3 years ago

Expand and simplify (2x2 + 3)(4x + 5) - 8x(x - 2)

Mathematics

1 answer:

Bezzdna [24]3 years ago

4 0

I think the answer is 2x+12

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If you place a 26-foot ladder against the top of a 10-foot building, how many feet will the bottom of the ladder be from the bot

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Answer:

24 foot

Step-by-step explanation:

We are given that

Length of ladder=26 foot

Height of building=10 foot

We have to find the distance between the bottom of ladder and the bottom of building.

Pythagorus theorem:

$(Hypotenuse)^2=(Base)^2+(Perpendicular\;side)^2$

We have hypotenuse =AC=26 foot

Perpendicular side =AB=10 foot

Base=BC

Substitute the values in the given formula

$(26)^2=(10)^2+(BC)^2$

$676=100+(BC)^2$

$(BC)^2=676-100=576$

$BC=\sqrt{576}=24$ (Take positive because length is always positive)

BC=24 foot

Hence, the bottom of the ladder will be 24 foot from the bottom of the building.

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