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3 years ago

How would I go about solving this?

Mathematics

1 answer:

garik1379 [7]3 years ago

8 0

If you draw more of those triangles, there will be 6 that can fit, so find area of 1 triangle and multiply it by 6. Write that number down and then do Pi r squared to find the area of the circle, then do circle area minus triangles area when you get that, divide it by 6. That is the area of the white region so then do Pi R squared again and then subtract the white area from that

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An equation of the circle whose center is the origin and

tankabanditka [31]

Answer:

$\fbox{\begin{minipage}{10em}Option C is correct\end{minipage}}$

Explanation:

A circle whose center is $(a, b)$ and radius $r$ , has equation:

$(x - a)^{2} + (y - b)^{2} = r^{2}$

The center of circle is given as origin $(0, 0)$ , therefore:

$a = 0\\b = 0$

This circle passes $(3, 0)$ , then the radius of circle is the distance $(d)$ between origin $(0, 0)$ and $(3, 0)$

$d = \sqrt{(0 - 3)^{2} + (0 - 0)^{2} } = \sqrt{3^{2} } = 3$

=> $r = d = 3$

Substitute $a$ , $b$ , and $r$ back into original equation:

$(x - 0)^{2} + (y - 0)^{2} = 3^{2}$

$x^{2} + y^{2} = 9$

Hope this helps!

3 0

3 years ago

To find the quotient of 726.02 and 1,000, move the decimal point in 762.02___Places to the ____

Alja [10]

from blank one five

from blank two is right

8 0

3 years ago

A table and 8 chairs weigh 235.68 lb together. If the table weighs 157.84 lb, what is the weight of one chair in pounds?

Alona [7]

Answer: 9.73 lb each chair

Step-by-step explanation:

You substract the weight of the table alone from the full weight:

235.68 - 157.84=77.84

Then you divide 77.84 by 8 chairs and you obtain the weight of each individual chair

77.84/8= 9.73 the weight of each individual chair

7 0

3 years ago

Read 2 more answers

Mary stated that 2.01 x 10⁶ is less than 4.8 x 10⁴ because 2.01 is less than 4.8. what was mary's mistake ?

PIT_PIT [208]

Answer:

Mary's mistake was that she didn't take into account of the power that 10 is raised to; since 2.01 is multiplied by 10 to the 6, it makes 2.01 bigger. You can also expand the number to check:

2 010 000 vs. 4800

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3 years ago

Use greatest common factor and distributive property to write equivalent expressions 5x+20y

leonid [27]

Answer:

I think it is 5 if I did it right

4 0

2 years ago