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2 years ago

NEED ANSWERED IN THE NEXT 5 HOURS!!! WILL GIVE BRAINLIEST!!

Mathematics

1 answer:

ElenaW [278]2 years ago

4 0

Answer:

BC/QR=BA/QP=AC/RP

Step-by-step explanation:

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A tree is 14 feet tall. it casts a shadow 20 feet long. if nearby building casts a shadow 15 feet long, how tall is the building

pentagon [3]

My guess is that the building is 10 feet tall

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3 years ago

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Please help me with this problem

lisov135 [29]

I know it is a little messy but the answers are
For the first one = (0,7.5)
Second one = (0, 5 2/3)

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3 years ago

SOMEBODY PLEASE HELP!! Find the missing value. Show your work please.

anzhelika [568]

The answer for A would be 8.5 because if you use a^2+b^2=c^2 you would have 12^2 which equals 144 and you would divide that by two to get 72 and then take the square root to find the side length

The answer for be would be 45 because the sum of all angles in a triangle is 180 and you already know one is 90 and 180-90=90 and because this is an isosceles triangle you know the two bottom angles are equal so 90/2=45 <span />

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4 years ago

How do you solve this

evablogger [386]

Multiply 5 and 9 which is 45.

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4 years ago

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a 9ft ladder is placed 4.5 feet from the base of a wall. How high up will the ladder reach? Round to the nearest hundredth.

spin [16.1K]

Answer:

$\huge\boxed{7.79 \ \text{feet}}$

Step-by-step explanation:

We know that we have a 9 foot long ladder resting upon a wall, with an unknown height, but the ladder is 4.5 feet away from the wall.

This can be represented as a triangle, where x is the unknown side.

| \

x | \ 9

| \

|_____\

4.5

We can use The Pythagorean Theorem to find the value of x. The theorem states that $a^2+b^2=c^2$ , where a and b are the lengths of the legs and c is the length of the hypotenuse.

However, we already know the hypotenuse and one leg. Therefore we can substitute inside the equation to find the missing value.

$a^2 + 4.5^2 = 9^2\\\\a^2 + 20.25 = 81\\\\a^2 = 60.75\\\\a \approx 7.79$

Hope this helped!

7 0

3 years ago