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dolphi86 [110]
3 years ago
8

What is the equation of a circle centered at the origin with radius 20​

Mathematics
1 answer:
Nadya [2.5K]3 years ago
5 0

Answer:

we have a rule

(x-h)²+(y-v)²=r²

while h is the x intercept

v is y intercept

r is the radius

so the answer will be

x²+y²=400

or

x²+y²=20²

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Ana Participated in each charity walk she raise $.25 and each 1/2 That she walked the first day and I walked 11 miles a second d
Tresset [83]

<em><u>Question:</u></em>

Ana participated in a charity walk. She raised $0.25 for each 1/2 mile that she walked.The first day Ana walked 11 miles.The second day, she walked 14 miles.How much money did Ana raised?

<em><u>Answer:</u></em>

Ana raised $ 12.5

<em><u>Solution:</u></em>

From given question,

First day walk = 11 miles

Second day walk = 14 miles

<em><u>Let us first calculate the total distance she walked</u></em>

Total distance = first day walk + second day walk

Total distance = 11 + 14 = 25 miles

Thus she walked for 25 miles

Given that,

<em><u>She raised $0.25 for each 1/2 mile that she walked</u></em>

\frac{1}{2} \text{ mile} = 0.25 \text{ dollars }

Therefore, for 1 mile we get,

\frac{1}{2} \times 2 \text{ mile} = 0.25 \times 2 \text{ dollars }\\\\1 \text{ mile } = 0.5 \text{ dollars }

Now calculate for 25 miles

25 \text{ mile } = 25 \times 0.5 = 12.5 \text{ dollars }

Thus she raised $ 12.5

4 0
3 years ago
Decide whether or not it is a function.​
MariettaO [177]
Function because nothing repeats in the domain
3 0
3 years ago
$100 are shared between Adam and Hamza in the ratio 1:3.
Sholpan [36]

Answer:

$25 for Adam and $75 for Hamza

Step-by-step explanation:

$100 will be divided to 3 + 1 = 4 parts

the dollars Adam received

= $100 × 1/4

= $25

the dollars Hamza received

= $100 × 3/4

= $75

-----------------------------------------------------------

the dollars Hamza give to Adam

= $75 × 25%

= $75 × 25/100

= $18.75

the dollars Adam have

= $25 + $18.75

= $43.75

the dollars Hamza have

= $75 - $18.75

= $56.25

the ratio

= 43.75:56.25

= 7:9

3 0
3 years ago
4 + [(16 - 4) + (12 -9)] Also Explain the answer please and thank you
dybincka [34]

Answer:

19

Step-by-step explanation:

4 + [(16 - 4) + (12 -9)]

Using PEMDAS, first solve the parentheses.

16-4 is 12 and 12-9 is 3

Rewrite the expression

4+(12+3)

12+3 is 15

4+15

19.

8 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST!!!! 30 POINTS!!!!!! The speed of a space shuttle orbiting the earth is 17,600 mph.
Kaylis [27]

I think its the space shuttle

I am not sure so you don't have to mark this brainliest, but just tryin na help :)

5 0
4 years ago
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