Answer:
m∠B = 70.0° (nearest tenth)
Step-by-step explanation:
<u>Sine Rule for Angles</u>

(where A, B and C are the angles and a, b and c are the sides opposite the angles)
Given:
Substituting the given values into the formula to find m∠C:




Interior angles of a triangle sum to 180°



Therefore, m∠B = 70.0° (nearest tenth)
Answer:
1 x 10^3
Step-by-step explanation:
Answer:
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
4b^2 - 16 =
4(b^2 - 4) =
4(b + 2)(b - 2)