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Tanzania [10]
3 years ago
8

Simple geometry problem

Mathematics
2 answers:
baherus [9]3 years ago
8 0

you should probably try reading the question first.

the arc measure and radius are given to you. now, it is up to you to use your brain and put two and two together. good luck.

vova2212 [387]3 years ago
7 0

Answer:

Step-by-step explanation:

I gather that you need to find the area of the sector and then subtract from it the area of the segment to get the area of the triangle (although there are other ways in which to find the area of the triangle).

The area of a sector is:

A=\frac{\theta}{360}\pi r^2 where our angle is given as 34, pi is 3.1415, and the radius is 5:

A=\frac{34}{360}(3.1415)(25) and if you multiply and divide that all out you get that the area of the sector is:

A = 7.417

Now subtract from it the area of the segment, 2.209. to get the area of the triangle:

7.417 - 2.209 = 5.208

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The value of N is both 5 times as much as the value of M and 36 more than the value of M. What are the values of N and M? Explai
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Write 0.0406 in scientific notation.
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Read 2 more answers
A study found that the average stopping distance of a school bus traveling 50 mph was 264 feet. a group of automotive engineers
lutik1710 [3]

Answer:

Step-by-step explanation:

Given that a  study found that the average stopping distance of a school bus traveling 50 mph was 264 feet.

Sample taken showed the following results

n=40\\\bar x =262.3 feet\\Std dev = \sigma= 3 ft

Since population std deviation is known and sample size is large, z test can be used.

H_0: \bar x=264\\H_a: \bar x

(Left tailed test)

Mean difference = 264-262.3 = 1.7

Std error = \frac{\sigma}{\sqrt{n} } \\=\frac{3}{\sqrt{40} } \\=0.474

Z = test statistic = mean diff/std error

= \frac{1.7}{0.474} \\=3.584

p value = 0.00017

Since p < alpha our 0.05 we reject null hypothesis

There is evidence to show that mean is less than 264 feet

(Assumptions:

Sample are randomly drawn

Sample represents the population

4 0
3 years ago
according to the 2000 U.S. Census, 138,053,563 Americans are male, and 143,368,343 Americans are female. About what percent of f
Novosadov [1.4K]

Givens

Male  =      138,053,563

Female =   143,368,343

Total

The total equals 281 421 906

Percents

Male = (138,053,563 / 281 421 906) * 100 = 49.1%

Female = ( 143,368,343/ 281 421 906) * 100 =  50.94%

Rounded

Male =  49

Female = 51

Comment.

To find this %s you could just use the first 3 digits of everything.

Total = 138 + 143 = 281

% male = (138/281) = 49.1

% female = (143/281) * 100 = 50.88

These give you the same answers when rounding.

8 0
4 years ago
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