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pshichka [43]
2 years ago
9

a ladder 15 feet tall is placed 7 feet from a building that is perpendicular to the ground. how tall is the building?

Mathematics
2 answers:
Radda [10]2 years ago
3 0

Answer: who old are you

Step-by-step explanation:

Black_prince [1.1K]2 years ago
3 0

Answer:

13 feet

Step-by-step explanation:

the part of the ladder on the ground creates a right angle with the building where the base is 7 feet and the hypotenuse is 15 feet

we can use the pythagorean theorem to solve for the height of the building

let 'b' = height of building

7² + b² = 15²

49 + b² = 225

b² = 176

b = \sqrt{176}

\sqrt{176} = \sqrt{4}\sqrt{4}\sqrt{11} = 2·2\sqrt{11}

b = 4\sqrt{11} which is approximately 13.3 feet

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Step-by-step explanation:

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Find the value of x when 6-3x=5x-10x+4
tatuchka [14]

Answer:

x= -1

Step-by-step explanation:

6-3x=5x-10x+4

6-3x=-5x+4

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7 0
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Can someone answer this for me im really bad at math 6x+17
Maslowich

Answer:

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PLEASE ANSWER ASAP FOR BRAINLIEST!!! A triangle has side lengths of 17 cm and 8 cm. Which could be the value of the third side,
denis23 [38]

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a 400 g of a liquid of density 1.6g/cm3 is made from mixing liquids of density 1.2g/cm3 and 1.8g/cm3 find the mass of the liquid
gogolik [260]

Answer:

133.33g

Step-by-step explanation:

Let the:

Mass of 1.2g/cm³ of liquid = x

Mass of 1.8g/cm³ of liquid = y

From our Question above, our system of equations is given as:

x + y = 400........ Equation 1

x = 400 - y

1.2 × x + 1.8 × y = 1.6 × 400

1.2x + 1.8y = 640..... Equation 2

We substitute, 400 - y for x in Equation 2

1.2(400 - y) + 1.8y = 640

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Therefore, the mass of the liquid of density 1.2g/cm³ is 133.33g

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