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3 years ago

Can someone help me plssssssssssssssssssss

Mathematics

1 answer:

Inessa05 [86]3 years ago

5 0

Answer:

Both pass there all higher the 50%

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I need the answer help<br>

lisov135 [29]

Answer:

the second one(20)

Step-by-step explanation:

If you pretend 20 is x, you solve the equation by pluging in x (20) into the equation and it gives you 70, 70 is what the big part is and 70+20 is 90, which is the size of a 90degree side.

4(20)-10

80-10

70+20=90

3 0

3 years ago

Read 2 more answers

You downloaded a video game to your computer. You have a 60-minute free trial of the game. It takes 5 minutes to set up the game

Luba_88 [7]

Answer:

I think the equation is 7l +5=60

Step-by-step explanation:

7 0

4 years ago

<img src="https://tex.z-dn.net/?f=%20%5Ctimes%20%20%2B%208%20%5Cgeqslant%20%209" id="TexFormula1" title=" \times + 8 \geqslant

Annette [7]

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8. Which one of the following examples represents a repeating decimal?

A. 4.252525

B. 1.111114

C. 0.123123

D. 0.777777

8 0

3 years ago

In a recent contest, the mean score was 210 and the standard deviation was 25. a) Find the z-score of John who scored 190 b) Fin

denpristay [2]

Answer:

a) $Z = -0.8$

b) $Z = 2.4$

c) Mary's score was 241.25.

Step-by-step explanation:

Problems of normally distributed samples can be 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:

$\mu = 210, \sigma = 25$