Answer:
x=-2
Step-by-step explanation:
first u subtract 7 on both sides resulting on 8x=-16. Then to isolate x u divide by 8 on both sides.
27/60 = 0.45/1%
0.45 x 100 = 45
Samuel has a total of 45 cars, 60% of the total cars are red. Which is 27 red, and 45 total cars.
X + y = 1.....x = 1 - y
x * y = 0.09
y(1 - y) = 0.09
y - y^2 = 0.09....re-arrange
y^2 - y + 0.09 = 0
(y - 0.9)(y - 0.1) = 0
y - 0.9 = 0 x + y = 1
y = 0.9 x + 0.9 = 1
x = 0.1
y - 0.1 x + y = 1
y = 0.1 x + 0.1 = 1
x = 0.9
so ur 2 numbers are : 0.1 and 0.9
9+12=m or 9+12=21
this is because when we start with m-9=12 we know that m is supposed to be the sum of 9 and 12.
if we check our work we will see this
9+12=21
9+12=21
m-9=12
21-9=12
The average rate of change from x = -1 to x = 2 is 2
<u>Solution:</u>
Given function is:
f(x) = 2x - 1
We have to find the average rate of change from x = -1 to x = 2
<em><u>The average rate of change is given as:</u></em>

<em><u>The average rate of change from x = -1 to x = 2 is given by formula:</u></em>

<em><u>Find f(2) and f( - 1)</u></em>
<em><u>Substitute x = 2 in given function</u></em>
f(2) = 2(2) - 1 = 4 - 1 = 3
<em><u>Substitute x = -1 in given function</u></em>
f( - 1) = 2(-1) - 1 = -2 - 1 = -3
<em><u>Substitute the values in above formula,</u></em>

Thus average rate of change from x = -1 to x = 2 is 2