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lesantik [10]
2 years ago
13

Hi people! Can you help me figure this out? I'll mark brainliest!

Mathematics
1 answer:
Arada [10]2 years ago
4 0

D. 12.5

The equation to find the average rate of change is

\frac{y2 - y1 }{x2 - x1}

To find the average rate of change between points (0,20) and (8,120) you need to plug it into the equation so it'll be

\frac{120 - 20}{8 - 0}

this simplifies to

\frac{100}{8}

which is 12.5

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Lisa sold her old bike for $140 less than she paid for it. She sold the bike for $85. Write and solve and equation to find how m
rodikova [14]

Answer:

Equation=$140+$85=$225

Step-by-step explanation:

If she sold her bike for $140 less than she paid for it, and she sold it for $85, you add 140 to 85 to get out much she paid for. To check your answer do 225-140=85.

4 0
3 years ago
Write an expression to match the words three times the sum of 8and 4
vfiekz [6]
3x8+4 because 3 times so that is 3 x the sum of 8 and 4 so 8+4 together it would be 3x8+4
5 0
3 years ago
Read 2 more answers
Find the x- and y-intercepts of the function f(x) = log(2x + 1) − 1.
sleet_krkn [62]
<span>Alright, here's your answer.

y-intercept is computed (not found) by assigning x = 0 and computing y: here that is f(0) = Log(2*0 + 1) – 1 = Log(1) – 1 = 0 – 1 = -1 
y-intercept is (0, -1) 

x-intercept is computed by solving f(x) = 0 for x: here that is 
0 = Log(2x + 1) – 1 → 1 = Log(2x + 1) 

Assuming the Log cited is base 10, then 10^1 = 10^Log(2x + 1) = 2x + 1 

That’s 10 = 2x + 1 

Therefore 9 = 2x 
x = 9/2 = 4.5 
Check this result in the original equation, I did! 

Your answer is - x-intercept is (4.5, 0)

I hope I helped! :)

</span>
6 0
3 years ago
ASAP HELP ASAP THANK YOU
aliya0001 [1]
15.6/-3 = - 5.2 is the answer
5 0
3 years ago
Read 2 more answers
Y = x^3 + 5x^2 + 3x x= -3
dexar [7]

Answer:

9

Step-by-step explanation:

-3^3 +5*(3)^2 +3*-3

-27+5*9+(-9)

-27+45-9

=9

8 0
3 years ago
Read 2 more answers
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