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2 years ago

If 8km= 5 miles convert 160km into miles

Mathematics

1 answer:

d1i1m1o1n [39]2 years ago

8 0

Answer:

99.4194

Step-by-step explanation:

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25% of all who enters a race do not complete. 30 haveentered.

nikklg [1K]

Answer:

The probability that exactly 5 are unable to complete the race is 0.1047

Step-by-step explanation:

We are given that 25% of all who enters a race do not complete.

30 have entered.

what is the probability that exactly 5 are unable to complete the race?

So, We will use binomial

Formula : $P(X=r) =^nC_r p^r q^{n-r}$

p is the probability of success i.e. 25% = 0.25

q is the probability of failure = 1- p = 1-0.25 = 0.75

We are supposed to find the probability that exactly 5 are unable to complete the race

n = 30

r = 5

$P(X=5) =^{30}C_5 (0.25)^5 (0.75)^{30-5}$

$P(X=5) =\frac{30!}{5!(30-5)!} \times(0.25)^5 (0.75)^{30-5}$

$P(X=5) =0.1047$

Hence the probability that exactly 5 are unable to complete the race is 0.1047

6 0

3 years ago

Select all that apply.

Nikolay [14]

Answer:

standard and measure

7 0

2 years ago

On Thursday, a local hamburger shop sold a combined total of 378 hamburgers and cheeseburgers. The number of cheeseburgers sold

yuradex [85]

Answer:

252 Cheese Bugers were sold on Thursday

Step-by-step explanation:

378 divided by 3=126

126+126= number of hamburgers

126= number of chese bugers

126+126=252

3 0

2 years ago

How do you right a number in its prime factorization?

Whitepunk [10]

Please use "write" here, not "right." "write" is "right" here, if you get my drift.
"right" is wrong in this context. ;)

Example: Most of us would see immediately that 5 is a prime factor of 50.

Write 50 as 5 * 10.

10 is not prime; it can be factored into 5 and 2.

Thus, 50 written as the product of its prime factors is 5 * 5 * 2 (answer)

7 0

3 years ago

Find the area if each circle. use 3.14 for x and round your answer to the nearest tenth.

Ket [755]

5. area = 452.4
6. area = 56.8

3 0

3 years ago