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Sergeeva-Olga [200]

3 years ago

6

Consider the net of a triangular prism where each unit on the coordinate plane represents four feet. If a sheet of plywood measu

res 4 ft x 8 ft, how many sheets of plywood will a carpenter need to build the prism?
A) 3
B) 3.5
C) 4
D) 4.5

1 answer:

mihalych1998 [28]3 years ago

8 0

The answer would be C. Multiply 4 and 8 which is 32 then divide that by 8 which equals 4.

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A sports news station wanted to know whether people who live in the North or the South are bigger sports fans. For its study, 17

Free_Kalibri [48]

Using the z-distribution, it is found that the 95% confidence interval for the difference is (-1.3, -0.7).

<h3>What are the mean and the standard error for each sample?</h3>

Considering the data given:

$\mu_S = 3.8, n = 175, s_S = \frac{1.7}{\sqrt{175}} = 0.1285$

$\mu_N = 4.8, n = 152, s_N = \frac{1.2}{\sqrt{152}} = 0.0973$

<h3>What is the mean and the standard error for the distribution of differences?</h3>

The mean is the subtraction of the means, hence:

$\overline{x} = \mu_S - \mu_N = 3.8 - 4.8 = -1$

The standard error is the square root of the sum of the variances of each sample, hence:

$s = \sqrt{s_S^2 + s_N^2} = \sqrt{0.1285^2 + 0.0973^2} = 0.1612$

<h3>What is the confidence interval?</h3>

It is given by:

$\overline{x} \pm zs$

We have a 95% confidence interval, hence the critical value is of z = 1.96.

Then, the bounds of the interval are given as follows:

$\overline{x} - zs = -1 - 1.96(0.1612) = -1.3$

$\overline{x} + zs = -1 + 1.96(0.1612) = -0.7$

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

4 0

1 year ago

The weights of NCAA lacrosse players are approximately normally distributed with a mean of 182 lbs and a standard deviation of 1

Marizza181 [45]

Answer:

What can I do for you

Step-by-step explanation:

4 0

2 years ago

One pound of ground beef is $3.09. How much is 4.5 pounds? Round to the nearest hundredth, if necessary.

olga55 [171]

Since 1 pound is $3.09, 4.5 pounds will be:

$4.5*3.09=13.905$

It says to round to nearest hundredth, so your answer is $13.91.

5 0

3 years ago

Read 2 more answers

The polynomial p(x)=x^3-6x^2+32p(x)=x 3 −6x 2 +32p, left parenthesis, x, right parenthesis, equals, x, cubed, minus, 6, x, squar

Ray Of Light [21]

Answer:

(x-4)(x-4)(x+2)

Step-by-step explanation:

Given p(x) = x^3-6x^2+32 when it is divided by x - 4, the quotient gives

x^2-2x-8

Q(x) = P(x)/d(x)

x^3-6x^2+32/x- 4 = x^2-2x-8

Factorizing the quotient

x^2-2x-8

x^2-4x+2x-8

x(x-4)+2(x-4)

(x-4)(x+2)

Hence the polynomial as a product if linear terms is (x-4)(x-4)(x+2)

8 0

2 years ago

I need help!! I'll report if wrong

ss7ja [257]

Answer:

23

Step-by-step explanation:

2+2+3+4+5+6 = 23

3 0

2 years ago