B. 60°
∠A = 80°
∠B = ∠A/2 = 80°/2 = 40°
∠C = ?
Sum of all interior angles in a triangle = 180°
180° - 80° - 40° = 60°
∴ the measure of ∠C is 60°.
Answer:
Correct
Explanation:
Trust meee. Taking the quiz now:)
When a body is moving in circular path at a
distance r from its center its velocity at any
instant will be directed tangentially. This is
what we call tangential velocity. It is
calculated as follows:
Vt=r(w)
where w = 5 rev/s (2m rad / rev) = 31.42
rad/s
Vt = 0.24(31.42) = 7.5 m/s
The answer is A. Its relative cheapness compared to its renewable counterparts is what allows nonrenewable resources to continue to dominate the market. Also, you can conclude this answer through elimination of the other three choices. Nonrenewable resources actually have a higher impact on the environment because of its contribution to greenhouse gas emissions. Also, it being used up rapidly and contributing to global warming are both true, but are disadvantages rather than advantages.
