Simplify your answer as much as possible

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

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.