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Molodets [167]
3 years ago
8

Which Equation represents a circle with a center located at (-2,2) and a circumference of 16(pie)

Mathematics
2 answers:
irinina [24]3 years ago
6 0
Your answer will be A
Agata [3.3K]3 years ago
4 0
First let's find the radius...

C=2πr

r=C/(2π)  and since C=16π

r=(16π)/(2π)=8

The standard form of the circle equation is:

(x-h)^2+(y-k)^2=r^2, where (h,k) is the location of the center of the circle so:

(x--2)^2+(y-2)^2=8^2

(x+2)^2+(y-2)^2=64
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Evaluate 1/6t+1/12 when t=1/2
max2010maxim [7]

Answer:

1/6

Step-by-step explanation:

You're welcome :)

6 0
3 years ago
The expression 8x2 − 144x 864 is used to approximate a small town's population in thousands from 1998 to 2018, where x represent
Rzqust [24]

The expression that is most useful for finding the year where the population was at a minimum would be 8(x − 9)² + 216.

Given expression 8x² − 144x + 864 is used to approximate a small town's population in thousands from 1998 to 2018, where x represents the number of years since 1998.

<h3>What is a quadratic equation?</h3>

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

Given expression is 8x² − 144x + 864

Let y = 8x² − 144x + 864

also,  y - 864 = 8x² - 144x

by Extracting common factor 8 on the right side

y - 864 = 8(x² - 18x)

Add (18/2)² on both sides, we get

y - 864 + 8(18/2)² = 8 (x² - 18x + 81²)

y - 864 + 648 = 8 (x² - 8x + 9)

on simplification

y - 216 = 8 (x - 9)²

y = 8(x - 9)² + 216

therefore, y = 8 (x - 9)² + 216

The expression that is most useful for finding the year where the population was at a minimum would be 8(x − 9)² + 216.

Learn more about a quadratic equation here:

brainly.com/question/2263981

8 0
2 years ago
HELP FOR BRAINLESS .... PLSSSSS
babymother [125]

Answer: A, B, D

A, B, and D are equations because an equation has an equal sign that connects two expressions together (i.e., equations have equal signs). In this case, only A, B, and D have equal signs.

3 0
3 years ago
What is -4d 3 + 28d 2 - 4d
Svetlanka [38]

Answer: 20d + 5

Step-by-step explanation:

First we need to combine like terms.

In this equation we can see that they're are 3 numbers containing the letter D we have -4, -4, 28.

We're going to combine -4 and -4 to get -8 and then combine -8 to 28 getting 20d

Afterwards we're going to combine 3, 2 equaling 5.

7 0
3 years ago
Someone help me with this please due tomorrow
Aleks04 [339]
1. (x + 6)(x + -12)
2. (x + 10)(x - 10) = x² - 100
3. (x - 6)(x + 17) = x² + 11x - 102
4. (-x + 8)(x - 5) = -x² + 13x - 40
5. (x + 13)(x + 8) = x² + 21x + 104
6. (x + 2)(x + 7) = x² + 9x + 14

6 0
3 years ago
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