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EleoNora [17]
3 years ago
13

Select the correct answer

Mathematics
1 answer:
Elan Coil [88]3 years ago
5 0
3and4 that is it ok
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Arrange these functions from the greatest to the least value based on the average rate of change in the specified interval.
Romashka [77]
By definition, the average change of rate is given by:
 AVR =  \frac{f(x2)-f(x1)}{x2-x1}
 We will calculate AVR for each of the functions.
 We have then:

 f(x) = x^2 + 3x interval: [-2, 3]:
 f(-2) = x^2 + 3x  = (-2)^2 + 3(-2) = 4 - 6 = -2

f(3) = x^2 + 3x = (3)^2 + 3(3) = 9 + 9 = 18
 AVR = \frac{-2-18}{-2-3}
 AVR = \frac{-20}{-5}
 AVR = 4

 f(x) = 3x - 8 interval: [4, 5]:
 f(4) = 3(4) - 8 = 12 - 8 = 4 f(5) = 3(5) - 8 = 15 - 8 = 7
 AVR = \frac{7-4}{5-4}
 AVR = \frac{3}{1}
 AVR = 3

 f(x) = x^2 - 2x interval: [-3, 4]
 f(-3) = (-3)^2 - 2(-3) = 9 + 6 = 15

f(4) = (4)^2 - 2(4) = 16 - 8 = 8
 AVR = \frac{8-15}{4+3}
 AVR = \frac{-7}{7}
 AVR = -1

 f(x) = x^2 - 5 interval: [-1, 1]
 f(-1) = (-1)^2 - 5 = 1 - 5 = -4

f(1) = (1)^2 - 5 = 1 - 5 = -4
 AVR = \frac{-4+4}{1+1}
 AVR = \frac{0}{2}
 AVR = 0


 Answer:
 
these functions from the greatest to the least value based on the average rate of change are:
 f(x) = x^2 + 3x
 
f(x) = 3x - 8
 
f(x) = x^2 - 5
 
f(x) = x^2 - 2x
5 0
3 years ago
What is 21/25 in a fraction
Vlad [161]

21/25 is already a fraction and if you wanted it to be simplified, its already simplified to be 21/25.

5 0
3 years ago
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I need help for 2,3,4 and 5
hoa [83]

Answer:

2 is 12 3 is 3 faces 4 is 151  that's all   i can tell u at least i helped

Step-by-step explanation:

5 0
2 years ago
Please help
maxonik [38]

Answer:

D. -12s squared + 11st - 2t squared

Step-by-step explanation:

FOIL:

-3s(4s) - 3s(-t) + 2t(4s) + 2t(-t)

- 12s² + 3st + 8st - 2t²

Simplify.

- 12s² + 11st - 2t²

7 0
3 years ago
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Kiara downloaded 264 pictures from her cell phone to her computer. These pictures took up 528 megabytes of space on her computer
trapecia [35]

Hello!


Divide 528 and 264. It will give you 2.


Now, multiply 35 and 2.


Answer: 70


Hope this helps! ~Pooch ♥

3 0
3 years ago
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