A^2 + b^2 = c^2
10^2= 100
15^2= 225
100+225= 325
square root of 325 is approximately 18
Unknown side is about 18 inches
Answer:
Step-by-step explanation:
10.
- x + 57 = 116
- x = 116 - 57
- x = 59
11.
- y = 180 - 112 = 68
- x= 180 - 2*68 = 44
12.
- 4x + 10 = 180 - 2*40
- 4x + 10 = 100
- 4x = 90
- x = 90/4
- x = 22.5
13.
Answer:
y=3x+5
Or option A
Step-by-step explanation:
Along the x-axis is the number of songs purchased. Along the y-axis is the amount of money left.
Answer:
∠ A ≈ 16.67°
Step-by-step explanation:
Using the Sine rule in Δ ABC
=
, substitute values
=
( cross- multiply )
16 sinA = 8 sin35° ( divide both sides by 16 )
sin A =
, thus
∠ A =
(
) ≈ 16.67° ( to 2 dec. places )