1 day = 24 hours:
58 days x 24 hours per day = 1,392 hours
1 hour = 60 minutes:
30 minutes / 60 minutes per hour = 0.5 hours.
1392 + 15 + 0.5 = 1,407.5 total hours.
Answer:
18
Step-by-step explanation:
Answer:
75000 meters
Step-by-step explanation:
1 km=1000 meters
Answer:
84 degrees.
Step-by-step explanation:
First, let's define what a complementary angle is. It's when two angles add up to 90 degrees. So we do 90-6=84 and 84+6 does in fact equal 90, so they are complementary.
Answer:
m∠BCD = 140°
Step-by-step explanation:
ABCD is cyclic quadrilateral. A property of cyclic quadrilateral states that the opposite angles of it sum up to 180°. Here:
m∠A + m∠C =180° and m∠B + m∠D = 180°
So, m∠A + m∠C =180°
m∠A = 40° (given in the question)
40° + m∠C = 180°
m∠C = 180° - 40° = 140°
∴m∠C = m∠BCD = 140°
