Step-by-step explanation:
You said the other one would be the last haha just kidding I'm glad to help.
16. 
First, get rid of that parenthesis.
Now multiply both sides by 2 so that you can isolate k
19. 
This is a pretty easy one. If you didn't know, 121/11 is actually 11 :)
Simply multiply by 3 to isolate r :)
Answer:
The exact value of sin A is opp/hyp = -12/13
Step-by-step explanation:
If A is in Quadrant IV then the "opposite side" is negative and the "adjacent side" is positive. Since sec A = hyp / adj = 13 / 5 and since opp^2 + adj^2 must add up to hyp^2, Therefore y = √(hyp^2 - adj^2), or
y = -√(13^2 - 25) = -√144 = 12.
The exact value of sin A is opp/hyp = -12/13
Answer:
5 because that my favorites number no cap
A. variable is an unknown number substituted in by a letter, such as h or s
coefficient is the number multiplied by the variable.....7n....coefficient is 7
constant is just a number with no variables attached.
7.50h + 0.20s + 40.....coefficient is 7.50 or 0.20....variable is h or s....constant is 40
B. 7.50h + 0.20s + 40 = her pay for the week
she works 25 hrs....so sub in 25 for h....she sells 300....so sub in 300 for s. ---- 7.50(25) + 0.20(300) + 40 = 287.50 <== her weekly pay
C. if she made 9 per hr instead of 7.50, the coefficient would change.
It would be 9.00h + 0.20s + 40
