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2 years ago

Write the standard form of the equation of the circle with radius 4 and center (−7,−6).

Mathematics

1 answer:

olasank [31]2 years ago

4 0

The equation of a circle is written as (x-h)^2 +(y-k)^2 = r^2

h is the x value of the center and k is the y value of the center and r is the radius.

Replace h, k and r with the given information:

(x- -7)^2 + (y - -6)^2 = 4^2

Simplify:

(x+7)^2 + (y+6)^2 = 16

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The expression 4h−3 factored is

lubasha [3.4K]

Answer:

prime

Step-by-step explanation:

this equation is not factorable

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2 years ago

David & his 2 brothers deliver papers. Each 1 can deliver a paper every 2 minutes, and all 3 deliver 147 papers. How long do

garri49 [273]

Well, each one takes two minutes, regardless of how many brothers there are. If it takes 2 minutes per paper, then the answer is simply 147*2. Which is 297 minutes. Even if one of them was delivering papers, the answer would be the same. These extra numbers are put in there to confuse you. Dont forget that, be careful what you read.

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2 years ago

(-4x-2)+1/2(12x-22) simplify

Ierofanga [76]

Answer:

2x - 13

Step-by-step explanation:

Step 1 :

Simplify —

Equation at the end of step 1 :

(-4x - 2) + (— • (12x - 22))

Step 2 : Pulling out like terms :

3.1 Pull out like factors :

12x - 22 = 2 • (6x - 11)

Step 3 :

Pulling out like terms :

3.1 Pull out like factors :

12x - 22 = 2 • (6x - 11)

Equation at the end of step 3 :

(-4x - 2) + (6x - 11)

6 0

2 years ago

I need to be in a session to post the picture of the problem

Tpy6a [65]

Answer:

The value of x that makes the equation true is 3

$x=3$

Explanation:

From the attached image;

Let us write the mathematical equation of the model.

The long bar means x, while the small squares have a value of 1 each.

$2x+5=11$

solving the equation we have;

$\begin{gathered} 2x+5=11 \\ 2x=11-5 \\ 2x=6 \\ \text{divide both sides by 2;} \\ \frac{2x}{2}=\frac{6}{2} \\ x=3 \end{gathered}$

Therefore, the value of x that makes the equation true is 3

$x=3$

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9 months ago

Examine the system of equations below. Which choice will not result in an equation that would also belong to this

zaharov [31]

I would say that it is either <span>B. Multiply the second equation by 4. Then add that result to the first equation or </span><span>D. Add the two equations together </span>

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2 years ago