Solve for x in the equation x^2-12x+36 = 90

x = 6 +3√ 10 , 6 − 3 √ 10

decimal form

X= 15.48683298...

yes yes yes yes yes yes yes yes yes

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.