Citizen registration and voting varies by age and gender. The following data is based on registration and voting results from the Current Population Survey following the 2012 election. A survey was conducted of adults eligible to vote. The respondents were asked in they registered to vote. The data below are based on a total sample of 849. . We will focus on the proportion registered to vote for ages 18 to 24 compared with those 25 to 34. . The expectation is that registration is lower for the younger age group, so express the difference as P(25 to 34)- P(18 to 24) . We will do a one-tailed test. Use an alpha level of 05 unless otherwise instructed. The data are given below. Age Registered Not Registered Total 18 to 24 58 51 109 25 to 34 93 47 140 35 to 44 96 39 135 45 to 54 116 42 158 55 to 6 112 33 145 65 to 74 73 19 92 75 and over 55 15 70 Total 603 245 849 What is the Pooled Variance for this Hypothesis Test? Usc 4 decimal places and the proper rules of rounding. D Question 15 3 pts Small Sample Difference of Means Test. Each year Forbes puts out data on the top college and universities in the U.S. The following is a sample from the top 300 institutions in 2015. The test we will look at is the difference in the average 6-year graduation rates of private and public schools. The das given below. We will assume equal variances. Note: I used the variances for all my calculations 6-Year Graduation Rates by Private and Public Top Universities Private Public Private Public Mean 78.053 77.588 Leaf Leaf Median 76.000 79.000 51 51 648889 61.000 67.000 Min Max 617889 710234 95.000 93.000 71002568 Variance 96.830 67.132 812445 Std Dev 7.840 8.193 91135 81012345 9|13 101 12.607 101 CV Count 19 17 If a priori, we thought private schools should have a higher 6-year average graduation rate than public schools, the conclusion of the hypothesis test for this problem would be to reject the null hypothesis at alpha.

Answer:

     A

Step-by-step explanation:

got it right on edg 2020

354 Valencia student tickets and 133 non-student tickets were sold.

Let's use algebra to solve the problem. Let

x be the number of Valencia student tickets sold

y be the number of non-student tickets sold

We know that

x + y = 487 (the total number of tickets sold is 487)

14x + 25y = 8391 (the total receipts from ticket sales is $8391)

We can use the first equation to express one of the variables in terms of the other. For example, we can solve for y

y = 487 - x

Here we have to use the substitution method, we can then substitute this expression for y into the second equation

14x + 25(487 - x) = 8391

Simplifying and solving for x

14x + 12275 - 25x = 8391

-11x = -3884

x = 354

So, 354 Valencia student tickets were sold. We can use the first equation to find y

x + y = 487

354 + y = 487

y = 133

So, 133 non-student tickets were sold.

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Answer:

if he delivers 95 newspapers in 2 hours it means that he can deliver 190 in 4 hours, sadly if we were to find out how much he can do per hour he would do 47.5 so this would mean that he would do 237.5 we can round this up to 238, we could expect him to deliver 238 newspapers

if its diameter is 6, then its radius is half that or 3.

\(\textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h }{3}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=3\\ h=4 \end{cases}\implies V=\cfrac{\pi (3)^2(4)}{3}\implies V=12\pi \\\\[-0.35em] ~\dotfill\\\\ \textit{surface area of a cone}\\\\ SA=\pi r\sqrt{r^2+h^2}+\pi r^2\qquad \implies \qquad SA=\pi (3)\sqrt{3^2+4^2}+\pi (3)^2 \\\\\\ 3\pi \sqrt{25}+9\pi \implies 3\pi (5)+9\pi \implies 15\pi +9\pi \implies 24\pi\)

Answer:

.705

because it comes after the decimal point

Answer:

.705 yan na ha kkkkkkkk

Answer:  I don't known b ???????

