Answer:
<B = 70°
Step-by-step explanation:
First we need to find x, lets plugin these two equations.
2x - 30 = x + 20
Then find like terms
2x = x + 50 =
x = 50
Then we plugin 50 for x
2(50) - 30 =
100 - 30 = 70
<B = 70°
Answer:
She wanted to know how long it took her to complete one set of 30 jumping jacks on average, and the results were 28 seconds and 30 seconds. 33 seconds are up 3 minutes 35 seconds
Step-by-step explanation:
35 + 25 + x = 85
60 + x = 85
x = 25cm
The third side is 25 cm
Answer:
-3*23
Step-by-step explanation:
a) Due to you have a right triangle, in order to calculate the value of d, use the Pythagorean thorem:
Hence, the distance d is approximately 63.2m
b) To find the angle of elevation, use the sine function of θ, as follow:
Hence, the angle of elevation is approximately 19.8°