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3 years ago

15

Jason is putting in a new circular shaped fire pit in his backyard.The diameter of the fire pit is 8 feet. What is the area of t

he backyard does the fire pit have?

1 answer:

lesya [120]3 years ago

3 0

Pi * r^2 = 16pi
Thank you hope this helps

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DeSean throws a ball up with an initial vertical velocity of 30 ft/s from a platform that is at ground level. How long will the

max2010maxim [7]

h=h+vi t-4.9t^2

h=h=0

0=vi t-4.9t^2= t(vi-4.9t)

t= 30/4.9 m/s

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3 years ago

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A school paid $31.25 for each calculator. If the school spent $500 on calculators, how many did the school buy?

Sedbober [7]

Answer:

A school paid $31.25 for each calculator.

If the school spent $500 on calculators, the number of purchased calculators:

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Solution to the system of inequalities shown below:

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Letter b. (2,5) is the only one that when plugged into the inequality above still makes the inequality true because 7<=7 and 5>2

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3 years ago

What are the center and radius of the circle defined by the equation x^2 + y^2 -6x + 4y + 4=0

Sloan [31]

The equation of a circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - a coordinates of the center

r - a radius

$x^2+y^2-6x+4y+4=0\ \ \ |-4\\\\x^2-2\cdot x\cdot3+y^2+2\cdot y\cdot2=-4\ \ \ |+3^2\ |+2^2\\\\\underbrace{x^2-2\cdot x\cdot3+3^2}_{(a-b)^2=a^2-2ab+b^2}+\underbrace{y^2+2\cdot y\cdot2+2^2}_{(a+b)^2=a^2+2ab+b^2}=-4+3^2+2^2\\\\(x-3)^2+(y+2)^2=3^2$

Answer:

the center: (3, -2)

the radius: 3

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musickatia [10]

Step-by-step explanation:

<DBA=180 since it is a straight line

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