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stich3 [128]
3 years ago
5

Find the center and the radius of the circle given this equation: 2 x + 4x + y ² -10y +20=0

Mathematics
1 answer:
NemiM [27]3 years ago
5 0

Answer:

vertex: (5/6,5)

focus: (- 2/3, 5)

axis of symmetry: y = 5

directrix: x = 7/3

Step-by-step explanation:

use the vertex form to determine the values of a.h. and k and use these values to find the direction the parabola opnes, vertex, foucs, axis of symmetry, and directrix

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Kraig deposited money into a money market account. It has an interest of 12% and is compounded annually. Kraig thought 3% would
Klio2033 [76]

Answer:

<u>If the amount is P, with the interest rate of 12%, the interest over the year is:</u>

  • P*(1.12) - P = 0.12P

<u>In this case the quarterly interest rate is:</u>

  • 0.12P/4 = 0.03P

<u>With the same amount and 3% quarterly rate, the yearly interest would be:</u>

  • P*(1.03)^4 - P = 0.1255P

<u>The quarterly interest rate in this case is:</u>

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If the quarterly interest rate is r, it should be little less than 3% to yield a 12% yearly rate.

So Kraig is wrong.

7 0
3 years ago
Please answer correctly !!!!!!!!!! Will mark brainliest !!!!!!!!!!!!
MArishka [77]

Answer:

- 18y = 1

Step-by-step explanation:

Adding the 2 equations term by term on both sides gives

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7 0
3 years ago
Graph a line that contains (-6,1) and has the slope of 5
xeze [42]

Answer:

y - 1 = 5(x+6)

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8 0
3 years ago
In the diagram, which pair of angles are vertical angles?
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Angles 1 and 3, angles 2 and 4, angles 5 and 7, and angles 6 and 8. They are also congruent, because vertical angles are congruent.
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Its Debt :D, good luck !
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