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Ray Of Light [21]

3 years ago

11

PLEASE HELP❤️❤️❤️❤️❤️❤️❤️

1 answer:

mart [117]3 years ago

4 0

Answer:

9.10938

Step-by-step explanation:

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The probability that a new car battery functions for more than 10,000 miles is .8, the probability that it functions for more th

MAXImum [283]

Answer:

There is a 50% probability that its total life will exceed 20,000 miles.

Step-by-step explanation:

To solve this question, we use the following formula:

$P(A|B) = \frac{P(A \cap B)}{P(B)}$

In which P(A|B) is the probability of A happening, given that B has happened, $P(A \cap B)$ is the probability of A and B happening, and P(B) is the probability of B happening.

In this problem, we want:

The probability of the total life of the car battery exceeding 20,000 miles, given that it exceeded 10,000 miles.

$P(A \cap B)$ is the probability of exceeding 20,000 and 10,000 miles. It is the same as the probability of exceeding 20,000 miles(If it exceeded 20,000 miles, necessarily it will have exceeded 10,000 miles). So $P(A \cap B) = 0.4$

P(B) is the probability of exceeding 10,000 miles. So $P(B) = 0.8)$

So

$P(A|B) = \frac{P(A \cap B)}{P(B)} = \frac{0.4}{0.8} = 0.5$

There is a 50% probability that its total life will exceed 20,000 miles.

6 0

3 years ago

Geometry help please!! 20 points

vekshin1

Answer:

Step-by-step explanation:

Opposite angles of a cyclic quadrilateral are supplementary, so <u>(6x+72)+3x=180</u>

<u /> $(6x+72)+3x=180\\9x+72=180\\9x=108\\x=12$

6 0

2 years ago

Which of the following relations is a function?

vfiekz [6]

The answer is b. I hope this helps.

3 0

3 years ago

Determine the number of real solutions of the following system of equations.

Sergio [31]

It has one solution x=0

8 0

3 years ago

Box A has a volume of 512 cubic meters. Box B is similar to box A. To create Box B, Box A's dimensions were divided by 2. What i

bearhunter [10]

Answer : The volume of box B is $64m^3$

Step-by-step explanation :

Given :

Volume of box A = 512 cubic meter

Let us assumed that the box A and box B are cubes and the dimensions of cube are same i.e, 'a'.

Volume of box A = V = $a\times a\times a=a^3$

As per question,

When dimensions of box A divided by 2 then the volume of box B will be:

Volume of box A = V' = $\frac{a}{2}\times \frac{a}{2}\times \frac{a}{2}=\frac{a^3}{8}$

As the box B is similar to box A. So, the volume of box B will be:

Volume of box B = V' = $\frac{a^3}{8}$

$V'=\frac{a^3}{8}=\frac{V}{8}$

$V'=\frac{512m^3}{8}=64m^3$

Therefore, the volume of box B is $64m^3$

5 0

3 years ago