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3 years ago

Here is the equation of a circle in standard form.

Mathematics

2 answers:

DENIUS [597]3 years ago

6 0

Answer:

(4,-8)

Step-by-step explanation:

Equation of a circle:

(x - h)² + (y - k)² = r²

Given:

(x - 4)² + (y + 8)² = 64

-h = -4

h = 4

-k = +8

k = -8

(h,k) = (4,-8)

Ipatiy [6.2K]3 years ago

3 0

Answer:

B. (4, -8)

Step-by-step explanation:

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Find the center of the circle that you can circumscribe about EFG, when E(2, 6), F(2, 2), and G(8, 2).

Vlad1618 [11]

After plotting all the points, the only one that makes sense is (4,3).

7 0

3 years ago

Enter an inequality that represents the graph in the box.

ANTONII [103]

The inequality that represents the graph in the box is

$y>-3x+6$

Given :

The graph of the linear inequality

Lets pick two points from the graph to frame the linear equation

Slope intercept form of the equation is

$y=mx+b$

Where m is the slope and b is the y intercept

y intercept is (0,6) from the graph

so b=6

Now we find out slope m using formula

Pick two points (0,6) and (2,0)

$slope = \frac{y_2-y_1}{x_2-x_1} \\m=\frac{0-6}{2-0} =-3$

m=-3

So the equation is $y=-3x+6$

Now we check the inequality sign by testing any point on shaded area

lets pick (4,0)

lets plug in 4 for x and 0 for y

$y=-3x+6\\0=-3(4)+6\\\\0=-6\\0>-6$

The inequality for the given graph is

$y>-3x+6$

we cannot use >= sign because we have dotted lines

Learn more : brainly.com/question/17203372

5 0

3 years ago

Which equation represents a line which is parallel to the line 7y - 4x = -14?

iVinArrow [24]

Answer: Any line with a slope of 4/7 and a y-intercept that is NOT -2

You should first turn the equation into y intercept form:
7y - 4x = -14; Add 4x from both sides
7y = 4x - 14; divide 7 from both sides
y = 4/7x - 2

Since you did not include choices, the answer will be the line with the slope 4/7 and without the y-intercept -2, because lines that are parallel will always have the same slope.

Example Answers: y = 4/7x + 2, y= 4/7x - 4
y = 4/7x + 10

4 0

2 years ago

16/5 divided by 5 equals?

Sveta_85 [38]

16 divided by 5 equals 3.2

4 0

3 years ago

Algebraic equations<br><img src="https://tex.z-dn.net/?f=x%20%2B%2020%20%3D%20100" id="TexFormula1" title="x + 20 = 100" alt="x

Setler [38]

Answer:

x = 80

Step-by-step explanation:

The whole reason algebra exists is to solve for a variable. Therefore, the only way to get x by itself or to see what x equals is to subtract 20 from both sides. Doing this will make x be all alone on one side of the equation and to see what x is.

x + 20 = 100

x + 20 -20 = 100 -20

x = 80

4 0

3 years ago