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3 years ago

Solve (4 - x ≤ -1) ∩ (2 + 3x ≥ 17). Click on the graph until the solution set appears.

Mathematics

2 answers:

dlinn [17]3 years ago

8 0

Answer: I believe it’s “x is greater than or equal to 5.”

alex41 [277]3 years ago

5 0

Your answer is X is greater than 5

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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 14901490 and the standard dev

kicyunya [14]

<h2>Answer with explanation:</h2>

Given : A standardized exam's scores are normally distributed.

Mean test score : $\mu=1490$

Standard deviation : $\sigma=320$

Let x be the random variable that represents the scores of students .

z-score : $z=\dfrac{x-\mu}{\sigma}$

We know that generally , z-scores lower than -1.96 or higher than 1.96 are considered unusual .

For x= 1900

$z=\dfrac{1900-1490}{320}\approx1.28$

Since it lies between -1.96 and 1.96 , thus it is not unusual.

For x= 1240

$z=\dfrac{1240-1490}{320}\approx-0.78$

Since it lies between -1.96 and 1.96 , thus it is not unusual.

For x= 2190

$z=\dfrac{2190-1490}{320}\approx2.19$

Since it is greater than 1.96 , thus it is unusual.

For x= 1240

$z=\dfrac{1370-1490}{320}\approx-0.38$

Since it lies between -1.96 and 1.96 , thus it is not unusual.

5 0

3 years ago

Use a calculator to find the

Tamiku [17]

Use the calculator to find the Product

8 0

3 years ago

Estimate the quotient 67 divide 4

mel-nik [20]

4 goes into 67 16 times when whole, with a remainder of 3.

That 3 makes the quotient 16.75
If rounding to the next whole number, 17.
If rounding to the ones place, 16.8

:D

7 0

3 years ago

Question 5(Multiple Choice Worth 2 points)

Gemiola [76]

Answer: 4 i square root of 3

3 0

3 years ago

If x = 5, what additional information is necessary to show that ADAC ZABAC by SAS?

mr Goodwill [35]

Your answer for that question would be
D.AD=AB

8 0

3 years ago