3 years ago

Actual Distance Map Distance Part of Scale Answer 3. Violetsville to Forkcity is 50 miles 10 in. 1 in. = ?

Mathematics

1 answer:

Rudik [331]3 years ago

4 0

The answer would be 5 miles for 1 inch

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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

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3 years ago

A student concluded that has infinitely many solutions. Which statement BEST describes the student’s conclusion?

Nastasia [14]

What's the equation?

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3 years ago

Nth term fo 3,11,25,45

alexandr1967 [171]

I think the answer may be 291

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3 years ago

Read 2 more answers

The Hunters drove to visit some friends. The table below shows how long it 1 point

Leni [432]

Answer:

60 miles per hour

Step-by-step explanation:

For each point just divide the miles by the hour

120/2 = 60 mph

180/3 = 60 mph

240/4 = 60 mph

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3 years ago

Find the distance from the point (6,10) to the line y=-x to the nearest tenth

ValentinkaMS [17]

<span>points (6,10)
</span>y = -x
x + y = 0

distance = lax1 + by1 + cl/√(a^2 + b^2)
= l1(6) + 1(10) + 0l/√(1^2 + 1^2)
= l6 + 10 + 0l/√(1 + 1)
= l16l/√2
= 16/√2
= 8 .2/√2
= 8 . √2.√2/√2
= 8√2

4 0

3 years ago