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3 years ago

Answer the question above with the choices below.

Mathematics

2 answers:

worty [1.4K]3 years ago

4 0

Answer:

${(x - 8)}^{2} + {(y - 10)}^{2} = 81$

${(x + 7)}^{2} + {(y - 8)}^{2} = 9$

${(x - 8)}^{2} + {(y - 10)}^{2} = 9$

${(x + 8)}^{2} + {(y + 9)}^{2} = 9$

Step-by-step explanation:

use circle equation and plug in the centers and radis.

shutvik [7]3 years ago

4 0

the answer is C) Center: (8,10); Radius=3

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Step-by-step explanation:

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$\boxed{a = 3.14(r)^{2} }$

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the sum of two numbers is 9. if one number is subtracted from the other, the result is 3. find the numbers

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X, y - the numbers

The sum of the two numbers is 9.
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If one number is subtracted from the other, the result is 3.
$x-y=3$

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Answer:

Carl traveled 281.25 km by bus and 1,618.75 km by plane.

Step-by-step explanation: v1 = 60 km/h average speed by bus to Toronto

v2 = 700 km/h average speed by plane to Winnipeg

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t = 7 h total traveling time

t1 = the time of the travel by bug

t2 = the time of the travel by plane

t = t1 + t2 the total time

d1 = the distance traveled by bus

d2 = the distance traveled by plane

d = d1 + d2 the total distance

Since average speed = distance/time we have time = distance/avg.speed

t1 = d1/v1 that is t1 = d1/60

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Plug the above values into t1 + t2 = t.

We have the following system of equations:

d1/60 + d2/700 = 7

d1 + d2 = 1900

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Click here to see the step by step solution for 'd1' and 'd2'

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Answer:

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