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pantera1 [17]
2 years ago
11

Which is a point on the circle whose center is (0,0) and whose radius is 5? A. (0,0)

Mathematics
1 answer:
Temka [501]2 years ago
4 0

Answer:

(3,4)

Step-by-step explanation:

x^2+y^2=(5)^2

if you graph it you will see that (3,4) is on the circle

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Cary is 7 years older than Dan. In 7 years the sum of their ages will be 79. Find the age of each man now.
Vilka [71]

Answer:

Dan is 29. Cary is 36.

Step-by-step explanation:

Let Dan's age now be D.

Let Cary's age now be C.

"Cary is 7 years older than Dan."

C = D + 7

"In 7 years the sum of their ages will be 79. "

In 7 years, the ages of Dan and Cary will be D + 7 and C + 7, respectively.

D + 7 + C + 7 = 79

C + D + 14 = 79

C + D = 65

C = D + 7

The last two equations in bold above form a system of equations. Since the second equation is already solved for C, we use the substitution method.

D + 7 + D = 65

2D + 7 = 65

2D = 58

D = 29

C = D + 7

C = 29 + 7

C = 36

Answer: Dan is 29. Cary is 36.

3 0
3 years ago
Hello!!!! :) please help with this math problem! thank u so much!!!! i really appreciate it <3
Morgarella [4.7K]

Answer:

AGREE!

Step-by-step explanation:

"I agree with Lin, she used the correct formula to get this answer"

3 0
2 years ago
Find y-intercept for 9x-5y=0.
LUCKY_DIMON [66]

Answer:

y=-9/5x+0  the y intercept would simply be 0

Step-by-step explanation:

3 0
2 years ago
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I really need help with this question, pls help!!
Marrrta [24]

Answer:

Step-by-step explanation:

Here the average rate of change would be

                  f(6) - f(1)      162 - (-8)

a. r. of c. =  ----------- = ------------------ = 154/5 = 308/10 = 30.8 or 30 8/10

                      6-1                  5                     or  30 4/5

6 0
3 years ago
What's 30 minutes after 7:30 PM
QveST [7]
30 minutes after 7:30 would be 8:00 PM
7 0
3 years ago
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