<h3>
Answer: -10</h3>
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Work Shown:
First we need to evaluate f(3)
f(x) = -x^2 + 2x
f(x) = -(x)^2 + 2(x)
f(3) = -(3)^2 + 2(3) ... replace every x with 3; apply PEMDAS to simplify
f(3) = -9 + 6
f(3) = -3
Then we subtract 7 from both sides
f(3) - 7 = -3 - 7
f(3) - 7 = -10
Answer:
37
Step-by-step explanation:
you subtract the amount of wood he'll be adding because that isnt what we're looking for. That should equal 407 square feet then you divide that by 11 which equals thirty seven
We are given with
samples for a survey - 120 students
cellphone with company x - 60 students
cellphone with company y - 36 students
no cellphone - 24 students
The approximation is simply determined by dividing 36 with the samples from the survey
36 / (120) = 30%
18m^2
area of a trapezoid = (a+b)/2 * h, where a and b are bases 1 and 2, and h is height
(4+8)/2 * 3
= 12/2 * 3
= 6 * 3
= 18