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Akimi4 [234]
3 years ago
7

Identify the graphs.......

Mathematics
2 answers:
wlad13 [49]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Equation of a circle: <em>(x - h)² + (y - k)² = r</em>

<em>h is the x-coordinate of the center, and k is the y-coordinate</em>.

Here, <em>h is 3 and y is -2</em>.

So, we find the circle which has the center of (3, -2).

That is D, because the <em>center is 3 to the right and 2 down from the origin</em>.

lapo4ka [179]3 years ago
3 0

Answer:

The Answer is D

Step-by-step explanation:

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4x + y = 10<br> 7x + 2y = 17
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Answer:

x = 3, y = - 2

Step-by-step explanation:

By substitution method,

4x + y = 10 -------> equation 1.

7x + 2y = 17 -------> equation 2.

From equation 1,

y = 10 - 4x ------> equation 3.

Substitute equation 3 in 2,

7x + 2 ( 10 - 4x ) = 17

7x + 20 - 8x = 17

7x - 8x = 17 - 20

- x = - 3

x = 3

Substitute x = 3 in equation 1,

4 ( 3 ) + y = 10

12 + y = 10

y = 10 - 12

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Hence,

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3 years ago
Bethany has $3.10 in nickels and dimes. She has a total of 44 coins. What is the value of the nickels Bethany has?
lesantik [10]
0.05n + 0.1d = 3.10
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d = 44 - n

Substituting to the first equation:

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