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3 years ago

Find the circumference of the circle

Mathematics

2 answers:

wlad13 [49]3 years ago

6 0

Answer:

11 times pi or 34.56 cm.

Step-by-step explanation:

The equation for the circumference of a circle is pi times diameter. The diameter in this case is 11. So the answer is 11 times pi or, as a decimal, approximately 34.56.

frozen [14]3 years ago

3 0

Answer:34.55751919 cm

Step-by-step explanation:

the formula for circumference is C = π×diameter, so you multiply π times 11 (the diameter) and you get the circumference, round it to the nearest tenth or hundredth if needed.

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Bob has a dog who weighs 12 pounds. His cat weighs 2/3 as much as the dog. How many pounds does his cat weigh?

zheka24 [161]

The dog weighs 12 lbs.
The cat weighs 2/3 as much as the dog

- Divide 12 by 3
= 4

- Then multiply by 2
= 8

His cat weighs 8 pounds.

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3 years ago

98 Points !! These are follow up according to previous question that had been answered for me. Help would be appreciated ! :))

IgorLugansk [536]

That's a copy of the figure from the other post; I didn't look at the answer.

We have Start(0,0)

$A(-16.55\cos 25, -16.55 \sin 25)$

$B=A+(5 \cos 53, 5 \sin 53)$

$C=B+(20,0)$

$C=(-16.55\cos 25 + 5 \cos 53+20, -16.55 \sin25 - 5 \sin 53)$

$C \approx (8.00968, -10.9875) \approx(8,-11)$

Your team takes the direct path at a constant speed of 6 miles per hour.

Our team. $T=\sqrt{8^2+11^2}/6 = 2.27 \textrm{ hours}$

Team Red follows the riddle and travels at 8 mph from Start to Post A, 9 mph from Post A to Post B, and 11 mph from Post B to Finish.

$T=16.55/8 + 5/9 + 20/11 = 4.44 \textrm{ hours}$

Team Blue follows the riddle and travels at a constant speed of 10 mph.

 $T=(16.55 + 5 + 20)/10 = 4.155 \textrm{ hours}$

Team Yellow follows the riddle and travels at a constant speed of 11 mph, but stops at Post A for 30 minutes and stops again at Post B for another 30 minutes.

$T=(16.55 + 5 + 20)/11 + 30/60 + 30/60=4.78 \textrm{ hours}$

Winner: our team, then Blue, then Red, then Yellow

3 0

3 years ago

Olegator [25]

Hope this helps somewhat

7 0

3 years ago

Which value lies between 8 and 9 on a number line?

Zigmanuir [339]

The answer is root 70

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2 years ago

Read 2 more answers

An item that was selling for $72.00 was reduced to $60.00. Find the percent decrease in price. Show all your work.

dsp73

The formula to figure out the percentage increase or decrease is:
(new - old) / old * 100% 

new = 60 
old = 72 

(60 - 72) / 72 * 100% 
-12 / 72 * 100% 
= -1/6 * 100% 
= -0.1666... * 100% 
≈ -16.667% 

Because it is negative, that's a decrease. 

Answer: 
A decrease of about 16.7%

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3 years ago