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STALIN [3.7K]
2 years ago
9

Help worth 20 points due in 10 minutes

Mathematics
1 answer:
Black_prince [1.1K]2 years ago
5 0

Answer:

answer is option A: 13m+8

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What single decimal multiplier would you use to decrease by 3% followed by a 4% increase?
Nina [5.8K]

Answer:

hvfjbvhfvhacv,,,,,,,,,,sJvj

Step-by-step explanation:

3 0
3 years ago
Consider the probabilities of people taking pregnancy tests. Assume that the true probability of pregnancy for all people who ta
Valentin [98]

Using conditional probability, it is found that there is a 0.8462 = 84.62% probability that a woman who gets a positive test result is truly pregnant.

<h3>What is Conditional Probability?</h3>

Conditional probability is the probability of one event happening, considering a previous event. The formula 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, the events are:

  • Event A: Positive test result.
  • Event B: Pregnant.

The probability of a positive test result is composed by:

  • 99% of 10%(truly pregnant).
  • 2% of 90%(not pregnant).

Hence:

P(A) = 0.99(0.1) + 0.02(0.9) = 0.117

The probability of both a positive test result and pregnancy is:

P(A \cap B) = 0.99(0.1)

Hence, the conditional probability is:

P(B|A) = \frac{0.99(0.1)}{0.117} = 0.8462

0.8462 = 84.62% probability that a woman who gets a positive test result is truly pregnant.

You can learn more about conditional probability at brainly.com/question/14398287

7 0
2 years ago
Joel bought a new Play Station game for $54.00. He received a discount of 30% off the original price. Which fraction or decimal
Gre4nikov [31]

Answer:

0.3 or 3/10

Step-by-step explanation:

100%=1 so 30%=0.3

7 0
3 years ago
Read 2 more answers
Between the numbers 12,21 27,36 and 45 which of the numbers are visible by both 3 and 9
Westkost [7]
27 and 36


12 is too short to be multiplied by 9, 21 can be multiplied by 3 but not 9 again, 3 can’t go into 45. Which leaves 27 and 36. 3 times 9 equals 27. 3 times 12 equals 36, 9 times 4 equals 36.
7 0
3 years ago
Find m∠PLO. Please help
notsponge [240]

Answer:

38

Step-by-step explanation:

Line KP is equal to 180 degrees.

The square on angle OLM means that angle is equal to 90 degrees.

Let angle PLO be represented as x.

That would make our equation be 52 + 90 + x = 180.

Start simplifying down to get x by itself.

180 - 90 = 90

52 + x = 90

90 - 52 = 38

x = 38

6 0
3 years ago
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