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2 years ago

Find the measure of DAE

Mathematics

1 answer:

Paladinen [302]2 years ago

7 0

I can't see the picture, can you add it again so I can help?

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2 points

natima [27]

Answer:

4.9 feet

Step-by-step explanation:

First, we need to determine the height of the building using the following:

$L^2 = H^2 + B^2$

Where

H = Height of the building

L = Length of the first ladder = 20ft

B = Distance from the base of the building = 10ft

So, we have:

$20^2 = H^2 + 10^2$

$400 = H^2 + 100$

$H^2 = 400 - 100$

$H^2 = 300$

$H = \sqrt{300$

Next, is to determine the distance of the new ladder from the base of the building (B) using Pythagoras theorem using:

$L_2^2 = H^2 + B_2^2$

Where

$L_2 = 18$ --- Length of the second ladder

$H = \sqrt{300$ ----- Height of the building

So, we have:

$18^2 = \sqrt{300}^2 + B_2^2$

$324 = 300 + B_2^2$

$B^2_2 = 324 - 300$

$B^2_2 = 24$

Solving for B2, we have:

$B_2 = \sqrt{24$

$B_2 = 4.9$

8 0

2 years ago

Translate each into an algebraic expression

Makovka662 [10]

Answer:

A) 5k

Step-by-step explanation:

anything near a number like that is usually times. Like 7g would be 7xg!

5 0

2 years ago

Read 2 more answers

What's the estimate for 2-9

andrew11 [14]

The estimate between 2 and 9 is 7

5 0

2 years ago

Anyone know this? Help?

alisha [4.7K]

maybe a? because it’s reflecting off of the x axis

8 0

3 years ago

If an elevator travels 5 stories every 6 seconds, how many stories does it travel in 24 seconds?

Rufina [12.5K]

Divide 24 by 6 in order to see how many six second intervals there are. 24/6=4. Multiply 4x5 to show many stories the elevator travels. The answer will be 20 stories.

3 0

2 years ago

Read 2 more answers