50°
angle CXF and DXF are complementary which means they add to 90°
to 40° + x = 90
x = 50
C.
Because deceased means minus, so you eliminate A. Product means multiplication so 3n-7
Answer:
You need to stop relying on this website.
Step-by-step explanation:
Anytime you find a challenging problem you will automatically go to this website thus not gaining any intelligence.
9514 1404 393
Answer:
A 7/25
Step-by-step explanation:
The cosine of an angle is equal to the sine of its complement. In a right triangle, angle A is the complement of angle B. So, ...
cos(A) = sin(B)
cos(A) = 7/25
