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mestny [16]
3 years ago
13

Help ..... I do not understand this and I will be so appreciative if you guys could help me​

Mathematics
1 answer:
kati45 [8]3 years ago
4 0
I have absolutely no idea
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Need help with problem, been stuck on it for a while
Alinara [238K]
Well, if you look at the picture, the "radius" is 1/4, so r = 1/4.

\bf \textit{diameter of a circle}\\\\
d= 2r\qquad \boxed{r=\frac{1}{4}}\implies d=2\cdot \cfrac{1}{4}\implies d=\cfrac{1}{2}\\\\
-------------------------------\\\\
\textit{circumference of a circle}\\\\
C=2\pi r\qquad \boxed{r=\frac{1}{4}~,~\pi =\cfrac{22}{7}}\implies C=2\left( \frac{22}{7} \right)\left( \frac{1}{4} \right)
\\\\\\
C=\cfrac{2\cdot 22\cdot 1}{7\cdot 4}\implies C=\cfrac{11}{7}\\\\
-------------------------------\\\\

\bf \textit{area of a circle}\\\\
A=\pi r^2\qquad \boxed{r=\frac{1}{4}~,~\pi =\cfrac{22}{7}}\implies A=\left( \frac{22}{7} \right)\left( \frac{1}{4} \right)^2
\\\\\\
A=\cfrac{22}{7}\cdot \cfrac{1^2}{4^2}\implies A=\cfrac{22}{7}\cdot \cfrac{1}{16}\implies A=\cfrac{11}{56}
8 0
4 years ago
Name the intersection of planes RTW and RQW. I have no idea how to do this.. help please???
Helga [31]
In general, the intersection of two planes is the line passing through the points shared by the plane.

In this case, it would be line RW.
7 0
3 years ago
A study with a sample that is very different from the population is
ArbitrLikvidat [17]
F. An experiment because they are conducting a study and experimenting with a sample different from what is known
5 0
3 years ago
the commutative property of addition lets you reorder terms. how is this property used to rewrite the expression
Galina-37 [17]

Answer:

Changing the order of addends does not change the sum.

Step-by-step explanation:

For example, 4 + 2 = 2 + 4 4 + 2 = 2 + 4 4+2=2+44, plus, 2, equals, 2, plus, 4. Associative property of addition: Changing the grouping of addends does not change the

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3 years ago
What interest will be charged on a $300 loan for 6 months if the rate is 18% simple interest?
Yakvenalex [24]

Answer: 540.00

Step-by-step explanation:

4 0
3 years ago
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