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mars1129 [50]
3 years ago
15

Annie and Rich watch a movie. When they start the movie, the time is 2:23 pm. When the movie ends, the time is 3:58 pm. How long

is the movie?
Mathematics
1 answer:
e-lub [12.9K]3 years ago
7 0

Answer:

1 hour and 35 minutes!! :)

Step-by-step explanation:

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Find the percentage error if you: Estimate your credit card balance to be $2000 when it is $2590. a. 22.8% b. 20.5% c. 30.8% d.
OverLord2011 [107]

Answer:

a) 22.8%

Step-by-step explanation:

(2590-2000) ÷ 2590 =

590 ÷ 2590 =

.2277 = 22.8%

4 0
3 years ago
A study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving (the Wall Street Journal, May
Strike441 [17]

The probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328

<h3>How to determine the probability?</h3>

The given parameters are:

  • Sample size, n = 100
  • Population proportion, p = 82%

Start by calculating the mean:

\mu = np

\mu = 100 * 82\%

\mu = 82

Calculate the standard deviation:

\sigma = \sqrt{\mu(1 - p)

\sigma = \sqrt{82 * (1 - 82\%)

\sigma = 3.84

Within ± 0.02 of the population proportion are:

x_{min} = 82 * (1 - 0.02) = 80.38

x_{max} = 82 * (1 + 0.02) = 83.64

Calculate the z-scores at these points using:

z = \frac{x - \mu}{\sigma}

So, we have:

z_1 = \frac{80.36 - 82}{3.84} = -0.43

z_2 = \frac{83.64 - 82}{3.84} = 0.43

The probability is then represented as:

P(x ± 0.02) = P(-0.43 < z < 0.43)

Using the z table of probabilities, we have:

P(x ± 0.02) = 0.3328

Hence, the probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328

Read more about probability at:

brainly.com/question/25870256

#SPJ1

4 0
2 years ago
the length of a rectangle is 4 feet longer than twice the width of the same rectangle. if the perimeter of the rectangle is 68 f
Rom4ik [11]

Represent the length and width by L and W.  Then L = W + 4.

Using the perimeter formula:  P = 2L + 2W = 68 ft = 2W) + 2(W+4).

Solve for W:  68 = 2W + 2W + 8, or 4W = 60.  Thus, W = 15 and L = 19.

The dimensions of the rectangle are 15 by 19 feet.

4 0
3 years ago
Which of the following best describe the term definition
Mars2501 [29]
I would say it’s c.
D is wrong cause definitions are proven right all the time.
B is wrong because a definition is not an arrangement of deductions
A is wrong because it says that the statement is not defined when it is.
6 0
3 years ago
Read 2 more answers
Mary and James each sit in a row of 7 chairs. They choose their seats at random. What is the probability that they don't sit nex
ANTONII [103]

Answer:

2/7

Step-by-step explanation:

theres 7 chairs and 2 people

4 0
2 years ago
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