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RUDIKE [14]
2 years ago
10

You scored 80 points on your first math test. On the next test you scored 96 points. What is the percent increase?

Mathematics
1 answer:
Tom [10]2 years ago
5 0

Answer:

20%

Step-by-step explanation:

96-80/80 *100

16/80*100

1/5*100 =20

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In the diagram, the measures of angle 3 and angle 6 are 50 degrees. The measure of angle 5 is 130 degrees. Are lines c and d par
Virty [35]

9514 1404 393

Answer:

  (c)  Yes, because angle 3 and angle 6 are congruent

Step-by-step explanation:

Angles 3 and 6 are "alternate interior" angles. When those angles are congruent, as these are, then the lines crossed by the transversal are parallel.

__

We expect angles 5 and 6 to be supplementary because they are a linear pair. That fact says nothing about the relationship of line d to line c.

7 0
2 years ago
A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.
Crank

Answer: 1.25

Step-by-step explanation:

Given: A college-entrance exam is designed so that scores are normally distributed with a mean(\mu) = 500 and a standard deviation(\sigma) =  100.

A z-score measures how many standard deviations a given measurement deviates from the mean.

Let Y be a random variable that denotes the scores in the exam.

Formula for z-score = \dfrac{Y-\mu}{\sigma}

Z-score = \dfrac{625-500}{100}

⇒ Z-score = \dfrac{125}{100}

⇒Z-score =1.25

Therefore , the required z-score = 1.25

6 0
3 years ago
Show the working for <br><br> 3y^2 x 2y^5 x 5y^4 over 6y^3 x 4y^4
solong [7]

Answer:

please I can't do it I have not been thought

6 0
2 years ago
6.75 + StartFraction 3 Over 8 EndFraction x = 13 and one-fourth
amid [387]
Easy the answer is B: 17 and one-third
3 0
3 years ago
Read 2 more answers
Find the leg of each isosceles right triangle when the hypotenuse is 5 square root 6
kozerog [31]
Hypotenuse = 5√6

Let the length of each leg be x, since it is Isosceles .

x² + x² = (5√6)²

2x² = (5 * 5 * √6 * √6)

2x² = 150

x² = 150/2

x² = 75

x = √75

x = √(25 * 3)

x = √25 * √3

x = 5√3 
5 0
3 years ago
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