston (Mp), piston area (Ap), engine speed (3000 RPM), and gas pressure at various points in the indicator diagram. We are asked to determine the torque of the engine at top dead center (TDC).
To calculate the torque of the engine at TDC, we need to consider the forces acting on the connecting rod and the piston. The torque can be determined using the equation:
Torque = Force × distance
First, we calculate the force acting on the connecting rod. The force can be obtained using the equation:
Force = Mass × acceleration
The acceleration can be determined using the equation:
Acceleration = (Change in velocity) / time
Since the engine speed is given as 3000 RPM, we convert it to radians per second:
Angular Velocity = (3000 RPM) × (2π radians / 1 minute) × (1 minute / 60 seconds) = 100π radians/second
We can calculate the change in velocity by subtracting the velocity at TDC from the velocity at the given point on the indicator diagram. Then we divide the change in velocity by the time period.
Next, we can determine the distance from the center of the crankshaft to the center of the connecting rod (crank radius) using the given length of the connecting rod and the position of the center of gravity of the rod.
Finally, we can calculate the torque at TDC by multiplying the force acting on the connecting rod by the crank radius.
By following these calculations, we can determine the torque of the engine at top dead center (TDC) based on the given data.
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PLEASE HELP I WILL MARK YOU BRAINLIEST PLEASE
Answer: 2286 ^2 ft
Step-by-step explanation:
Answer:
the answer is 3182540.hope this helps
(c) A different television costs $330.
(1) Ben buys one in a sale when this cost is reduced by 15%.
How much does Ben pay?
Wendy has taken two tests with scores of 77 and
80. To get an 82 average, what must her grade be
on the third test?
Answer:
Her grade must be an 89 or better
Step-by-step explanation:
to find the average you add all the numbers than divide but the total numbers of numbers so when she had the first two test her average was an 78.5 if she has an 85 it is close to the 80's but still less than but if she has a 90 she is averaged to be about 85 so if she gets an 89 she has an exact average of 82
Is 3.65 greater than, less than, or equal to 3 3/4?
3.65 is less than [tex]3\frac{3}{4}[/tex]
First, you must change the mixed number into a decimal so you can compare the two numbers.
[tex]3\frac{3}{4} = 3.75[/tex]
Then, you must compare the terms.
3.65 < 3.75
3.65 is less than [tex]3\frac{3}{4}[/tex]