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3 years ago

How do you find the average rate of change through an interval

1 answer:

soldier1979 [14.2K]3 years ago

7 0

In order to find average rate of change over an interval, do the y2-y1/x2-x1. Solve y for x=9 and x= 4
y2 = -3(9-4)^2 + 3 = -72
y1 = -3(4-4)^2 + 3 = 3

Now, x2 matches with y2 and and x1 matches with y1 obviously...
-72 - 3/9 - 4 = -15

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A class contains 3 female and 9 male students. Find the probability that a student chosen at random is a male, and then a second

sammy [17]

9 +3 = 12 students

9 are male
1st = 9/12 = 3/4
2nd = 8/11

3/4 * 8/11 = 6/11

Answer = D) 6/11

8 0

4 years ago

A blender was originally sold for $90 and has been marked

ale4655 [162]

Answer:

88%

Step-by-step explanation:

From the question given above, the following data were obtained:

Original amount = $ 90

Discounted amount = $ 79.20

Percentage of discount =?

Let the percentage of discount be y %

Thus, we can obtain the value of y as follow:

y /100 × 90 = 79.20

90y /100 = 79.20

Cross multiply

90y = 100 × 79.20

90y = 7920

Divide both side by 90

y = 7920/90

y = 88

Thus, the percentage discount of the blender is 88%

5 0

3 years ago

Read 2 more answers

Explain why applying a vertical translation and then a horizontal translation produces the same result as applying a horizonatal

Tanya [424]

Because it wouldn't matter which direction you go in first. For example would it matter if you took two steps left then three forward or if you took three forward and then two left. It wouldn't because you would end up in the exact same place.

4 0

3 years ago

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1. In the given figure. BEST is a cyclic quadrilateral. ES is produced so that BE=SN. If ET is the bisector of angle BES, prove

padilas [110]

The triangle NET is an isosceles triangle as ET ≅ TN and ET = TN < EN given the condition that BEST is a cyclic quadrilateral.

<h3>How to determine the existence of an isosceles triangle</h3>

In this question we must apply geometric properties of angles and triangles to determine that the triangle NET is an isosceles triangle. Isosceles triangles are triangles with two sides of equal length. In addition, we must apply the geometric concept of proportionality.

Now we proceed to prove the existence of the isosceles triangle:

BE ≅ SN Given
ET is the bisector of ∠BES Given
ET/ES = ET/EB Definition of proportionality
ES = EB (3)
ES ≅ EB Definition of congruence
ET ≅ TN SSS Theorem/Result

Therefore, the triangle NET is an isosceles triangle as ET ≅ TN and ET = TN < EN given the condition that BEST is a cyclic quadrilateral. $\blacksquare$

To learn more on isosceles triangles, we kindly invite to check this verified question: brainly.com/question/2456591

7 0

3 years ago

I need help with my fractions please

Margaret [11]

Answer:

Ok where's the fractions?

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers