Answer:
It's the first one.
hope it helps :)
Step-by-step explanation:
You would use the simple format SOH-CAH-TOA
SOH: sine = opposite/hypotenuse
CAH: cosine = adjacent/hypotenuse
TOA: tangent = opposite/adjacent
----
So for this problem to find c you would use this equation:
sin42= c/7
7sin42=c
c=4.68
Then for d you would use this equation:
tan48=d/4.68
4.68tan48=d
=5.197
Hope this helps :)
the cost of 3 scrunchies is 3.75 $
the cost for 1 scrunchies is 3.75/3 = 1.25 $
the cost for 8 scrunchies will be = 1.25 x 8 = 10 $
thus, the answer is 10 $
Answer:
a = 
Step-by-step explanation:
given
=
( cross- multiply )
ac = 12 ( divide both sides by c )
a = 
Answer:
7m
Step-by-step explanation:
Given
- 9(- 5k + 3m) + 9m - 5(- 5m + 9k) ← distribute both parenthesis
= 45k - 27m + 9m + 25m - 45k ← collect like terms
= 7m