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3 years ago

Helps? PLEASE I NEED ANSWER

Mathematics

2 answers:

sweet [91]3 years ago

8 0

Whats the question?

and you need to post the question so people actually know what your talking about js

yarga [219]3 years ago

4 0

One angle is 90 degrees and the other one is 32 and the third angle is 48

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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

Mateo makes 6 loaves of banana bread he sells 2/3 of the loaves

Zinaida [17]

He sold 4 loaves of bread

4 0

3 years ago

Which of the following are equivalent to 160%

vichka [17]

18/10
9/5
Anything along those lines!

3 0

3 years ago

WILL MARK BRAINLIEST AND 23 POINTS

Lubov Fominskaja [6]

The surface area, I believe, is 584,064.

Broken down, the formula is really 312 x 312 x 6

312 x 312 = 97,344 97,344 x 6 = 584,064......... There is your answer.

SA = 584,064

8 0

3 years ago

Find 40% of 28. Use a fraction. 11 1/2 11 11 1/5 10 6/5

Dmitrij [34]

The answer is 11.2 which means 11 1/5

4 0

2 years ago

Read 2 more answers