247 / 13 = 323 / x....247 to 13 hrs = 323 to x hrs
cross multiply
(247)(x) = (323)(13)
247x = 4199
x = 4199 / 247
x = 17 hrs <===
And x = 6. Which statements are true? Check all that apply. 7x + 4 and 3x + 5 + 4x = 1. When x = 2
Answer:
Below.
Step-by-step explanation:
In factor form this is:
f(x) = a(x + 3)(x + 1)(x - 2) where a is a number to be found.
As it passes through (3, 6) we have:
6 = a(3 + 3)(3 + 1)(3 - 2)
24a = 6
a = 1/4.
So f(x) = 1/4(x + 3)(x + 1)(x - 2)
In general form this is:
f(x) = 1/4 x^3 + 1/2 x^2 - 5/4 x - 3/2
Answer: x^2-5x-84
Step-by-step explanation:
(x+7)(x-12)=
x*x+(-12*x)+7x+(-84)=
x^2-12x+7x-84=x^2-5x-84