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Hitman42 [59]
3 years ago
5

Find the constant rate of change.

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
3 0

Answer:

-1

Step-by-step explanation:

slope = y2-y1/x2-x1

(5,5) (7,3)

slope = 5-3/5-7 = 2/-2 = -1

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Scores on the GRE.
Bogdan [553]

Answer:

Kindly check explanation

Step-by-step explanation:

Verbal:

Score, x = 560

Mean, m = 460

Standard deviation, s = 132

Quantitative :

Score, x = 740

Mean, m = 452

Standard deviation, s = 140

a)

Verbal :

X ~ N(460, 132)

Quantitative :

X ~ N(452, 140)

(b)

What is her Z score on the Verbal Reasoning section? On the Quantitative Reasoning section? Draw a standard normal distribution curve and mark these two Z scores.

Zscore = (x - m) / s

Verbal :

Zscore = (560 - 460) / 132 = 0.758

Quantitative :

Zscore = (740 - 452) /140 = 2.057

(c.)

He has a higher standardized score in the quantitative than the verbal score.

(d.)

The Zscore shows that he performed better in the quantitative reasoning than verbal.

(e) Find her percentile scores for the two exams.

(f) What percent of the test takers did better than her on the Verbal Reasoning section? On the Quantitative Reasoning section?

Verbal :

Score greater than 560

P(x > 560) :

Z = (560 - 460) / 132 = 0.758

P(Z > 0.758) = 0.22423 = 22.4%

Quantitative :

Score greater than 740

P(x > 740) :

Z = (740 - 452) / 140 = 2.057

P(Z > 0.758) = 0.0198 = 1.98%

8 0
3 years ago
What are three different complex fractions that simplify to 1/4
GaryK [48]
I know one of them is 1/2
7 0
4 years ago
After a big snow storm, Joe and Jim decided to shovel driveways for money. Jim shoveled 3 less than twice as many driveways as J
KIM [24]

Answer:

Joe shoveled 6, Jill shoveled 9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Triangles ABC and DEF are similar triangles. What are the lengths of the unknown sides?<br>​
pantera1 [17]

Answer:

A)

Step-by-step explanation:

In the first image, AC=13, and in the second image, DE=26. so basically, every measurement is simply doubled.

12(2)= 24, DE=24

5(2)=10, EF= 10

Let me know if you need further explanation!

8 0
3 years ago
Simplify the expression
lisov135 [29]

Answer:

The simplified given expression \frac{3x^2y^{-1}}{2x}.\frac{10x^2y}{3y^{-3}} is 5x^3y^3

Step-by-step explanation:

Given expression is

\frac{3x^2y^{-1}}{2x}.\frac{10x^2y}{3y^{-3}}

To find the simplified expression:

\frac{3x^2y^{-1}}{2x}.\frac{10x^2y}{3y^{-3}}=\frac{3x^2.x^-1}{2y^1}.\frac{10x^2y.y^3}{3}   ( Using the properties \frac{a^m}{a^n}=a^{m-n} and   a^m.a^n=a^{m+n} )

=\frac{3x^{2-1}}{2y}.\frac{10x^2y^{1+3}}{3}

=\frac{3x}{2y}.\frac{10x^2y^4}{3} (using division property to the terms)

=5x^{1+2}y^{4-1}  ( Using the properties \frac{a^m}{a^n}=a^{m-n} and  a^m.a^n=a^{m+n} )

=5x^3y^3

Therefore \frac{3x^2y^{-1}}{2x}.\frac{10x^2y}{3y^{-3}}=5x^3y^3

Therefore the simplified given expression is 5x^3y^3

Therefore simplified expression is given by \frac{3x^2y^{-1}}{2x}.\frac{10x^2y}{3y^{-3}}=5x^3y^3

6 0
3 years ago
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