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2 years ago

WILL GIVE BRAINLIEST

Mathematics

1 answer:

galina1969 [7]2 years ago

3 0

I used substitution
The answer is a

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Microsoft wanted to increase the average length of time consumers spend playing their games during a gaming session. They found

Alecsey [184]

Answer:

The answer is "Yes".

Step-by-step explanation:

In this question, the answer is "yes" because as the sample group of 50, it is now under the population size of 10 percent, and Often the random sample is less than 30. It doesn't require the standard deviation, and for each of the samples it was selected randomly, therefore randomization becomes achieved.

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2 years ago

Complete the proof that ∆RSU~∆RTS.

Alisiya [41]

Answer:

SAS Similarity

Step-by-step explanation:

given by lines 1, 2, & 3

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2 years ago

Sonya wants to sew ribbon along each side of a square pillow.

Eduardwww [97]

We are given area of the ribbon = 144 square inches.

We know formula for side of a square = $\sqrt{Area \ of \ a \ square }$ .

Plugging value of area in the formula, we get

Side of the square $= \sqrt{144}$

= 12 inches.

Sonya wants to sew ribbon along each side of a square pillow.

So, we need to find the perimeter of the square pillow.

<h3>Perimeter = 4 × side = 4 × 12 = 48 inches.</h3><h3>Therefore, she buy 48 inches of ribbon to have the exact amount that she needs.</h3>

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2 years ago

Each question on a multiple-choice exam has four choices. One of the choices is correct, worth four points. Another choice is wr

kifflom [539]

Answer:A)0.75

Step-by-step explanation:

Given

There are four options to a question

out of which one is correct with 4 points

one is wrong but carries 1 point

Other two are wrong with a negative Point

Probability of selecting an option is $\frac{1}{4}$

Expected score $=\frac{1}{4}\times 4+\frac{1}{4}\times 1+\frac{1}{4}\times (-1)+\frac{1}{4}\times (-1)$

Expected score=1+0.25-0.5

Expected score=0.75

8 0

2 years ago

Christine owns 9 hair bands and additional hair bands are 2 for a dollar. How much money does she need to spend on hair bands in

kirill [66]

Answer: $20

Step-by-step explanation:

If she already has 9, and she needs 49, take that extra 9 off 49 and then she needs 40 more and she gets 2 for a dollar, she'll need to spend $20 to get 40 headbands. Can I please get Brainliest?

7 0

2 years ago