Call the angles of depression D.

then tan(D)=20/30, or I

arctan(tan(D)) = arctan(⅔)

D=33.690. A is the answer

your calculator probably uses tan^-1 rather than arctan

8 0

3 years ago

Read 2 more answers

a rectangular pool is 20 ft wide and 50 ft long. the deck is the same width all the way around the pool. the total area of the d

Alex

First, we need to get the total area of the rectangular pool.
Area = l * w
Area = 20 ft * 50 ft
Area = 1000 ft^2

Then the deck is 456 ft^2 with the width of 20ft, the same as the rectangular pool.

Area = l * w
456 = l * 20
l = 456 / 20
l = 22.8 ft.

So the walkway is 22.8ft wide.

3 0

2 years ago

What is the third stage of the rational model of decision making?

poizon [28]

Evaluate alternatives and select a solution. Hope this helps

6 0

2 years ago

Graph and solve y+3X=5

shtirl [24]

$y+3x=5\\\\y=-3x+5\\\\x=0\ \ \ \Rightarrow\ \ \ y=-3\cdot 0+5=5\\\\y=0\ \ \ \Rightarrow\ \ \ 0=-3x+5\ \ \ \Rightarrow\ \ \ 3x=5\ \ \ \Rightarrow\ \ \ x= \frac{5}{3}$

$the\ graph\ in\ annex$

4 0

3 years ago