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2 years ago

6

The statement below describes a situation in which opposite quantities combine to make 0. Is the statement true or false? A plan

e takes off, circles the airport, then lands at the same airport

2 answers:

Nadusha1986 [10]2 years ago

5 0

I believe this is true....lets say the plane takes off and goes up 500 ft.....it circles, but then it has to come back down...land...so it comes down 500 ft...
500 - 500 = 0

Romashka-Z-Leto [24]2 years ago

4 0

Answer:

was it true or false

Step-by-step explanation:

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Which real number is not both a whole number and an integer? A. 18 B. 43 C. 0 D. −229

Verdich [7]

A negative number is not considered a whole number...so ur answer is -229

5 0

3 years ago

M<6 =<br><br> A. 53 degrees<br> B. 100 degrees<br> C. 127 degrees<br> D. 130 degrees

FrozenT [24]

C= 127 because 53+127= 180

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2 years ago

Which of the following are equivalent to the function y = 4cos x - 2? Check all that apply.

Amiraneli [1.4K]

The answer is
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8 0

2 years ago

Read 2 more answers

A car insurance company has determined that 8% of all drivers were involved in a car accident last year. Among the 15 drivers li

svetlana [45]

Answer:

There is an 11.3% probability of getting 3 or more who were involved in a car accident last year.

Step-by-step explanation:

For each driver surveyed, there are only two possible outcomes. Either they were involved in a car accident last year, or they were not. This means that we solve this problem using binomial probability concepts.

Binomial probability distribution

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

$P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}$

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

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

And $\pi$ is the probability of X happening.

In this problem

15 drivers are randomly selected, so $n = 15$ .

A success consists in finding a driver that was involved in an accident. A car insurance company has determined that 8% of all drivers were involved in a car accident last year. This means that $\pi = 0.08$ .

What is the probability of getting 3 or more who were involved in a car accident last year?

This is $P(X \geq 3)$ .

Either less than 3 were involved in a car accident, or 3 or more were. Each one has it's probabilities. The sum of these probabilities is decimal 1. So:

$P(X < 3) + P(X \geq 3) = 1$

$P(X \geq 3) = 1 - P(X < 3)$

In which

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)$

$P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}$

$P(X = 0) = C_{15,0}.(0.08)^{0}.(0.92)^{15} = 0.2863$

$P(X = 1) = C_{15,1}.(0.08)^{1}.(0.92)^{14} = 0.3734$

$P(X = 2) = C_{15,2}.(0.08)^{2}.(0.92)^{13} = 0.2273$

So

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.2863 + 0.3734 + 0.2273 = 0.887$

Finally

$P(X \geq 3) = 1 - P(X < 3) = 1 - 0.887 = 0.113$

There is an 11.3% probability of getting 3 or more who were involved in a car accident last year.

5 0

3 years ago

Solve the following equations for x, if possible. check your solutions. 6/dividex+2 = 3/4

SOVA2 [1]

Solving $\frac{6}{x+2}=\frac{3}{4}$ we get x=6

Step-by-step explanation:

We need to solve $\frac{6}{x+2}=\frac{3}{4}$

Solving:

Cross multiply both terms:

$4*6=3(x+2)\\24=3x+6\\3x=24-6\\3x=18\\x=18/3\\x=6$

Verifying the solution:

Putting x=6 in the question given:

$\frac{6}{x+2}=\frac{3}{4}$

$\frac{6}{6+2}=\frac{3}{4}$

$\frac{6}{8}=\frac{3}{4}$

$\frac{3}{4}=\frac{3}{4}$

Solving $\frac{6}{x+2}=\frac{3}{4}$ we get x=6

Keywords: Solving equations

Learn more about Solving equations at:

#learnwithBrainly

3 0

3 years ago