What is the sum? 2/x2 +4/x2
6/x2
6/x4
6/2x2
8/x2

Step-by-step explanation:

Let's review:

The denominators for each fractions are the same, therefore no additional steps are needed and we'd just add the numerators.

4 + 2 = 6

Hence, the answer is

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

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