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jek_recluse [69]

3 years ago

7

The rug in Alan's room has a area of 18 square feet. He is planning to buy another rug that is twice as long and twice as wide.

What is the area of the new rug?

1 answer:

maxonik [38]3 years ago

6 0

Its 324 due to the fact that 18 would come out to be 9 so twice of 9 is 18 and 18 times by 18 equals 324

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Determine the period.

Aliun [14]

Answer:

T = 3

Step-by-step explanation:

To find the period, find the distance it takes to complete one cycle.

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2 years ago

In a canoe race, team a is traveling 6 miles per hour and is 2 miles ahead of team

malfutka [58]

Given that <span>In a canoe race, team a is traveling 6 miles per hour and is 2 miles ahead of team b.

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I will mark best answer brainliest

Hunter-Best [27]

Answer: -1

Step-by-step explanation:

-8 (-8x - 6) = -6x - 22

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2 years ago

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The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. What is the approximate

Korolek [52]

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3 years ago

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What is the equation of a circle whose center at (-5, -2) and radius is 2?

aliya0001 [1]

The equation of a circle whose centre ( $-5,-2$ ) and radius $2$ is $x^{2}+y^{2}+10x+4y+25=0$

What is equation of a circle?

A circle is a closed curve drawn from a fixed point called centre of the circle. The distance between the centre of the circle and the arc of the circle is called the radius of the circle.

The equation of a circle with centre $(h, k)$ radius $r$ is

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

Given center = $(-5,-2)$ and Radius = $2$

Put the Given value in the equation:

= $(x-(-5))^{2} +(y-(-2))^{2} = 2^{2}$

= $(x+5)^{2} +(y+2)^{2}=2^{2}$

= $(x^{2} +10x+25)+(y^{2}+4y+4)= 4$

= $x^{2} +y^{2}+10x+ 4y+ 29 = 4$

= $x^{2} +y^{2}+10x +4y+ 29-4=0$

= $x^{2} +y^{2}+10x+4y+25=0$

So, the equation of the circle whose centre is $(-5,-2)$ and Radius $2$ is

$x^{2}+y^{2}+10x+4y+25=0$

To read more about the equation of a circle. you can follow:

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1 year ago