#4 Fill in the missing number on the number line.

Mathematics

2 answers:

storchak [24]2 years ago

8 0

Answer:

-1/4

Step-by-step explanation:

-1/2 + -1/4 = -3/4

This means each item increments by -1/4

We can do -1/2 + 1/4 to get -1/4

Natalija [7]2 years ago

3 0

Answer:

-1/4

Step-by-step explanation:

im not sure how to explain but ill try, -3/4 + 1/4 = -1/2 or -2/4 -2/4 + 1/4 = -1/4

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Novosadov [1.4K]

Step-by-step explanation:

98 = 188t - 16t^2

-16t^2 + 188t = 98

-16t^2 + 188t - 98 = 0

8t^2 - 94t + 49 = 0

Use the quadratic formula with a = 8 , b = -94 , c = 49 to get the solutions

t = [(47 - root 1817) / 8]≈ 0.55

and

t = [(47 + root 1817) / 8] ≈ 11.20

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3 years ago

GIVING BRAINIEST IF CORRECT!!<br> Find the area of the shaded region.

Andreyy89

Area of Shaded triangle as a whole: 136cm^2
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2 years ago

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A high school student took two college entrance exams, scoring 1070 on the SAT and 25 on the ACT. Suppose that SAT scores have a

antoniya [11.8K]

Answer:

Due to the higher z-score, he did better on the SAT.

Step-by-step explanation:

When the distribution is normal, we use 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.

Determine which test the student did better on.

He did better on whichever test he had the higher z-score.

SAT:

Scored 1070, so $X = 1070$