Answer:
x ≈ 57.8°
Step-by-step explanation:
using the Sine rule in the triangle
=
( cross- multiply )
8 × sinx = 11 × sin38° ( divide both sides by 8 )
sinx =
, then
x =
(
) ≈ 57.8° ( to 1 dec. place )
Answer:
4b(2a-3)
Step-by-step explanation:
factorize by using hcf
Answer: v = 793.77 mph
Step-by-step explanation: Linear speed of a circular movement is calculated by using the formula:
v = ω.r
where
ω is angular velocity
r is radius of the path
<u>Angular</u> <u>velocity</u> is the rate of change of the angular position of an object with respect of time, i.e., is how fast an object changes its angular position with time:

The Earth takes 24 hours to complete a rotation, then angular velocity:

0.262 rad/h
At a location 40° north, radius is 3033.5 miles, so:
v = 0.262*3033.5
v = 793.77
<u>At latitude of 40°north, linear speed is </u><u>793.77mph</u>.
X=number of years that Ethas was 5 times older than his son.
we suggest this equation:
40-x=5(12-x)
40-x=60-5x
-x+5x=60-40
4x=20
x=20/4=5
answer. 5 years.