The sum of two polynomials is 10a2b2 -8a2b + bab2 - 4ab + 2. If one addend is -5a2b2 + 12a²b - 5, what is the
other addend?
15a²b2 - 200²b + bab2 - 4ab + 7
5a²b2 - 20a2b2 + 7
5a²b2 + 4a²b2 + bab - 4ab - 3.
-15a²b2 + 20a²b2 - 6ab + 4ab - 7
Done

answer: 88

step-by-step explanation:

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.