Step-by-step explanation:

Step-by-step explanation:

step one Choose C

Answer:

25%

Step-by-step explanation:

The total number of 7th grade students = 9 + 11 + 11 + 13 = 44

Out of the 44 students 11 play bass

Probability that a seventh grader chosen at random will play the base is:

11/44 = 1/4 = 0.25

As a percentage, this would be 0.25 x 100 = 25%

Answer:

Step-by-step explanation:

k/9=10/3 multiply both sides by 9

k=90/3

k=30

Answer:

Hello

\( \frac{10}{3} = \frac{k}{9} \\ 10 \times 9 = 3k \\3 k = 90 \\ k = 90 \div 3 \\ k = 30\)

hope it helps

Have a nice day

(i) Percentage difference ≈ 1.25%

(ii) Percent error of E1 ≈ 1.63%

(iii) Percent error of E2 ≈ 0.82%

(iv) Percent error of the mean ≈ 0.41%

To determine the experimental value of π, we can use the formula:

π = Circumference / Diameter

Given that the average diameter is 4.25 cm and the average circumference is 13.39 cm, we can substitute these values into the formula:

π = 13.39 cm / 4.25 cm

π ≈ 3.1482

The experimental value of π, to the correct number of significant figures, is approximately 3.1482.

Now, let's calculate the fractional error and percent error of the experimental value of π, compared to the accepted value of 3.1416.

Fractional error = (Experimental value - Accepted value) / Accepted value

Fractional error = (3.1482 - 3.1416) / 3.1416

Fractional error ≈ 0.0021

Percent error = Fractional error * 100

Percent error ≈ 0.0021 * 100

Percent error ≈ 0.21%

Therefore, the fractional error of the experimental value of π is approximately 0.0021, and the percent error is approximately 0.21%.

Moving on to the second question regarding the measurement of acceleration due to gravity:

(i) Percentage difference:

Percentage difference = |(E1 - E2) / ((E1 + E2)/2)| * 100

Percentage difference = |(9.96 - 9.72) / ((9.96 + 9.72)/2)| * 100

Percentage difference ≈ 1.25%

(ii) Percent error of E1:

Percent error of E1 = |(E1 - Accepted value) / Accepted value| * 100

Percent error of E1 = |(9.96 - 9.8) / 9.8| * 100

Percent error of E1 ≈ 1.63%

(iii) Percent error of E2:

Percent error of E2 = |(E2 - Accepted value) / Accepted value| * 100

Percent error of E2 = |(9.72 - 9.8) / 9.8| * 100

Percent error of E2 ≈ 0.82%

(iv) Percent error of the mean:

Percent error of the mean = |(Mean - Accepted value) / Accepted value| * 100

Mean = (E1 + E2) / 2

Mean = (9.96 + 9.72) / 2 = 9.84

Percent error of the mean = |(9.84 - 9.8) / 9.8| * 100

Percent error of the mean ≈ 0.41%

To summarize:

(i) Percentage difference ≈ 1.25%

(ii) Percent error of E1 ≈ 1.63%

(iii) Percent error of E2 ≈ 0.82%

(iv) Percent error of the mean ≈ 0.41%

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Answer:

k=4

Step-by-step explanation:

-60 = -15k

-60÷-15= -15k÷-15

-60÷-15=k

-60÷-15=4

k=4

-60=-15k

-60= -15(4)

Answer:

0.04 is the answer

Step-by-step explanation:

that is the answer

The equation of the line with slope 4 that goes through the point (-3,0) is y = 4x + 12.

The equation of the line passing through the point (-3,0) with a slope of 4 can be found using the point-slope form of a line's equation:

y - y1 = m(x - x1)

where the provided point is (x1, y1), and m is the slope.

When we change the values, we obtain:

y - 0 = 4(x - (-3))

Making the right side simpler:

y = 4x + 12

Hence, y = 4x + 12 is the equation of the line with slope 4 passing through the point (-3,0).

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Answer:

-43

Step-by-step explanation:

-1-7(6)

-1-42

-43

Answer:

here you go. hope this helps!

The correct answer is that the probability of a cash flow being between $16,000 and $19,000 is approximately 18.59%.

To calculate the probability of a cash flow being between $16,000 and $19,000, we can use the standard deviation and assume a normal distribution.

We are given that the average cash flow is $14,000 with a standard deviation of $5,000. These values are necessary to calculate the probability.

The probability of a cash flow falling within a certain range can be determined by converting the values to z-scores, which represent the number of standard deviations away from the mean.

First, we calculate the z-score for $16,000 using the formula: z = (x - μ) / σ, where x is the cash flow value, μ is the mean, and σ is the standard deviation. Plugging in the values, we get z1 = (16,000 - 14,000) / 5,000.

z1 = 2,000 / 5,000 = 0.4.

