Answer: explain the meaning of
Step-by-step explanation:
Answer:
Step-by-step explanation:
- 1/a + 1/b =
- b / ab + a / ab =
- (b + a) / ab
The common denominator is ab
Correct choice is D
(2x^2-x^2)= x^2
(1+7) = 8
X^2 + 8
Answer:
A
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos X =
=
=
, then
∠ X =
(
) ≈ 44° ( to the nearest degree ) → A