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g100num [7]
3 years ago
11

A circle has an area of 30in². What is the area of a 60° sector of this circle?

Mathematics
1 answer:
Amanda [17]3 years ago
7 0

Answer:

5 in^2

Step-by-step explanation:

The area of the sector will always be proportionate to the angle in the circle.

(The area of the sector / area of the circle) is equal to( the angle of the section divided by the angle of the circle)

The total degrees of a circle is 360

(area of the sector) = (60° / 360°) * 30 in^2

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Mesha is comparing 1/3 and 3/5 using benchmarks 0 and 1. Which statements are correct? Check a that apply.
Dennis_Churaev [7]

Answer:

A, C

Step-by-step explanation:

Let's use a different benchmark for this: 1/2. Half of 5 is 2 1/2, so 3/5 is clearly <em>bigger</em> than 1/2 (since 3 is bigger than 2 1/2). Half of 3 is 1 1/2, so 1/3 is clearly <em>smaller</em> than a half (since 1 is smaller than 1 1/2). We have

1/3 < 1/2 < 3/5

Which, of course, implies that <em>1/3 is less than 3/5</em>, and by being smaller, <em>1/3 is closer to 0 than to 1</em>.

5 0
3 years ago
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Pleaseee give me sum answerssss
bija089 [108]

Answer:

D

Step-by-step explanation:

y =94..multiply 5 by94 and get 470

6 0
3 years ago
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Will give brainliest amswer ❤️
Fiesta28 [93]

Answer:

78.5 square units

Step-by-step explanation:

d = 10 \implies \: r =  \frac{10}{2} = 5 \\ area \: of \: circle \\= \pi {r}^{2}   \\  = 3.14 \times  {5}^{2}  \\  = 3.14 \times 25 \\  = 78.5  \:  {units}^{2} \\

8 0
3 years ago
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Jenna has bought a new hybrid car. Each week for a period of seven weeks, she has noted the fuel efficiency (in miles per gallon
Leviafan [203]

Answer: 0.82 miles per gallon

Step-by-step explanation:

Given : Jenna has bought a new hybrid car. Each week for a period of seven weeks, she has noted the fuel efficiency (x) (in miles per gallon) of her car.

The results are :45 44 43 44 45 44 43

The formula to find the standard deviation is given by :-

\sigma=\sqrt{\dfrac{\sum_{i=1}^n(x_i-\overline{x})^2}{n-1}}

First we find mean of the given data ,

\overline{x}=\dfrac{\sum^n_{i=1}x_i}{n}\\\\=\dfrac{45+44+43+44+45+44+43}{7}=\dfrac{308}{7}=44

Now,

{\sum_{i=1}^n(x_i-\overline{x})^2=(1)^2+(0)^2+(-1)^2+(0)^2+(1)^2+(0)^2+(-1)^2

=1+1+1+1=4

Now,  standard deviation of the above results will be :-

\sigma=\sqrt{\dfrac{4}{7-1}}\\\\=\sqrt{\dfrac{4}{6}}\\\\=\dfrac{2}{\sqrt{3}}=0.816496580928\approx0.82

Hence, the standard deviation of these results = 0.82 miles per gallon

8 0
4 years ago
Which represents the numbers in order from least to greatest?<br> 9%, 9/10, 9. -9/1
DaniilM [7]

Answer:

9% 9. -9/1 9/1

Step-by-step explanation:

8 0
3 years ago
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