Step by step;
Red:black
25/75
25 to 75
25/75 / 5/5 = 5/15 you can divided that number me more time (divid it by 5/5) which give you your answer of 1:3

3 0

3 years ago

What are the outputs of the function below?

Fed [463]

You forgot to add the answer choices.
May I please have brainliest?

8 0

3 years ago

A movie projector positioned 34 feet from a wall creates an image that is 8 feet wide on the wall. if a screen is placed 5 fee

inessss [21]

Answer: 1.48ft

Step-by-step explanation:

The angle, θ, at which the projector "spreads" the image is constant.

We know that:

"A movie projector positioned 34 feet from a wall creates an image that is 8 feet wide on the wall"

We can think this problem as the image in the end, two triangle rectangles with cathetus equal to 34 ft, and 8/2 ft = 4ft

Then this angle θ can be calculated because we know the two cathetus of this triangle:

Tan(θ) = (opposite cathetus)/(adjacent cathetus)

Tan(θ) = 4ft/34ft

θ = Cotan(4/34) = 8.46°

Now, if you move the place the projector 5ft from the wall, now the adjacent cathetus is 5ft instead of 34.

Then we have:

Tan(8.46°) = x/5ft

Tan(8.46°)*5ft = x = 0.74ft

But remember that the actual width of the image will be two times that, so the width is:

W = 2*0.74ft = 1.48ft

5 0

4 years ago