Next, we calculate the z-score for $19,000: z2 = (19,000 - 14,000) / 5,000.

z2 = 5,000 / 5,000 = 1.

Now that we have the z-scores, we can use a standard normal distribution table or calculator to find the corresponding probabilities.

Subtracting the probability corresponding to the lower z-score from the probability corresponding to the higher z-score will give us the probability of the cash flow falling between $16,000 and $19,000.

Looking up the z-scores in a standard normal distribution table or using a calculator, we find the probability for z1 is 0.6554 and the probability for z2 is 0.8413.

Therefore, the probability of the cash flow being between $16,000 and $19,000 is 0.8413 - 0.6554 = 0.1859, which is approximately 18.59%.

So, the correct answer is that the probability of a cash flow being between $16,000 and $19,000 is approximately 18.59%.

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The probability of a cash flow between $16,000 and $19,000 is approximately 18.59%.

To calculate the probability of a cash flow being between $16,000 and $19,000, we can use the standard deviation and assume a normal distribution.

We are given that the average cash flow is $14,000 with a standard deviation of $5,000. These values are necessary to calculate the probability.

The probability of a cash flow falling within a certain range can be determined by converting the values to z-scores, which represent the number of standard deviations away from the mean.

First, we calculate the z-score for $16,000 using the formula: z = (x - μ) / σ, where x is the cash flow value, μ is the mean, and σ is the standard deviation. Plugging in the values, we get z1 = (16,000 - 14,000) / 5,000.

z1 = 2,000 / 5,000 = 0.4.

Next, we calculate the z-score for $19,000: z2 = (19,000 - 14,000) / 5,000.

z2 = 5,000 / 5,000 = 1.

Now that we have the z-scores, we can use a standard normal distribution table or calculator to find the corresponding probabilities.

Subtracting the probability corresponding to the lower z-score from the probability corresponding to the higher z-score will give us the probability of the cash flow falling between $16,000 and $19,000.

Looking up the z-scores in a standard normal distribution table or using a calculator, we find the probability for z1 is 0.6554 and the probability for z2 is 0.8413.

Therefore, the probability of the cash flow being between $16,000 and $19,000 is 0.8413 - 0.6554 = 0.1859, which is approximately 18.59%.

So, the correct answer is that the probability of a cash flow being between $16,000 and $19,000 is approximately 18.59%.

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A neural network is a complicated set of possibly nonlinear equations. There are at least two degrees to a nonlinear equation.

This means that a variable in the equation can only be raised to the power of two or higher. A linear equation is typically represented as y = mx + c, where x and y are variables, m is the line's slope, and c is a constant. A nonlinear equation is one in which the highest degree of any term is two or greater. Since equation 1 has the highest degree of 2, and equation 2 involves variables x and y, this is an example of a nonlinear equation. + 2x + 1 = 0, 3x + 4y = 5, etc.

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Step-by-step explanation:

Let's call the shorter base of the trapezoid "b1", the longer base "b2", and the height "h". We can use the formula for the surface area of a right prism to set up an equation:

Surface area of prism = 2(base area) + (lateral area) = 1280

The base area is the area of the trapezoid, which is given by:

(base area) = (1/2)(b1 + b2)h

The lateral area is the area of the four rectangular faces of the prism, which are all congruent. Each face has an area equal to the product of the height and the length of one of the legs of the trapezoid, so the lateral area is:

(lateral area) = 4hl

where l is the length of one of the legs of the trapezoid.

Substituting these expressions into the formula for the surface area of the prism, we get:

2[(1/2)(b1 + b2)h] + 4hl = 1280

Simplifying and rearranging, we get:

h(b1 + b2) + 2hl = 1280

We also know that the sum of the lengths of the legs of the trapezoid is 52 feet, which means:

l1 + l2 = 52

But we can express l1 and l2 in terms of b1 and b2 using the formula for the area of a trapezoid:

