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tensa zangetsu [6.8K]

3 years ago

10

Not sure how to do this

1 answer:

Stolb23 [73]3 years ago

3 0

Answer:
Scale factor of 2

Explanation:
I compared the lengths of AC to DF. AC is one unit long, whereas DF is two units long, so DF is dilated by a scale factor of 2.

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What number is 80% of 660?

ddd [48]

Answer:

528

Step-by-step explanation:

(80:100)*660 =

(80*660):100 =

52800:100 = 528

Now we have: 80 percent of 660 = 528

7 0

3 years ago

For a normal distribution with μ=500 and σ=100, what is the minimum score necessary to be in the top 60% of the distribution?

STatiana [176]

Answer:

475.

Step-by-step explanation:

We have been given that for a normal distribution with μ=500 and σ=100. We are asked to find the minimum score that is necessary to be in the top 60% of the distribution.

We will use z-score formula and normal distribution table to solve our given problem.

$z=\frac{x-\mu}{\sigma}$

Top 60% means greater than 40%.

Let us find z-score corresponding to normal score to 40% or 0.40.

Using normal distribution table, we got a z-score of $-0.25$ .

Upon substituting our given values in z-score formula, we will get:

$-0.25=\frac{x-500}{100}$

$-0.25*100=\frac{x-500}{100}*100$

$-25=x-500$

$-25+500=x-500+500$

$x=475$

Therefore, the minimum score necessary to be in the top 60% of the distribution is 475.

3 0

3 years ago

HELP PLS’ Suppose you roll a die. Find the probability of the given event. Simplify your answer.

NikAS [45]

The answer is 2) 2/3

7 0

3 years ago

There are 35 men and 25 women on a bus. If 20 married couples leave the bus, the number of men is how many times the number of w

Angelina_Jolie [31]

Answer:

3

Step-by-step explanation:

15 men would be left

5 women would be left

6 0

3 years ago

Matt gave 5 apples to his son and sold 8 times as many apples. If Matt had 1/2 of the apples left, how many did he have in the b

Gala2k [10]

Answer:

90

Step-by-step explanation:

8*5 = 40

40 + 5 = 45

1/2 x = 45

x = 90

4 0

3 years ago

Read 2 more answers