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shtirl [24]
3 years ago
9

Which statement is true

Mathematics
2 answers:
Eva8 [605]3 years ago
8 0

Answer:

3/6 = 4/8

Step-by-step explanation:

they're both halves

svlad2 [7]3 years ago
8 0

Answer:

The one that says 3/6 = 4/8

Step-by-step explanation:

Could you give me brainliest please?

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1. A luge race is very dangerous, and a crash can cause serious injuries. The league requires anyone who has a crash to have a t
antiseptic1488 [7]

Answer:

0.7061 = 70.61% probability she will have her first crash within the first 30 races she runs this season

Step-by-step explanation:

For each race, there are only two possible outcomes. Either the person has a crash, or the person does not. The probability of having a crash during a race is independent of whether there was a crash in any other race. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

A certain performer has an independent .04 probability of a crash in each race.

This means that p = 0.04

a) What is the probability she will have her first crash within the first 30 races she runs this season

This is:

P(X \geq 1) = 1 - P(X = 0)

When n = 30

We have that:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{30,0}.(0.04)^{0}.(0.96)^{30} = 0.2939

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.2939 = 0.7061

0.7061 = 70.61% probability she will have her first crash within the first 30 races she runs this season

7 0
2 years ago
Javier is helping his parents put up posters in their movie theater. Each Poster has a thickness 0.012 inch. How thick is a stac
lions [1.4K]

Answer:

10 posters are .12 and 100 are 1.2 inches 1000 posters are 12 inches.

Step-by-step explanation:

.012×10=.12 in

For every 0 in the ten move the decimal back 1.

.012×100=1.2 in

.012×1000=12 in

5 0
3 years ago
Simplify the expression. write the answer using scientific notation 4(6.2x10^11)
Veseljchak [2.6K]
Answer:
= 2.48 × 10¹²
(scientific notation)

= 2.48e12
(scientific e notation)

= 2.48 × 10¹²
(engineering notation)
(trillion; prefix tera- (T))

= 2480000000000
<span>(real number)</span>
7 0
3 years ago
Read 2 more answers
Please help? What is the tangent ratio of angle B?
bearhunter [10]

Answer:

Step-by-step explanation:

The tangent equation = side opposite angle / side beside angle

which in this case is tan\alpha =AC/ BC

which is the third choice

Hope that helps!

5 0
3 years ago
In a test, John was able to answer 15 correct out of 40 questions. Beth was able to answer 24 questions correctly out of 50. Mic
Helen [10]

Answer:

that is wrong beth has a better score

Step-by-step explanation:

14 out of 40 is 37.5%

and 24 out of 50 is 48%

4 0
2 years ago
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