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3 years ago

PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!!!!!!!!

Mathematics

2 answers:

musickatia [10]3 years ago

8 0

59° + 81°+ x° = 180°

140° + x° = 180°

x = 40°

ch4aika [34]3 years ago

7 0

Answer:

22 = <B

Step-by-step explanation:

The exterior angle of the triangle is equal to the sum of the 2 opposite interior angles

<3 = <A + <B

81 = 59+<B

Subtract 59 from each side

81-59 = 59+<B - 59

22 = <B

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2 years ago

A) what is average rate of change of f(x) over the interval from x=5 to x=9? (table shows values of f(x). graph shows function o

SVETLANKA909090 [29]

Answer:

See below for answers and explanations

Step-by-step explanation:

Part A

The average rate of change of a function over the interval $[a,b]$ is equal to $\frac{f(b)-f(a)}{b-a}$ , hence:

$\frac{f(b)-f(a)}{b-a}\\\\\frac{f(9)-f(5)}{9-5}\\\\\frac{14-(-4)}{9-5}\\ \\\frac{14+4}{4}\\ \\\frac{18}{4}\\ \\\frac{9}{2}$

Therefore, the average rate of change of $f(x)$ over the interval $[5,9]$ is $\frac{9}{2}$ .

Part B

Do the same thing as in Part A:

$\frac{f(b)-f(a)}{b-a}\\ \\\frac{f(1)-f(0.25)}{1-0.25}\\ \\\frac{2-5}{0.75}\\ \\\frac{-3}{0.75}\\ \\-4$

Therefore, the average rate of change of $g(x)$ over the interval $[0.25,1]$ is $-4$ .

Part C

To interpret our answer from Part B in terms of the real world it represents, we say that between 0.25 seconds and 1 second, the ball falls at a rate of 4 feet per second (since our average rate of change is negative).

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1 year ago

If the function rule is 5x, what is the value when x = 3?

cupoosta [38]

This means that we will plug 3 into our x values.

Our rule is 5x.

This means that:
5(3)

This means our final answer will be 15.

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2 years ago