Answer: option D
Step-by-step explanation:
Remember the cosine identity:

Given the right triangle DFE shown in the image, you can identify that the adjacent side and the hypotenuse for the angle F of this triangle are:

Now you can substitute values into
and then reduce the fraction.
THerefore you get:
3 1/4 inches long,
1/2 inch in 1 month1 inch in 2 months
The answer is, 3 1/4 inches + 1 inch = 4 1/4
B. 2
if any other number was in there i dont think it would work because its neg
Answer:
D
Step-by-step explanation:
12/6 is 2 and the the exponents when you are dividing you just subtract. so 9-3 = 6 which makes it x^6.