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sergeinik [125]
4 years ago
6

When solving the equation which is the best first step to begin to simplify the equation ? -2(×+3)=-10?

Mathematics
2 answers:
andrezito [222]4 years ago
4 0
Expand it first. -2(x+3)= -2x-6
-2x-6 = 10
-2x = 10+6
-2x = 16
-x = -8
x = 8
jeka944 years ago
3 0
Moltiply -2 by x and +3 to get -2x-6  from there you can solve by adding 6 to -10 =-8 and divide by -2x and get x=4
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Step-by-step explanation:

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7 0
4 years ago
if a circle has a radius of 13 and a sector defined by a 7.4 degree arc, what is the area, in cm2, of the sector? round your ans
nika2105 [10]
For this case the area of the sector is given by:
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3 0
4 years ago
Find the average rate of change for f(x)=x^2-3x-10 from x=-5 to x=-10
worty [1.4K]

Answer:

-18  

Step-by-step explanation:

f(x) = x² - 3x -10

f(-10) = (-10)² – 3(-10) – 10

f(-10) = 100 + 30 - 10

f(-10) = 120

f(-5) = (-5)² – 3(-5) – 10

f(-5) = 25 + 15 - 10

f(-5) = 30

=====

The <em>average rate of change</em> is the slope m of the straight line joining the two points.

m = (y₂ - y₁)/(x₂ - x₁)

m = (30 - 120)/(-5 – (-10))

m = -90/(-5+10)

m = -90/5

m = -18

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wel
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