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rewona [7]
3 years ago
13

I need help plz and explination its confusing

Mathematics
1 answer:
Mamont248 [21]3 years ago
3 0

Answer:

12.56

Step-by-step explanation:

The formula for circumference is either πr² πd. Thats basically just multiplying. All you have to do is take the the diameter and multiply it times pi and you get the answer. In some cases they want you to use the radius; radius is diameter divided by 2. Example is if 4 is the diameter 2 is the radius. For this one i did 4 times 3.14(pi).

I hope that helps!

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Alina [70]

Answer:

<em>n o  </em>?????????????????????? ??????? ????????????bgfbxfdcfyctzfxc hcyxydyxhc h cyxtxf y ffsdvbnbf vgrgbxxcb hhfvsd am dj di​

7 0
3 years ago
Read 2 more answers
A number decreased by 9 is 12. Which equation represents this situation?
Mice21 [21]

Answer:

x - 9 = 12

Step-by-step explanation:

We can use x as "a number"

So the equation so far is just "a number", or x.

Decreased by 9 can also be said as subtracted by 9, so that makes the equation x - 9.

"is 12" can also be said as equals 12, which makes the equation x - 9 = 12

4 0
3 years ago
Read 2 more answers
Convert fraction to a decimal 3/8
Ivanshal [37]

In order to convert a fraction into a decimal, you can do one of two ways. I'll do the manual way, first since that's probably what your teacher would prefer.

First, find something that will multiply in the denominator that will equal 10,100,1000.

In this case, it will be 1,000.

1,000 ÷ 8 = 125.

So, you will  multiply both the numerator and the denominator by 125.

3 x 1,000 = 375

8 x 125 = 1,000

Now, you have a BIG fraction of 375/1,000 but it's OKAY! Why? You're almost done.

Take your numerator of 375. Since your denominator has 3 zeros in it, you'll be moving your decimal 3 places to the right (from the imaginary decimal in front of the 3). So, we'll have 0.375.

So, your decimal of 3/8 is 0.375.

____________________________________________________

Now, for the easiest way!

You will simply divide 3 ÷ 8 = 0.375

5 0
4 years ago
Jacobs college savings are invested in a bond that pays an annual interest of 6.2% compounded continuously. How long will it tak
DiKsa [7]

Answer:

Therefore the value of bond will triple after 17.72 years.

Step-by-step explanation:

The formula of Compounded continuously

A=Pe^{rt}

A= Amount after t year

P= initial amount

r = rate of interest

t= time in year.

Given that,

Jacobs college saving are invested in bond that pay 6.2% compounded continuously.

Let after t years the initial amount P will be triple i.e 3P.

Here P=P, A=3P, r= 6.2%=0.062

\therefore 3P=Pe^{0.062t}

\Rightarrow 3=e^{0.062t}   [ Multiply \frac 1P both sides]

Taking ln both sides

\Rightarrow ln3=ln(e^{0.062t})

\Rightarrow ln3={0.062t}        [ since ln(e^a)=a ]

\Rightarrow t=\frac{ln3}{0.062}

\Rightarrow t\approx 17.72 years

Therefore the value of bond will triple after 17.72 years.

4 0
3 years ago
Helppp plzzz I have to submit it today. Look at the figure.
choli [55]

Answer:

angle DGE= 24 Degree

arc GF= 146degree

Step-by-step explanation:

angle DGE is inscribed in arc DE and arc DE is 48 degree , as we know inscribed angle is half of the arc subyending it , so half of 48 is 24 degree

arc GF subtended the angle GEF which is equal to 73 degree , and this angle is inscribed , if we say inscribed angle is half of the arc subtending it , this means the arc is twice of inscribed angle , so twice of 73 is 146 degree so

angle DGE =24 degree &

ARC GF=146 degree

7 0
3 years ago
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