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4 years ago

The tree in Anna’s backyard is 14.2 ft tall. How tall is this in inches? Do not round your answer.

Mathematics

1 answer:

balu736 [363]4 years ago

4 0

Answer:

170.3999995671840081382039 inches.

Step-by-step explanation:

because 1 ft is equal to 11.9999999695200000186048 inches that's why 14.2 ft. are equal to 170.3999995671840081382039..

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Hey I have a question. What is faithfulness in your opinion

Vsevolod [243]

Answer:

The quality of being faithful

Step-by-step explanation:

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4 years ago

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What is y squared + 2 y - 35 / y + 7

lutik1710 [3]

Answer:

y - 5

Step-by-step explanation:

Given

$\frac{y^2+2y-35}{y+7}$

Factorise the numerator

y² + 2y - 35 = (y + 7)(y - 5), thus fraction can be expressed as

$\frac{(y+7)(y-5)}{y+7}$

Cancel the factor (y + 7) on the numerator/ denominator, leaving

y - 5

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4 years ago

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A cylinder has diameter of 4ft and a height of 9ft. Explain whether halving the diameter has the same effect on the surface area

elena55 [62]

Answer:

See Below

Step-by-step explanation:

The surface area of cylinder is given by the formula:

$SA=2\pi r^2 + 2\pi r h$

Where

r is radius ( diameter is 4, so radius is 4/2 = 2)

h is height ( h = 9)

Lets find original surface are:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (2)^2 + 2\pi (2) (9)\\SA=8\pi +36\pi\\SA=44\pi$

<u>Halving diameter:</u>

diameter would be 4/2 = 2, so radius would be 2/2 = 1

So, SA would be:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (1)^2 + 2\pi (1) (9)\\SA=2\pi +18\pi\\SA=20\pi$

<u>Halving height:</u>

Height is 9, halving would make it 9/2 = 4.5

Now, calculating new SA:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (2)^2 + 2\pi (2) (4.5)\\SA=8\pi + 18\pi\\SA= 26\pi$

Original SA is $44\pi$ ,

Halving diameter makes it $20\pi$

Halving height makes it $26\pi$

So, halving diameter does not have same effect as halving height.

5 0

3 years ago

A storefront window has 154 square feet of glass. the window is 7 feet tall. what is the perimeter of the window?

goblinko [34]

The area of the of the storefront window made of glass in question is = 154 square feet
The length of the glass window that is given in the question is = 7 feet
Let us assume the Width of the glass window in question to be = x feet
Then
Area = Length * Width
154 = 7 * x
7x = 154
x = 154/7
= 22 feet
So we come to know that the width of the glass window in question is 22 feet.
Now
Perimeter of the glass window = 2 ( Length + Width)
   = 2 (7 + 22) meters
   = 2 * 29 meters
   = 58 meters.
So the perimeter of the glass window as can be seen from the above deduction is 58 meters.

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3 years ago

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