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Amanda [17]
3 years ago
11

The equation of a circle is (X+12)^2+(y+16)^2=r^2, and the circle passes through the origin. The equation of the circle then cha

nges to ( x-30)^2+(y-16)^2=(r2)^2 and the circle still passes through the origin. What are the values of r1 and r2? Answers: r1 = 10 and r2 = 17 r1 = 10 and r2 = 34 r1 = 20 and r2 = 17 r1 = 20 and r2 = 34
Mathematics
1 answer:
serious [3.7K]3 years ago
3 0

Answer:

x=\sqrt{r_{2} +y-16(r2-y+16)+30}R2

r=\sqrt{x^2+24x+y2+32y+400}

Step-by-step explanation:

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ZABC and ZQRS are supplementary angles.
SVEN [57.7K]

THEOREM:

•<u> </u><u>Supplementary angle</u> —» The sum of two angles is equal to 180°.

ANSWER:

By supplementary angle property,

So, m∠QRS + m∠ABC = 180°

  • m∠QRS + 41° = 180°
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3 years ago
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Anyone know the answer?
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21x = 3x + 36    |substract 3x from both sides
18x = 36     |divide both sides by 18
x = 2

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3 years ago
Given f(x)= 2x^3+kx-1, and x+1 is a factor of f(x), then what is the value of k?
VMariaS [17]

Answer:

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2 years ago
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Name two decimals that are equivalent to 7.75
Tatiana [17]
7.750 and 7.7500 are 2 equivalent fractions.

4 0
3 years ago
kell works at an after-school program at an elementray school. on monday he work for 1.5 hours and recived 12.6 dollars, on tues
Rina8888 [55]

Answer:

Kell would make more money working 10 hours than Markio.

Step-by-step explanation:

To find how much Kell makes per hour, you have to divide how much he worked by how much he earned. So on Monday, Kell worked 1.5 hours and received 12.6 dollars. Divide 12.6/1.5 and you'll find you're answer.

Monday:   12.6/1.5=<u>8.4</u>

On Tuesday, the problem states that he worked 2.5 hours and received 21 dollars. Divide 21/2.5 and you'll find the answer.

Tuesday:     21/2.5= <u>8.4</u>

On Wednesday, the problem states that he worked 4 hours and received 33.60. Divide 33.60/4 and you'll get you're answer.

Wednesday:    33.60/4= <u>8.4</u>

So we can conclude that Kell makes $8.40 per hour.

Now the problem states, Markio gets paid 7 dollars per hour. To find the answer to the question, you have to multiply how much they make per hour times 10 hours.

Markio:  7x10=70

Kell:  8.4x10=84

So to answer the question, Kell would make more money working 10 hours.


Hope it helps!

3 0
3 years ago
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