13. You do -3 to the second power time 4 first. That equals -36. Than you do 7 to the second power that equals 49. 49-36 is 13.
Answer:
Step-by-step explanation:
f(x) = 3x² + 10x - 25
g(x) = 9x² - 25
To find (f/g)(x) divide f(x) by g(x)
That's
Factorize both the numerator and the denominator
<u>For the numerator</u>
3x² + 10x - 25
3x² + 15x - 5x - 25
3x ( x + 5) - 5( x + 5)
(3x - 5 ) ( x + 5)
<u>For the denominator</u>
9x² - 25
(3x)² - 5²
Using the formula
a² - b² = ( a + b)(a - b)
(3x)² - 5² = (3x + 5)(3x - 5)
So we have
Simplify
We have the final answer as
Hope this helps you
9514 1404 393
Answer:
Paul is using 1 grid = 100%; Rebecca is using 2 grids = 100%
Step-by-step explanation:
We assume that a full grid and half of another are shaded.
If 1 grid is taken to be 100%, then the total amount shaded is 100% +50% = 150%, as Paul says.
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If the two full grids are taken to be 100%, then the full shaded grid is 50% of the total, and the additional half-shaded grid is 25% of the total. That makes a total of 50% +25% = 75% of the total being shaded, as Rebecca says.
I hope this helps you
f (x)=4x-x/6
f (x)=23x/6
6.f (x)=23x
x=6.f (x)/23
f^-1 (x)=6.x/23
No sheet But if there was I could of found the answer
Steps look