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2 years ago

2) Which statement is correct?

1 answer:

3 0

Answer = a

Explanation- A cube is a 3D figure and each face would be a square since it is a cube. Since each side is a square all the sides are the same Width, Length, and height. Therefor you would be multiplying whatever number your have by itself 3 times because the formula would be Length x Width x Height

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How does scale factor affect the change in area?

MrRa [10]

<h3>Answer:</h3>

<u>It squares the amount you scaled it by.</u>

<h3>Step-by-step explanation:</h3>

For example, imagine that you had 2 by 2 square, and then you put it through a scale factor of 2.

Now each side length would be double of what it once was.

But when you multiply the new lengths together, the area would be of 4 times more.

(Original Equation) 2 * 2 = 4

(Scale Factor of 2) 4 * 4 = 16

So when the scale factor is made, the area would be squared to the multiple that you scaled it by.

<em>***A square root is a number times itself.</em>

<em>9 and 225 would be the square root in these problems.</em>

7 0

2 years ago

A genetics experiment involves a population of fruit flies consisting of 1 male named Bart and 3 females named Charlene, Diana,

kenny6666 [7]

Answer:

(b) $\frac{1}{2}$

Step-by-step explanation:

1 male named Bart (b)

3 females named Charlene(c), Diana(d), and Erin(e).

Since there is replacement, the possible samples are:

bb, bc, be, bd, cb, cc, cd, ce, db, dc, dd, de, eb, ec, ed, and ee.

Total Number of pairs = 16

Event of picking 2 males:bb

Event of 1 male:bc,cb,bd,db,be,eb

Event of picking 0 males:

cc, cd, ce, dc, dd, de, ec, ed, and ee.

$\begin{equation*} \begin{matrix}Proportion of males & Probability \\0 & 9/16 \\1 & 6/16 \\2 & 1/16 \end{matrix} \end{equation*}$

b. The mean of the sampling distribution

$\mu = (\frac{9}{16} X0 ) +(\frac{6}{16} X 1)+(\frac{1}{16} X 2) = \frac{8}{16} = \frac{1}{2}$

c. No; the proportion of males is $\frac{1}{4}$ while the mean is $\frac{1}{2}$ .

B. No, the sample mean is not equal to the population proportion of males. These values are not always equal, because proportion is an unbiased estimator.

7 0

2 years ago

1. What is the hypothesis for this conditional statement? If a number is even then it is divisible by 2.

liubo4ka [24]

Answer:

If a number is even is the conditional statement.

Step-by-step explanation:

The phrase that starts with "if" is the hypothesis for conditional statement. The phrase that starts with "then" is conclusion for the statement.

Here, the statement is "If a number is even then it is divisible by 2".

Hypothesis = If a number is even

Conclusion = It is divisible by 2

6 0

3 years ago

a culinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as m

Georgia [21]

The adult meals cost 16$ and the student meals cost 8$. A=16 and S=8. 80•8= 640 you then take eight and multiply it by two and get 16 because it says the adult meals were twice as much. 45•16= 720.
640+720= 1360

4 0

3 years ago

Marcia spent $11.07 for 4.5 pounds of apples. What was the cost per pound (for one pound)?

atroni [7]

The cost per pound was roughly $0.41.

8 0

1 year ago