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3 years ago

8

Drag the tiles to the correct boxes to complete the pairs. Match each ratio with its simplest form. 3:1 2:3 1:3 3:4 6:7 9:7 21:2

8 96: 32 22:33 12:36 72:56 54: 63

1 answer:

Sauron [17]3 years ago

8 0

Answer:

Reduce them

3:4
3:1
2:3
1:3
9:7
6:7

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The probability that a car has a certain factory defect is 825. The probability that a car has a certain factory defect and need

ipn [44]

Answer:

90.91% probability that a car needs an oil change given that it has a certain factory defect

Step-by-step explanation:

We use the conditional probability formula to solve this question. It is

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

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this problem, we have that:

Event A: having a factory defect.

Event B: needing an oil change.

The probability that a car has a certain factory defect is 825.

So $P(A) = 0.825$

The probability that a car has a certain factory defect and needs an oil change is 750.

So $P(A \cap B) = 0.75$

What is the probability that a car needs an oil change given that it has a certain factory defect

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.75}{0.825} = 0.9091$

90.91% probability that a car needs an oil change given that it has a certain factory defect

5 0

4 years ago

911!!! please answer this!!!

VikaD [51]

$\left(\dfrac{3a^{-3}b^2}{2a^{-1}b^0}\right)^2$

First some simplifying:

$\left(\dfrac{3a^1b^2}{2a^3b^0}\right)^2=\left(\dfrac{3b^2}{2a^2}\right)^2=\dfrac{9b^4}{4a^4}$

Then with $a=-2$ and $b=-3$ , we have $a^4=(-2)^4=16=4^2$ and $b^4=(-3)^4=81=9^2$ , so

$\dfrac{9b^4}{4a^4}=\dfrac{9\cdot9^2}{4\cdot4^2}=\dfrac{9^3}{4^3}=\dfrac{729}{64}$

7 0

3 years ago

Read 2 more answers

My number has 8 tens the digit in the ones place is greater than the digit in ten place

Lerok [7]

98 is the answer.

The 8 is in the tens place and the number in the ones place is greater than the number in the tens place.

5 0

3 years ago

Which is not a statistical question?

Helga [31]

Answer:

d.

Step-by-step explanation:

A, B, and C ask questions that will be answered with different sets of data.

<u>example a:</u>

purple- 11 students

blue- 5 students

orange- 7 students

<u>example b:</u>

math- 27

history- 30

art- 25

<u>example c:</u>

history books: 12 lbs

math books: 15 lbs

science books: 10 lbs.

If it were to ask how many windows are there in each of the classrooms then it would be statistical.

you get the gist lol.

3 0

3 years ago

Gas prices have really decreased in the past month. At the beginning of March I paid $2.15 per gallon. I just recently filled my

s344n2d4d5 [400]

Answer: 27.44 % decrease in gas prices

Step-by-step explanation: First subtract 2.15 by 1.56 to get 0.59

then divide it by the starting value which is 2.15

0.59 divided by 2.15 is approximately 0.2744

then multiply times 100 to get 27.44 %

hope this helps mark me brainliest if it helped

7 0

3 years ago