Simplify the following expression:
- 10x + 15 - 3x + 2
a: -7x+17
b - 13x+17
c 13xsquared + 17
d: 13xsquared + 13

Step-by-step explanation:

Add the like term

Here -10x , -3x are like terms

       15 , 2 are like terms

Bring the like terms together.

-10x + 15 - 3x + 2 = -10x - 3x +15 +2

                           = -13x + 17

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet