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mariarad [96]
3 years ago
12

What is the circumference of a circular swimming pool with a diameter of 20

Mathematics
2 answers:
worty [1.4K]3 years ago
8 0

Answer:

A. 62.8 ft

Step-by-step explanation:

C = \pi \: d = 3.14 \times 20 = 62.8 \: ft

harkovskaia [24]3 years ago
4 0
The answer is A 62.8
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3 years ago
Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0=2x2+3x-8?
Basile [38]

Answer:

Step-by-step explanation:

The given quadratic equation is

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To find the roots of the equation. We will apply the general formula for quadratic equations

x = -b ± √b^2 - 4ac]/2a

from the equation,

a = 2

b = 3

c = -8

It becomes

x = [- 3 ± √3^2 - 4(2 × -8)]/2×2

x = - 3 ± √9 - 4(- 16)]/2×2

x = [- 3 ± √9 + 64]/2×2

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