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Sergeeva-Olga [200]

2 years ago

12

a 28 foot ladder is leaning against a building.if the base of the ladder is 7 foot from the wall,what is the height of the build

ing

1 answer:

inysia [295]2 years ago

6 0

Answer:

4

Step-by-step explanation:

7 x 4 = 28 also 28 divided by 7 would be 4

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inn [45]

Answer:

detailed one

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3 years ago

Fifteen sprinters ran the 50-yard dash in an average of 9.5 seconds. Of those runners,3 ran the dash in 11.5 seconds. Find the a

dezoksy [38]

There might be a variety of averages for the 12 boys.

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3 years ago

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Find the area of a square whose side in 7 inches (remeber A=b×h)

viva [34]

The area is 14. your welcome

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3 years ago

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Find a cubic function that has the roots 5 and 3-2i

Zolol [24]

Answer:

$P(x)=x^3-11x^2+43x-65$

Step-by-step explanation:

If the complex number $3-2i$ is a root of a cubic function, then the complex number $3+2i$ is a root too. Thus, the cubic function has three known roots $5,\ 3-2i,\ 3+2i$ and can be written as

$P(x)=(x-5)(x-(3-2i))(x-(3+2i)),\\ \\P(x)=(x-5)(x^2-x(3-2i+3+2i)+(3-2i)(3+2i)),\\ \\P(x)=(x-5)(x^2-6x+9-4i^2),\\ \\P(x)=(x-5)(x^2-6x+9+4),\\ \\P(x)=(x-5)(x^2-6x+13),\\ \\P(x)=x^3-11x^2+43x-65.$

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3 years ago

The absolute value of 5.8 is _________.

Natali5045456 [20]

Answer:

5.8

Step-by-step explanation:

7 0

2 years ago

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