Please help. Picture attached

Option C

Step-by-step explanation:

Given expression is .

Exponent of this expression is .

Option (A)

Since, exponents and coefficients of both the expressions are different.

They are not equivalent.

Option (B)

Here, exponent is with positive notation while in the original expression it is negative .

Therefore, both the expressions are not equivalent.

Option (C)

Both the expressions are equivalent.

Option (D)

Exponents of both the expressions are different.

Therefore, not equivalent.

Option (E)

Exponent of this expression is different from the original expression.

Therefore, not equivalent.

Option (C) will be the correct option.

£56

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