Select the correct answer. What is the value of x in the equation 25x2 = 16?
ОА.
5
+ 4
OB. +4
oc. + 1
16
OD.
D.
+25

C

Step-by-step explanation:

25x^2 = 16

__

25 25

1)divide both sides by 25 to isolate the x.

sqrt (x^2) = (16/25)

2) sqrt both sides to get what x =

x = sqrt(16/25)

3) Simplify

x = +- sqrt(4/5)

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