Find the domain for the rational function f of x equals quantity x minus 1 end quantity divided by quantity x plus 3 end quantity. (−[infinity], 1) (1, [infinity]) (−[infinity], −1) (−1, [infinity]) (−[infinity], 3) (3, [infinity]) (−[infinity], −3) (−3, [infinity])

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2

answer: can you give the

step-by-step explanation: