Answer: y = 90 x = 29
Step-by-step explanation:
The length of the support post is 40 ft.
<u>Solution:</u>
Given, the height of the wall is 20 ft; support post forms 30 degree
Refer the attached image
Let us name the triangle as ABC where AB is the wall (opposite side) of 20 ft and
is 30 degree (
) and AC is the length of the post.
To find: The length of the post (AC)
we know the formula,
(trigonometric formula)
On substituting the values we get,

The value of sin 30 degree is 0.5

Step-by-step explanation:
13.70 square inches of the box is empty
Answer:
I got it.
Step-by-step explanation:
-12a - (-15b) + (-3c)