Geometry: find the value of x. Round to the nearest tenth. How do I do this? screenshot attached

Step-by-step explanation:

To solve for x, remember the right triangle trigonometry ratios (soh-cah-toa).

If we look at the angle given (θ), then we see that 36 is adjacent or next to the 70° angle. x is the hypotenuse because it is opposite the right angle. So, we have to use cosine (adjacent and hypotenuse).

Cross multiply. (Multiply the first numerator by the second denominator. Then, multiply the first denominator by the second numerator).

Since we want to solve for x, we must isolate the variable. Divide both sides by the cosine of 70.

Round to the nearest tenth. The 5 in the hundredth place tells us to round the 2 to a 3.

x is about 105.3

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8