Answer:
The answer is 8
Step-by-step explanation: Use the KCF method.
Keep the first number, change the second sign into multiplication, and flip the numbers on the third part, so 4/1. Now multiply 2 and 4.
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:
the estimated increase in height of baby each year would be 3 inches.
ANSWER

EXPLANATION
The polar form of a complex number ,

is given by:

where

The given complex number is:




And



Hence the polar form is :

5.692 is a terminating decimal because the decimal stopped at the digit of 2.
Hope this helps!