2 years ago

A triangular prism was sliced parallel to its base. What is the shape of the cross section shown in the figure?

1 answer:

6 0

It’s is “ a triangle that has the same dimensions as either bass of the prism” because a triangular prism, each cross-section parallel to the triangular base is a triangle congruent to the base.

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9 students volunteer for a committee. How many different 7-person committees can be chosen?

bixtya [17]

If order doesn't matter then the number of possible choices is:

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3 years ago

An apple juice producer buys all his apples from a conglomerate of apple growers in one northwest state. the amount of juice squ

marin [14]

That probability is about 20.5%.

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3 years ago

What is the median of the following set? {5, 2, 9, 7, 4} A: 5 B: 7 C: 8 D:9

hram777 [196]

A. 5

(2,4,5,7,9)

5 is in the middle between 4 and 7.

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3 years ago

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Random samples of size 81 are taken from an infinite population whose mean and standard deviation are 200 and 18, respectively.

TiliK225 [7]

Answer:

d. 200 and 2

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

Mean = 200

Standard deviation = 18

Sample size: 81

Standard error: $s = \frac{18}{\sqrt{81}} = 2$

So the correct answer is:

d. 200 and 2

7 0

3 years ago

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How would you write 6 × 6 × 6 × 6 as an exponential expression?

stepan [7]

The answer is 6⁴.

Exponent is the number of times the factor is being multiplied. For example:
x * x = x²
x * x * x = x³
x * x * x * x = x⁴
....
So:
6 * 6 * 6 *6 = 6⁴

8 0

3 years ago