2 years ago

Given the equation of the circle x2+6x+y2=7 use completing the square and factoring to write the equation in standard form

1 answer:

8 0

<span>x2+6x+y2=7

We add 9 to each side of the equation
</span>
x2+6x+y2 + 9 =7 <span>+ 9</span>

(x+3)**2 + (y+0)**2 = 16

(x+3)**2 + (y+0)**2 = 4**2 (Standard form)

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Answer:

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2 years ago

Divide the fraction and then simplify to its lowest form.

Andre45 [30]

Answer:

2/5

Step-by-step explanation:

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What is the surface area of the cube below?

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Step-by-step explanation:

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A certain television is advertised as a 53-inch TV (the diagonal length). If the width of

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The TV is 45 inches tall.

Step-by-step explanation:

The diagonal length of television = 53 inches

Width of TV = 28 inches

As TV is in rectangular or square shape, a diagonal will form a right triangle

Where,

Diagonal = hypotenuse = c = 53 inches

Width = base = b = 28 inches

Length = perpendicular = a

we will use pythagorean theorem to find the length.

$a^2+b^2=c^2\\a^2+(28)^2=(53)^2\\a^2+784=2809\\a^2=2809-784\\a^2=2025$

Taking square root on both sides

$\sqrt{a^2}=\sqrt{2025}\\a=45$

The TV is 45 inches tall.

Keywords: triangle, square root

Learn more about square root at:

#LearnwithBrainly

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2 years ago

Sarah draws a square that has a side that measures 35.2 mm. What is the perimeter of the square?

max2010maxim [7]

Answer:

140.8 cm2

Step-by-step explanation:

a spare has 4 sides so you need to times 35.2 by 4 which is 140.8

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