Answer:
sin a = -3/5
Step-by-step explanation:
sin^2(a)+cos^2(a)=1
sin^2(a)+ (4/5)^2 = 1
sin^2(a) = 1 - 16/25 = 9/25
sin a = 3/5 ( in Quadrant 1)
In quadrat IV the sine is negative
so sin a = -3/5
#25
210 / 0.42 = 500
answer: 500 people were surveyed
#18
22.50 x 1.15 = 25.875
answer: $25.88 (third choice)
#19
550 x 0.07 = $38.50
answer: $38.50 (third choice)
#20
$160 x 0.4 = $64
answer: $64 (third choice)
<h3>
Answer: H = {3, 5, 7}</h3>
Explanation:
We simply list any odd number that is between 2 and 8. The term "roster form" can be thought of as listing the roster of a sports team (eg: baseball). So instead of describing what the numbers look like, we list out the numbers themselves. Those numbers being 3, 5 and 7.
Something like {2,4,6,8} is ruled out because we're dealing with odd numbers only.
Answer:
x = 200
Step-by-step explanation:
-
= 30
- 10 = 30
= 40
x = 200
Answer:
Everything looks good and correct
Step-by-step explanation: