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Tanzania [10]
2 years ago
11

A Ferris wheel travels in a circular motion and measures 40 meters from the top car to the bottom car. What is the length of the

radius of the Ferris wheel
Mathematics
1 answer:
luda_lava [24]2 years ago
5 0

Answer:

  20 m

Step-by-step explanation:

The distance from the top car to the bottom car is equal to the diameter of the wheel. The diameter is 40 m, and that is twice the radius. The radius of the Ferris wheel is (40 m)/2 = 20 m.

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A triangle has side lengths measuring 20 cm, 5 cm, and n cm. Which describes the possible values of n?
tekilochka [14]
Sum of two sides of the triangle should be more than 3d side.
n<20+5,
n<25

Third side should be more than difference of  two other sides.
n> 20-15
n>5

So, n should be
5<n<25.
6 0
3 years ago
Read 2 more answers
(The photo is too big to fit so don't mind that.)
mafiozo [28]

Answer:

82

Step-by-step explanation:

1'st step: a^{2} + b^{2}= c^{2} is the formula for the pythagorean theorem

2'nd step : 18^{2} + 80^{2} =  c^{2}

3'rd step:   324+6400 =  c^{2}

4'rd step: 6724=  c^{2}

5'th step: \sqrt{6724} =82

6'th step : therefore the value of c is 82 cm

8 0
2 years ago
Who wants to solve a question.
vovikov84 [41]

Answer:

Step-by-step explanation:

5(p-3)

the 3 lbs she uses are being subtracted and then is being multiplied per lb

6 0
1 year ago
What is X? x divided by 4/9 = 9/10
Damm [24]

Answer:

2/5

Step-by-step explanation:

\frac{x}{\frac{4}{9} } =\frac{9}{10}

(\frac{9}{10})(\frac{4}{9} )=\frac{36}{90}

36 divided by 90 is 2/5.

When solving for X you do the opposite to a number if you are moving it to the other side of the problem. so, since x is being divided by 4/9, 4/9 would be multiplied to the opposite or to the 9/10.

7 0
3 years ago
You want to estimate the probability that a lightbulb of a famous brand will last more than 6.500 hours. You choose 10,000 bulbs
brilliants [131]

Answer/Step-by-step explanation:

(a) The likelihood function to estimate this probability can be written as:

mat[1000, 9800]p9580(1 - p)420

(b) The value of the maximum likelihood estimate of the probability 0.958(By taking log of expression in (a) above)

(c) when the true probability is 98%, then it implies that 9800 of 10,000 bulbs did last over 6500hours.

Therefore, the likelihood is p(9800) = mat[10000, 9800]p9800(1 - p)200

(d) Method of moments estimate is the estimation of all the parameters of the population sample.

(e) The statement is FALSE because estimates by the method of moments are not necessarily sufficient statistics, because sometimes fail to take into account all relevant information in the sample. As in the above question

4 0
3 years ago
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