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igomit [66]
3 years ago
12

Identify the center of the circle whose equation is (x - 2)2 + (y + 8)2 = 16.

Mathematics
2 answers:
qwelly [4]3 years ago
7 0
I believe the answer to your question would be x = -y + 2
astra-53 [7]3 years ago
3 0
2x - 4 + 2y + 16 = 16
16 - 4 = 12
2x + 2y + 12 = 16
16 - 12 = 4
4/2 = 2x + y
2/2 = 1x + y
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Expanding expressions: 1/3(9x + 16 + 2) +2x
maksim [4K]

Answer:

5x+6

Step-by-step explanation:

(1/3*9x)+(1/3*16)+(1/3*2)+2x=

3x+16/3+2/3+2x=

5x+18/3=

5x+6

6 0
2 years ago
PLS HELP THIS IS DUE TOMORROW!!!
Lina20 [59]

Answer:

the above photo is what you should do. multiply every term with every other term in each bracket.

6 0
1 year ago
Which figure correctly demonstrates using a straight line to determine that the graphed equation is not a function of x? HELP PL
Nadya [2.5K]

Answer:

Lower left.

Step-by-step explanation:

To determine if a graph is a function the "vertical line test is used.  If any point on a graph has one x value go to two y values it is not a function.  

Witht he four pictures, the two on the right use a horizontal line, so it doesn't tell at all, on the leftthe upper one is vertical but it doesn't show that one x value has two corresponding y values.  So it must be the lower left one.

The lower left picture has a line at x=1, and it passes through the line of the graph at two different y values, 4 and -4.  So this has two y values with one x value.

8 0
3 years ago
Read 2 more answers
At Best Buy they have a stereo system that sells for $2200 and is on sale for 15% and sales tax is 7%. What is the final cost? (
Arte-miy333 [17]

Answer:

Final cost = $3070.90

Step-by-step explanation:

First we need to find the discount

Discount = original price * percent off

Discount = 2200 * .15

Discount = 330

Sale price = original price - discount

Sale price = 3200-330

Sale price = 2870

Now we need to calculate tax

Tax = sales price times tax rate

Tax = 2870 * .07

     = 200.90

Final price = sales price plus tax

Final price = 2870 + 200.90

                   3070.90

6 0
3 years ago
ABCD and EFGH are squares. If JH= 4cm and JC=9cm, then what is the area of the shaded region?
romanna [79]
The squares are shown in the attached picture.

As you can see, JC is half the diagonal of ABCD and JH is half the diagonal of EFGH.

In order to find the area of the shaded figure, we need to subtract the area of the white square (EFGH) from the area of the big square (ABCD).

The area of a square know the diagonal is given by the formula:
A = d² ÷ 2

A(ABCD) = (2×JC)² ÷ 2
                = (2×9)² ÷ 2
                = 162 cm²

A(EFGH) = (2×JH)² ÷ 2
               = (2×4)² ÷ 2
               = 32 cm²

Therefore:
A = A(ABCD) - <span>A(EFGH)
   = 162 - 32
   = 130 cm</span>²

The area of the shaded region is 130 cm².

3 0
2 years ago
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