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aksik [14]
3 years ago
6

Match each expression to the scenario it represents.

Mathematics
2 answers:
pickupchik [31]3 years ago
3 0

Answer:

A = A

F = B

I don't know of the others

Step-by-step explanation:

hammer [34]3 years ago
3 0
The person above is correct with those 2 sadly I can’t help either with the others
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Explain how to write 28% as a rate per 100
harkovskaia [24]
28% equals 28/100.  So, 28% equals 28 per 100.
8 0
3 years ago
S
lora16 [44]

Answer:

  B.  9

Step-by-step explanation:

We assume that ...

  SU = ST +TU

  133 = (9x-5) +(5x+12)

  126 = 14x . . . . . subtract 7, collect terms

  9 = x . . . . . . . . . divide by 14

7 0
3 years ago
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
3 years ago
What is the value of x?
Aleonysh [2.5K]

Answer:

x = 6

Step-by-step explanation:

We have to make the bottom eqivilent to the top.

10 + 30 = 40

5 x 6 = 30

10 + 30 = 40

8 0
3 years ago
Read 2 more answers
Write each mixed number as an improper fraction and as a decimal then tell whether the decimal is terminating or repeating.
Sphinxa [80]
7) 29/9; repeating

8) 301/20; terminating

9) -101/20; terminating

5 0
3 years ago
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