(base area) = (1/2)(b1 + b2)h = (1/2)(l1 + l2)h

Simplifying, we get:

b1 + b2 = (l1 + l2)h

Substituting this into the previous equation, we get:

h[(l1 + l2)h] + 2hl = 1280

Simplifying, we get:

h^2(l1 + l2) + 2hl = 1280

Substituting l1 + l2 = 52, we get:

h^2(52) + 2hl = 1280

This is a quadratic equation in h. We can solve it using the quadratic formula:

h = [-2l ± sqrt(4l^2 + 4h^2(52)(1280 - 2hl))] / 2(52)

Simplifying and factoring out a 2, we get:

h = [-l ± sqrt(l^2 + h^2(1280 - 2hl))] / 52

We have two possible solutions for h, but one of them is negative, which doesn't make sense in the context of the problem. So we can discard the negative solution and focus on the positive one:

h = [-l + sqrt(l^2 + h^2(1280 - 2hl))] / 52

We don't know the exact value of h yet, but we can use this equation to set up a system of equations that we can solve for h. Specifically, we can use the fact that the legs of the trapezoid add up to 52 feet to solve for l in terms of b1 and b2:

l = 52 - (b1 + b2)

Substituting this into the equation for h, we get:

h = [-l + sqrt(l^2 + h^2(1280 - 2hl))] / 52

h = [-52 + (b1 + b2) + sqrt((52 - (b1 + b2))^2 + h^2(1280 - 2h(b1 + b

According to the following table, the same constant of proportionality between yyy and xxx in the relation y=8x is.

The proportionality constant k is defined as k=y/x when y and x are two numbers that are directly proportional to one another. If you are aware of the proportionality constant, you can use the equation y=kx, where k is the proportionality constant you are interested in, to determine the direct link between x and y. As an example, we may write y = kx, where k is the proportionality constant, x is the quantity of gas in gallons, and y is the cost in dollars. In other words, the cost is directly related to the number of gallons pumped.

By calculating

32=4*8

56=7*8

64=8*8

Therefore, y=8x.

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Answer:  Lottie saved 330 pounds.

Step-by-step explanation:

Lottie's amount can be represented by the expression   x + 76  and Kai's amount is unknown so we will also represent by x.

We know that the combination of their savings will be 584 pounds so we will add the expression and set them equal 584.  

x + (x + 76) = 584   Now solve for x

2x + 76 = 584      

      -76     -76

2x = 508

x= 254  

If x was Kai's amount then Kai save 254 pounds.

Lottie saved 76 more that Kai

254 + 76 = 330

Lottie also save 330 pounds

Answer:

D

Step-by-step explanation:

D

Answer:

x = 8

Step-by-step explanation:

This question is pretty simple. You already know the value of x, we substitute what x equals and find the number 2 cubed.

2^3 = ?

2x2x2 = 8

Answer:

change to standard form

-9x+y=4

multiply through by -1

9x-y=-4

Answer: x = -6, -1

Step-by-step explanation:

Factor

(x+6)(x+1)=0

To get 0 out of multiplication, you must have one term equal 0.  Thus, either x+6 or x+1 must equal 0.  Thus, x = -6,-1

Hope it helps <3

tyvm :)

Answer:

Factors : (x+1) , (x+6)

Solution : x = -1  or  x = -6

Step-by-step explanation:

\(x^2+7x+6 = 0\)

The left side of the equation can be factored.

Factor the left side.

\(x^2+1x+6x+6 = 0\)

\(x(x+1)+6(x+1)=0\)

\((x+1)(x+6)=0\)

Set the factors equal to 0.

\(x+1=0\\x=-1\)

\(x+6=0\\x=-6\)

Answer:

perseveration

Step-by-step explanation:

The term you are looking for is "perseveration."

Answer:

D. Theoretical

Step-by-step explanation:

The probability is based on the number of marbles in the bag.  It is the theoretical probability.  It is the likelihood that a yellow marble will be picked

Answer:

[-4,9)

Step-by-step explanation:

im like 99% sure this is right bc i just did a problem like this (:

Answer:

-13

Step-by-step explanation:

i got it by sibtracting 9 and -4

Answer:

Given, Addition Property of Equality, and Division Property of Equality

Step-by-step explanation:

Given 18-2x=4x,

You use the addition property of equality and add 2x to each side to get 18=6x,

and you use the division property of equality and divide each side by 6 to get 3=x.

Answer: