Answer:
Step-by-step explanation:
we know that
----> by trigonometric identity
we have
substitute
Remember that
If the sine of angle theta is positive, then the angle theta lie on the I Quadrant or II Quadrant
therefore
If the angle theta is on the I Quadrant the cosine will be positive
If the angle theta is on the II Quadrant the cosine will be negative
<span>3ab-9ab+7ab = ab
</span><span>A-
2(5x-3)=24
10x - 6 = 24
10x = 30
x = 3
</span><span>B-
5(2x+1)=50
</span>10x + 5 = 50
10x = 45
x = 4.5
(2.5*10^-8)(9*10^-10)
First, distribute a 1 so you can get rid of parentheses
2.5*10^-8*9*10^-10
Now, combine like terms
(2.5*9) (10^-8*10^-10)
2.25*10^-18
You divide 65 by 1.25 and get 52. that means 125% of 52 is 62.
52 is the answer.