Answer:
He can run 137.5 ft
Step-by-step explanation:
We can use a proportion to solve
55 ft x ft
--------------- = -----------------
10 seconds 25 seconds
55 *25 = x*10
1375 = 10x
Divide each side by 10
1375/10 = 10x/10
137.5 = x
He can run 137.5 ft
X=0
i simply just did
x+7=x^2+2x+7
-7 -7
x=x^2+2x
then i just isolated the variable. the only number that could fit was 0
Answer:
Below in bold.
Step-by-step explanation:
f(x) = x(18x + 4)
f(x) = 18x^2 + 4x
Antiderivative = 18 * (x^2+1)/(2 + 1) -+4x(1+1) / (1+1) + C
= 18x^3 / 3 + 4x^2 / 2 + C
= 6x^3 + 2x^2 + C.
Checking by differentiating:
f'(x) = 6*3 x^(3-1) + 2*2x^(2-1)
= 18x^2 + 4x
= x(18 -+4)
The correct answer is C) Segment BD = 20.
