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Hoochie [10]
3 years ago
8

HELP PLSSSS I DONT UNDERSTAND WALLAH

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
7 0

Answer:

7.2

Step-by-step explanation:

Distance between (4, 3) and (8, 9):

d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

d = \sqrt{(8 - 4)^2 + (9 - 3)^2}

d = \sqrt{(4)^2 + (6)^2}

d = \sqrt{16 + 36}

d = \sqrt{52} = 7.2 (nearest tenth)

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4. Small Town USA has a population of 3 x 102, Big Town has a population of 6 x 105,
zvonat [6]

Answer:

2.06

Step-by-step explanation:

3x102=306

6×105=630

630 ÷ 306 = 2.0588235294

round it to 2.06

4 0
2 years ago
This year the CDC reported that 30% of adults received their flu shot. Of those adults who received their flu shot,
Vlad [161]

Using conditional probability, it is found that there is a 0.1165 = 11.65% probability that a person with the flu is a person who received a flu shot.

Conditional Probability

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:

  • Event A: Person has the flu.
  • Event B: Person got the flu shot.

The percentages associated with getting the flu are:

  • 20% of 30%(got the shot).
  • 65% of 70%(did not get the shot).

Hence:

P(A) = 0.2(0.3) + 0.65(0.7) = 0.515

The probability of both having the flu and getting the shot is:

P(A \cap B) = 0.2(0.3) = 0.06

Hence, the conditional probability is:

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.06}{0.515} = 0.1165

0.1165 = 11.65% probability that a person with the flu is a person who received a flu shot.

To learn more about conditional probability, you can take a look at brainly.com/question/14398287

7 0
2 years ago
How do I graph y = 1/5 cos x
MariettaO [177]
The answer is here. Hope I did help you.

4 0
3 years ago
Use the diagram below to finish the statement.<br> The measure of angle A is
Kobotan [32]

Answer:

35

Step-by-step explanation:

that should be the answer

8 0
3 years ago
Find the value of f(x) = -3x +2 <br> When x=2
Liono4ka [1.6K]

Answer:

it is -4

Step-by-step explanation:

-3 * 2 = -6 + 2 = -4

5 0
3 years ago
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