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Alexeev081 [22]
3 years ago
12

stephanie invests $3,991 in a retirement account with a fixed annual interest rate of 6% compound continuously. What will the ac

count balance be after 13 years?
Mathematics
1 answer:
wolverine [178]3 years ago
3 0

Answer:

7103.98

Step-by-step explanation:

1) 3991 × 6% = 239.46 intrest rate of a year

2) 239.46 × 13 = 3112.98 intrest rate of 6% for 13yrs

3) 3991 + 3112.98 = 7103.98 Stephanie account balance after 13 yrs

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Using the normal distribution, it is found that 1851 people would have an IQ less than 115.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

\mu = 100, \sigma = 15

The proportion of IQ scores less than 115 is the <u>p-value of Z when X = 115</u>, hence:

Z = \frac{X - \mu}{\sigma}

Z = \frac{115 - 100}{15}

Z = 1

Z = 1 has a p-value of 0.8413.

Out of 2200 people:

0.8413 x 2200 = 1851.

More can be learned about the normal distribution at brainly.com/question/27643290

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5 0
1 year ago
Joel earns 1500 per month. if he spends 375 on rent each month what percent of his income does he has
Harman [31]
He still has 75% of his income left because 1500/375=4 so he spent 1/4 of his check and has 3/4 left.
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3 years ago
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The cost of a flight is related to the distance traveled:
Digiron [165]

The linear regression equation that models the cost of a flight in function of the distance traveled is given as follows:

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<h3>How to find the equation of linear regression using a calculator?</h3>

To find the equation, we need to insert the points (x,y) in the calculator.

For this problem, the points (x,y) are given as follows:

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Hence, inserting these points in the calculator, the linear regression equation that models the cost of a flight in function of the distance traveled is given as follows:

C(m) = 0.08316m + 31.36331

More can be learned about linear regression equations at brainly.com/question/16793283

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2 years ago
What is 5x^2+11x+2 factored
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Answer:

(x+2) (5x)

Step-by-step explanation:

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