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BARSIC [14]
2 years ago
8

Lawrence middle school is painting a circle on their playground with a radius of 7 feet what will be the total area of the circl

e in square feet
Use TT = 3.14, and round your answer to the nearest hundredth​

Mathematics
1 answer:
mars1129 [50]2 years ago
4 0

Answer:

The answer will be 153.9

Step-by-step explanation:

multiply 3.14 and 7 square and that is your answer

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What is the equation of the parabola passing through the points<br>(0,6). (3, 15.6), and (10,-4)?​
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Answer:

y = -0.6x^2 + 5x + 6

Step-by-step explanation:

First, find the equation of a linear line that passes through the points (0,6) and (3, 15.6) in the slope intercept form, y = mx + b. We know that the line has a y-intercept of 6, so b = 6. Substitute 3 for x, 15.6 for y, and 6 for b to find m.

y = mx + b

15.6 = 3m + 6

9.6 = 3m

m = 3.2

y = 3.2x + 6

y = a(x - 0)(x - 3) + 3.2x + 6

y = a(x)(x - 3) + 3.2x + 6

Finally, substitute 10 for x and -4 for y in the equation above to find a.

-4 = a(10)(10 - 3) + 3.2*10 + 6

-4 = a(10)(7) + 32 + 6

-4 = 70a + 38

-42 = 70a

a = -0.6

Simplify to write in standard form.

y = -0.6(x)(x - 3) + 3.2x + 6

y = -0.6x^2 + 5x + 6

7 0
1 year ago
My Question is find the x-intercept of following equation.simplify your answer 15x+-4y=20
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Answer:

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Step-by-step explanation:

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