Answer:
(A) 21
Step-by-step explanation:
5x-15 needs to equal 90 since it is a right angle and 21 makes that true

Answer:
6/5
Step-by-step explanation:
Put 1 where x is and solve.
3·1 -5y = -3
-5y = -6 . . . . . subtract 3
y = 6/5 . . . . . . divide by -5
The value of y is 6/5 when x = 1.
<span>Yes
△RWS ~ △QWT
----------------------</span>
Answer:
Step-by-step explanation:
in quadrant 1 cos and sec are positive.
cos(θ)=√(1-sin²θ)=√(1-(12/13)²)=√((169-144)/13²)=5/13
secθ=13/5
Answer:
-6 gal/min
Step-by-step explanation:
(-4 1/2 gal)/(3/4 min) =
= (-4.5 gal)/(0.75)
= -6 gal/min
Answer: -6 gal/min