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lilavasa [31]
3 years ago
9

Please help I'm desperate

Mathematics
1 answer:
vfiekz [6]3 years ago
8 0

Answer:

C = 131.88 cm

Step-by-step explanation:

the circumference (C) of a circle is calculated as

C = 2πr ( r is the radius ) , then

C = 2 × 3.14 × 21 = 131.88 cm

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Explain in your own words using appropriate vocabulary on how you determine what side is opposite, adjacent and the hypotenuse.
cupoosta [38]

Answer:

You can determine the hypotenuse easily, since it's the longest side of the triangle. To find the hypotenuse you use the Pythagorus Theoreom. To determine an adjacent angle, just find the opposite of the given angle. The hypotenuse of a right triangle is always the side opposite the right angle.

<u><em>Hope this helps :) - genius423</em></u>

5 0
3 years ago
A business purchases a computer system for $5,300. The value of the system decreases at a rate of 12% per year. In how many year
N76 [4]

Answer:

7

Step-by-step explanation:

If a system decreases by 12% it's the same as multiplying it by .12-1 or .88

This means we can create the following equation

computer value=5300(.88)^n

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We can then plug in the value of the computer and solve for n

2200=5300(.88)^n

Divide by 5300 and get

.415=.88^n

Then put this into log form and get

\frac{log(.415)}{log.88}

Evaluate this into your calculator and get n=6.69 which I would probably just round to 7

6 0
3 years ago
At McCord Middle School, 200 students rode their bike or walked to school. This is 40 percent of the total student body. How man
Inga [223]
500 students. if 200 students= 40% and you need to find the full 100% they you would add another 200 students or 40% and then you would add another 100 students or 20%. when you add all them up you get 40%+40%+20%= 100% and 200+200+100=500.
6 0
4 years ago
Read 2 more answers
What would be the final location of point (2,6) after a rotation 90° counterclockwise about the origin. Write the location of th
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4,3 counterclockwise
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3 years ago
So far this month John calculated that he will earn $40 in comission for his $500 in product sales. If John would like his comis
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John made $40 commissions for $500 sales or 40/500. He wants $320 for an unknown amount of sales or 320/x.

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Divide both sides by 40.

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He needs his sales to be $4,000 to get $320 in commission.

4 0
4 years ago
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