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2 years ago

Simplify - root (9+y)^2 if y <-10

Mathematics

1 answer:

nevsk [136]2 years ago

6 0

Answer:

− √ ( 9 + y ) 2 > 1

Explanation:

− √ ( 9 + y ) 2 , where y < − 10

Simplify the expression,

− √ ( 9 + y ) 2 = − ( 9 + y ) = − 9 − y

When y < − 10 , − y > 10

Subtract 9 from both sides,

− 9 − y > 1 Hence,

− √ ( 9 + y ) 2 > 1

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and

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so by the squeeze theorem,

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$\dfrac{x^2 + y}y = \dfrac{x^2}y + 1$

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Step-by-step explanation:

Please find the attachment.

Let h represent the height of the building.

We have been given that at 3:30 in the afternoon in mid-September the Kimball Tower casts a shadow about 290 feet long when the sun's rays come down at an angle about 35 degrees above the horizontal.

We know that tangent relates opposite side of a right triangle to its adjacent side.

$\text{tan}=\frac{\text{Opposite}}{\text{Adjacent}}$

Upon substituting our given values in above formula, we will get:

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Answer:

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