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1 year ago

Work out the circumference of this circle.

Mathematics

1 answer:

Nimfa-mama [501]1 year ago

6 0

The circumference of the given circle is 25.1 cm.

According to the statement

we have given that the the radius of circle which is 4cm.

And we have to find the circumference of the circle.

So, For this purpose

The circumference is the length of any great circle, the intersection of the sphere with any plane passing through its center.To calculate the circumference of a circle, multiply the diameter of the circle with π (pi).

The formula to calculate it is

C = 2(pi)r

So, substitute the values in it then

Here use pi value is 3.14

C = 2 *3.14*4

C = 25.12.

The circumference of the given circle is according to one decimal place is 25.12 cm.

So, The circumference of the given circle is 25.1 cm.

Learn more about circumference here

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212.35 into a fraction

Alla [95]

Answer: 212 7/20

Step-by-step explanation: We know that 212 is the whole number. So we need to convert .35 into a fraction in simplest form. Any decimal that has a hundredths place will be divided by 100 to get the fraction. In this case that fraction would be 35/100. And to convert that into simplest form, you need to find the least (or lowest) common denominator which is 5. Then you divide the numerator and denominator by 5 and get 7/20, so your answer is 212 7/20

5 0

3 years ago

How much principle, to the nearest dollar, should you invest at 4 percent in order to have $3000 for a vacation to Europe in 3 y

KiRa [710]

Answer:

Principle should be $2,667

Step-by-step explanation:

We need $3000 for a vacation to Europe in 3 years.

Using amount formula,

$A=P(1+r)^t$

Where, P is principle (P=?)

A is amount (A=3000)

r is rate of interest (r=0.04)

t is time (t=3)

Substitute the values into formula and solve for P

$3000=P(1+0.04)^3$

$3000=P(1.04)^3$

$P=\frac{3000}{1.04^3}$

$P=2666.98$

$P\approx \$2667$

Hence, Principle should be $2,667

4 0

3 years ago

There were 12 people on jury there were 4 more men than women how many men were there

AlekseyPX

Answer:

8 men.

Step-by-step explanation:

12÷3=4.

4 women, 8 men.

8-4=4.

6 0

3 years ago

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Flura [38]

I would believe it would be something like; 120 miles: 2 hours, 800 lbs: 40 square inches...etc.

4 0

3 years ago

Your friend has $100 when he goes to the fair. He spends $10 to enter the fair and $20 on food. Rides at the fair cost $2.00 per

zysi [14]

You could use the function:

f(x)=30+2x
100=30+2x

In which lets say he rode 3 rides. Plug in 3 for x.

100=30+2(3)

Then Multiply
100=30+6

Then combine 30 and 6 to get 36.
Then you can subtract 36 from 100 to get
$64 left over.

5 0

3 years ago