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katovenus [111]
2 years ago
14

Can you help me on question 25?!

Mathematics
1 answer:
Ainat [17]2 years ago
5 0

Answer:

c.

Step-by-step explanation:

32(0.62)= 19.84 round up so the answer is 20.

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F(x) = x^2 + 8x + 15; Find f(-14/5)
mamaluj [8]

Answer:

either 449/25 or 11/25 depends on the -14/5 or

Step-by-step explanation:

-  \frac{14}{25}  or \:  \frac{ - 14}{25}

if it the first one then the answer should be 449/25 but if ut the second one it should be 11/25 .

u just substitute the -14/5 to x then solve

7 0
1 year ago
Sadie wants to paint 2 boxes. The paint costs $0.02 cents per square cm. If she throws the lids away, how much will it cost to p
Alex

Answer:

how many square centimeters is the box??

Step-by-step explanation:

8 0
2 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
The circumference of a circular pond in the park is 120 meters. Find the area.
Tpy6a [65]

Answer:

1) 38

2) 19

3) 1134

Step-by-step explanation:

7 0
3 years ago
A magazine publisher mails a survey to every subscriber asking about the quality of its subscription service.
scoray [572]
A Statistic.

Since they want to know how their magazine are, they are gonna make a survey. In the survey, the people are statistics to see how well their magazines are. With that, they can decide to change their subjects or whatever it is. Hope this helps!
3 0
3 years ago
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