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Annette [7]
3 years ago
6

Help me pls will give lots of points and stuff pls pls pls

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
6 0

Answer:

13 minutes and 30 seconds

Step-by-step explanation:

You must take the 38 meters he is already down away from 200

200-38=162

Then divide that by 12 to get the amount of minutes it took

162/12=13.5


nirvana33 [79]3 years ago
3 0

Answer:

YES YES YES SO EASY

Step-by-step explanation:

345 scuba person

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Here is a simple probability model for multiple-choice tests. Suppose that each student has probability p of correctly answering
Alla [95]

Answer:

a) The probability that Jodi scores 78% or lower on a 100-question test is 4%.

b) The probability that Jodi scores 78% or lower on a 250-question test is 0.023%.

Step-by-step explanation:

a) To approximate this distribution we have to calculate the mean and the standard distribution.

The mean is the proportion p=0.85.

The standard deviation can be calculates as:

\sigma=\sqrt{\frac{p(1-p)}{n} }= \sqrt{\frac{0.85*(1-0.85)}{100} }=0.04

To calculate the probability that Jodi scores 78% or less on a 100-question test, we first calculate the z-value:

z=\frac{p-p_0}{\sigma} =\frac{0.78-0.85}{0.04} =-1.75

The probability for this value of z is

P(x

The probability that Jodi scores 78% or lower on a 100-question test is 4%.

b) In this case, the number of questions is 250, so the standard deviation needs to be calculated again:

\sigma=\sqrt{\frac{p(1-p)}{n} }= \sqrt{\frac{0.85*(1-0.85)}{250} }=0.02

To calculate the probability that Jodi scores 78% or less on a 250-question test, we first calculate the z-value:

z=\frac{p-p_0}{\sigma} =\frac{0.78-0.85}{0.02} =-3.5

The probability for this value of z is

P(x

The probability that Jodi scores 78% or lower on a 250-question test is 0.023%.

6 0
3 years ago
2/3x = y -6 linear or nonlinear
djyliett [7]

Answer:linear

Step-by-step explanation:

If you go onto desmos and write the equation you get a straight line and it’s not curved

3 0
2 years ago
109)
Lubov Fominskaja [6]
I strongly believe the answer is c
Hope this helps in some way:)
7 0
2 years ago
Merlin invested $48,750 into an interest-bearing account 7 years ago, and withdrew all of the money to close it. The
dmitriy555 [2]

Interset always positive ,if a bank don't give interest even though interset remains zero doesn't become negative

Let's find interest here to proof

  • Principal=P=48750
  • Annual=A=49975

Interest:-

  • A-P=49975-48750=1225
3 0
2 years ago
PLS HELP WILL MARK YOU BRAINLIEST!!!
Anettt [7]
<h3>⚘Refer to the attachment!!</h3>

5 0
2 years ago
Read 2 more answers
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