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2 years ago

What’s the circumference, to this problem ?

Mathematics

1 answer:

Dafna11 [192]2 years ago

7 0

Answer:

The formula to get the circumference of a circle is $C=2*\pi * r$ but in this case we see that a diameter is being used therefore we can get rid of the 2 and the r because that is what the diameter and just replace d into there like this $C=d*\pi$ .

We can then input the value and we get that $C=1*\pi$ which then just narrows down to $C=3.142$ .

<u><em>Hope this helps! Let me know if you have any questions</em></u>

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PLEASE HELP RIGHT AWAY

In-s [12.5K]

Answer:

Step-by-step explanation:

Week Number of Beetles

0 16

1 16 + (16/4) = 20

2 20 + (20/4 ) = 20 + 5 = 25

3 25 + (25/4 ) = 25 + 6.25 ≈ 31

4 31 + (31/4) = 31 + 7.75 ≈ 31+8 ≈ 39

5 39 + (39/4) = 39 + 9.75 ≈ 39 + 10 ≈ 49

6 49 + (49/4) = 49+ 12.25 ≈ 49+12 ≈ 61

7 61 + (61/4) = 61 + 15.25 ≈ 61 + 15 ≈ 76

8 76 + (76/4) = 76 + 19 = 95

Hence there will be approximately 95 beetles by 8th week

7 0

3 years ago

Answer need as soon as possible

GaryK [48]

1) 8 + 24/(2*6) -4 = 8 + 24/12 -4 = 8 +2 -4 = 6
the answer is the letter D) 6

2)The answer is the letter D) quadrilaterals

3) 76/100=0.76
The answer is the letter C) 0.76

7 0

3 years ago

Find the dimensions of a rectangle whose area is 285 cm2 and whose perimeter is 68 cm.

enyata [817]

$\bf \textit{area of a rectangle}\\\\
A=lw\quad 
\begin{cases}
l=length\\
w=width\\
-----\\
A=285
\end{cases}\implies 285=lw\implies \boxed{\cfrac{285}{w}=l}
\\\\\\
\textit{perimeter of a rectangle}\\\\
P=2(l+w)\quad 
\begin{cases}
l=\frac{285}{w}\\\\
P=68
\end{cases}\implies 68=2\left( \boxed{\cfrac{285}{w}}+w \right)
\\\\\\
\cfrac{68}{2}=\cfrac{285}{w}+w\implies 34=\cfrac{285+w^2}{w}\implies 34w=285+w^2$

$\bf 0=w^2-34w+285\implies 0=(w-19)(w-15)\implies w=
\begin{cases}
19\\
15
\end{cases}
\\\\\\
\stackrel{lenght}{l}=
\begin{cases}
\frac{285}{19}\implies &15\\\\
\frac{285}{15}\implies &19
\end{cases}$

7 0

3 years ago

In a bowl of fruit, there are green grapes and black grapes in the ratio of 3:4 in there are 24 green grapes, how maney balck gr

jenyasd209 [6]

For every 3 green grapes there are 4 black grapes.

There are 24 green grapes, which is 3*8, so there must be 4 * 8 = 32 black grapes.

8 0

3 years ago

Read 2 more answers

Please help I suck at math

Volgvan

I think it is the last one.

6 0

3 years ago