We know that
if sin A=cos B
then
angle A and angle B are complementary angles
so
A+B=90°
in this problem
(x+21)+<span>(2x+21)=90-------> 3x+42=90-------> 3x=48-----> x=16</span>°
It’s equal to 9 may I get brainiless
Answer:
Choice One (x + 24)
Step-by-step explanation:
Since, this is addition, your first choice would be the most logical.
Hope this helps :)
It already tells you that he ran 100 meters so what you need to do is convert kilometer to meter and centimeter to meter.
1 kilometer is is 1000 meters. 1 meter is 100 centimeters.
So 5000 centimeters is 50 meters.
Add 100 + 50 + 1000 =
1,150 meters :)
