All categories

3 years ago

Please answer this question correctly for 25 points and brainliest!!

Mathematics

1 answer:

Fudgin [204]3 years ago

4 0

He pushed them together to have the most surface area when he was done, so that tells us he put the two smallest sides together.

Essentially, he put them end to end to make a really long prism. The two sides pressed together are both 3x4 so

2(3x4) = 2(12) = 24

You might be interested in

Which of the following is the equation of a line parallel to the line y = 3x + 2, passing through the point (10, 1)?

uysha [10]

Answer:

the answer is A

Step-by-step explanation:

for parallel m1= m2

m2 = 3

formula = y - y1 = m2 ( x - x1)

= y = 3x - 29

4 0

4 years ago

Solve for x. Round to the nearest TENTH of a degree. Type your answer as a single value (don't type "x=" or include any labels).

8090 [49]

Answer:

x = 36.9

Step-by-step explanation:

Use the sine function if you know the length of the opposite side and the hypotenuse. Plug your values into the equation: sine (x) = opposite ÷ hypotenuse. Say that the length of the opposite side is 6 and the length of the hypotenuse is 10. Divide 6 by 10, which is equal to 0.6. Now you know that sine (x) = 0.6 which is the same as x = sine^-1 (0.6).

Steps:

sin (x) = 6/10

sin(x) = 0.6

then we do sin^-1(0.6), which equals 36.869897645844 ° (degrees)

36.869897645844 ° (degrees) rounded to the nearest tenth is 36.9

so x = 36.9

7 0

3 years ago

The mathematics section of a standardized college entrance exam had a mean of 19.8 and an SD of 5.1 for a recent year. Assume th

Fudgin [204]

Answer:

a) 0.84% of students scored over 32

b) 29.12% of students scored under 17

c) 70.04% of students scored between 17 and 32.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 19.8, \sigma = 5.1$

a) About what percent of students scored over 32?

This is 1 subtracted by the pvalue of Z when X = 32. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{32 - 19.8}{5.1}$

$Z = 2.39$

$Z = 2.39$ has a pvalue of 0.9916

1 - 0.9916 = 0.0084

So 0.84% of students scored over 32

b) About what percent of students scored under 17?

This is the pvalue of Z when X = 17. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{17 - 19.8}{5.1}$

$Z = -0.55$

$Z = -0.55$ has a pvalue of 0.2912

So 29.12% of students scored under 17

c) About what percent of students scored between 17 and 32?

This is the pvalue of Z when X = 32 subtracted by the pvalue of Z when X = 12. So

X = 32

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{32 - 19.8}{5.1}$

$Z = 2.39$

$Z = 2.39$ has a pvalue of 0.9916

X = 17

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{17 - 19.8}{5.1}$

$Z = -0.55$

$Z = -0.55$ has a pvalue of 0.2912

0.9916 - 0.2912 = 0.7004

70.04% of students scored between 17 and 32.

5 0

3 years ago

Which factor do 64x^2+48x+9 and 64x^2 - 9 have in common?

erastovalidia [21]

<span>(8x +3) (8x-3)
</span>share the same terms

8 0

3 years ago

What does S equal?<br>Please Explain help needed Asap :((

DedPeter [7]

$Area=\dfrac{25}{36}\ yd^2\\\\Area=s\cdot s=s^2\\\Downarrow\\s^2=\dfrac{25}{36}\to s=\sqrt{\dfrac{25}{36}}\\\\s=\dfrac{\sqrt{25}}{\sqrt{36}}\\\\\boxed{s=\dfrac{5}{6}\ yd}$

5 0

3 years ago