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3 years ago

8

Which of the following is an ordered pair on the graph? What does it represent in this situation?

1 answer:

denis23 [38]3 years ago

8 0

The answer is C I think try putting that one ok I tried to help so yeah um have a great day

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ivolga24 [154]

The answer is X=5 and Y =-2

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3 years ago

5. Al earns $96 for six hours of work. How much would he earn in eight hours?

love history [14]

Answer:

96/6=16

16x8=128

Therefore Al makes 128 dollars for 8 hours

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3 years ago

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How many diagonals can be drawn in the shape below?<br><br><br><br> 7<br> 8<br> 9<br> 10

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3 years ago

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What is the median of the following set of numbers? 1/12, 5/12, 1/2, 1/6, 1/2, 3/4, 2/3

Tema [17]

Mean- 103
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2 years ago

The circumference of the ellipse approximate. Which equation is the result of solving the formula of the circumference for b?

Serhud [2]

Answer:

$b = \sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}}$

Step-by-step explanation:

Given - The circumference of the ellipse approximated by $C = 2\pi \sqrt{\frac{a^{2} + b^{2} }{2} }$ where 2a and 2b are the lengths of 2 the axes of the ellipse.

To find - Which equation is the result of solving the formula of the circumference for b ?

Solution -

$C = 2\pi \sqrt{\frac{a^{2} + b^{2} }{2} }\\\frac{C}{2\pi } = \sqrt{\frac{a^{2} + b^{2} }{2} }$

Squaring Both sides, we get

$[\frac{C}{2\pi }]^{2} = [\sqrt{\frac{a^{2} + b^{2} }{2} }]^{2} \\\frac{C^{2} }{(2\pi)^{2} } = {\frac{a^{2} + b^{2} }{2} }\\2\frac{C^{2} }{4(\pi)^{2} } = {{a^{2} + b^{2} }$

$\frac{C^{2} }{2(\pi )^{2} } = a^{2} + b^{2} \\\frac{C^{2} }{2(\pi )^{2} } - a^{2} = b^{2} \\\sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}} = b$

∴ we get

$b = \sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}}$

8 0

3 years ago