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S_A_V [24]
3 years ago
11

The diameter of a truck wheel is 56.5 inches. What is the circumference of the wheel?

Mathematics
2 answers:
tekilochka [14]3 years ago
7 0

Answer:

177.5 inches

Step-by-step explanation:

c = 2πr

d = r2

56.5/2=28.25

28.25x3.14= 88.705

88.705x2=177.41

Round, and you’ll get 177.5.

Ad libitum [116K]3 years ago
3 0

Answer: 177.4999849 , or 56.5pi

Step-by-step explanation:

You simply divide the diameter by 2 to get the radius (28.25) and then plug into the circumference equation, 2*pi*r = Circumfrence.

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Write the smallest whole number that make this statement correct 1142 > >981​
jonny [76]

Answer:

982

Step-by-step explanation:

The teacher is asking for the smallest number which fits the statement. 982 is correct because it is only one more than 981.

6 0
3 years ago
Suppose it is known that 60% of radio listeners at a particular college are smokers. A sample of 500 students from the college i
vladimir1956 [14]

Answer:

The probability that at least 280 of these students are smokers is 0.9664.

Step-by-step explanation:

Let the random variable <em>X</em> be defined as the number of students at a particular college who are smokers

The random variable <em>X</em> follows a Binomial distribution with parameters n = 500 and p = 0.60.

But the sample selected is too large and the probability of success is close to 0.50.

So a Normal approximation to binomial can be applied to approximate the distribution of X if the following conditions are satisfied:

1. np ≥ 10

2. n(1 - p) ≥ 10

Check the conditions as follows:

 np=500\times 0.60=300>10\\n(1-p)=500\times(1-0.60)=200>10

Thus, a Normal approximation to binomial can be applied.

So,  

X\sim N(\mu=600, \sigma=\sqrt{120})

Compute the probability that at least 280 of these students are smokers as follows:

Apply continuity correction:

P (X ≥ 280) = P (X > 280 + 0.50)

                   = P (X > 280.50)

                   =P(\frac{X-\mu}{\sigma}>\frac{280-300}{\sqrt{120}}\\=P(Z>-1.83)\\=P(Z

*Use a <em>z</em>-table for the probability.

Thus, the probability that at least 280 of these students are smokers is 0.9664.

8 0
3 years ago
Solve for y 1.2x - 4y = 28
Dovator [93]
Your question is incomplete i guess
6 0
4 years ago
Suppose you did a survey of male shoes size and the mean of that survey was size 10 with a standard deviation of 1.5. What is th
astra-53 [7]
Given:
Population mean,  μ = 10
Population standard deviation, σ = 1.5
Random variable, x = 11.

By definition, the z-score is
z = (x - μ)/σ
   = (11 - 10)/1.5
   = 0.667

Answer: 0.667
4 0
3 years ago
What equation results from completing the square and then factoring x^2-12x=58
Anna11 [10]

Just add the numbers then subtract from 12

8 0
3 years ago
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