All categories

2 years ago

HELP!! joels apartment building is 42 ft tall and casts a shadow of 20ft. If Joel is 6 ft tall, how long is his shadow

Mathematics

1 answer:

zhenek [66]2 years ago

5 0

Step-by-step explanation:

an object and its shadow create a right-angled triangle.

2 objects and their shadows create 2 similar right-angled triangles.

that means the angles are the same, and the side lengths of one triangle all correlate with the corresponding side lengths of the other triangle via the same factor.

so,

42 × f = 6

f = 6/42 = 1/7

the length of Joel's shadow is then

20 × f = 20 × 1/7 = 2.857142857... ft

You might be interested in

Which human organ is shown in the image? Heart Liver Pancreas Stomach

TiliK225 [7]

Answer: Pancreas

Step-by-step explanation:

The Pancreas is shown.

Please leave mark as brainliest if I helped you out. :)

8 0

1 year ago

When the product of 6 and the square of a number is increased by 5 times the number, the result is 4.

il63 [147K]

Let $x$ be the unknown number. Its square is $x^2$ . The product of 6 and the square of the number is $6x^2$ . Increase this by 5 and you get $6x^2+5$ .

If this has to equal 4, you have $6x^2+5=4$

4 0

3 years ago

Read 2 more answers

PLEASE HELP ME!!!

Harman [31]

Send a better photo or tell me what I’m suppose to be answering

8 0

3 years ago

Mitch runs 4 miles in 2x + 3 minutes, and Joy

Nookie1986 [14]

I don’t know the 8 percent of what you do

4 0

3 years ago

(6x+2)^2=36x^2+Bx+4 How Would You Answer That. I'm Not That Good At Algebra.

Verizon [17]

Let's multiply out the equation 6x+2 times 6x+2 using the square. Draw a 2 by 2 bow and put the equation across the bottom and verically. Multiply across to get this. 6x times 6x =36x^2 6x times two =12x do it again and get 12x. 2*2=4. That means x would equal 24.

8 0

3 years ago