3 years ago

F(x) =2x^2+4x+5 Find: (a+h)

Mathematics

1 answer:

larisa [96]3 years ago

5 0

Answer : a = -2, h = 1

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3 years ago

Find the center of the circle whose equation is x² + y² = 4.

Varvara68 [4.7K]

Answer:

The center of circle is $(0,0)$

Step-by-step explanation:

We need to find the center of the circle of the equation $x^{2}+y^{2}=4$

Since, the general equation of circle is $(x-h)^{2}+(y-k)^{2} = r^{2}$

Where (h,k) is center of circle and r is radius.

Re-write the circle equation is $x^{2}+y^{2}=4$ as,

$x^{2}+y^{2}=2^{2}$

Compare $x^{2}+y^{2}=2^{2}$ with $(x-h)^{2}+(y-k)^{2} = r^{2}$

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3 years ago

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You need to cover the playground of a child development center with mulch. the playground is 125 feet long and 60 feet wide. you

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The answer is 139 cubic yards

This mulch will be of cylindrical shape.
The volume (V) of a cylinder is:
V = l · w · h (l - length, w - width, h - height (in our example, height = depth)

It is known:
l = 125 feet
w = 60 feet
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V = l · w · h = 125 · 60 · 0.5 = 3750 feet³

Since 1 cubic foot is 0.037 cubic yards, 3750 cubic feet are 139 cubic yards:
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3 years ago

What is the equation of a line that passes through (1,2) and has a slope of 7?

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ANSWER: y=7x-5 i put it in a graphing calculator

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3 years ago

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The common denominator is 35

Multiply 5/7 top and bottom by 5

Multiply 3/5 top and bottom by 7

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4 years ago

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