Answer:
4.50
Step-by-step explanation:
sin 40°= opposite/hypotenuse
sin 40°= opp/7
0.6428= opp/7
multiply both sides by 7

4.4996= opp
to nearest hundredth = 4.50
Answer:

Step-by-step explanation:
Given

Required
Simplify the given expression

Start by applying law of indices


Divide numerator and denominator by 5

Hence; the expression is equivalent to 
Speed is d/t or distance/time so 70/3 = 23.33 mph
Answer:
sorry I don't know
Step-by-step explanation:
Answer:
i don't know
Step-by-step explanation:
i don't know