1st :The angle of depression 30° = the angle of elevation (from the truck to the height of the building.

2nd :
cos 30° = (adjacent side)/(hypotenuse)
cos 30° = x/100, but cos 30°= (√3)/2

(√3)/2 = x/100 and x = (100√3)/2

and x = (50.√3) = 86.60 m

8 0

3 years ago

Read 2 more answers

8 more than a number is equal to 40

dem82 [27]

Answer:

n+8 = 40

n=32

Step-by-step explanation:

Let the number be n

8 more than means

n+8

is equal to

n+8 =

n+8 = 40

We can solve this by subtracting 8 from each side

n+8-8=40-8

n = 32

The number is 32

8 0

3 years ago

The width of the rectangle is 75% of its length. The length is 8 cm. What is the width of the rectangle?

hjlf

Given :

The length of the rectangle, l = 8 cm/

The width of the rectangle, w = 75% of 8 cm

$= \frac{75}{100} \times 8$

$=\frac{15}{20} \times 8$

= 0.75 x 8

= 6

Therefore, the width of the rectangle is 6 cm.

6 0

3 years ago