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Kay [80]
3 years ago
5

A principal of $1700 is invested at 6% interest, compounded annually. How much will the investment be worth after 13 years?

Mathematics
1 answer:
mina [271]3 years ago
7 0

Answer:

$3626

Step-by-step explanation:

1700*(1+0.06)^13=3625.978

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5. One Saturday, you want to put in 3 volunteer hours at the food bank. You need to be the for dinner
nataly862011 [7]

Answer:

let's work this out backwards

6:00-10 minutes to get home

5:50-3 hours spent volunteering

2:50-30 minutes to get to food bank

2:20

You need to leave for the food bank at the latest 2:20.

6 0
3 years ago
Suppose a sample of 100 families of four vacationing at Niagara Falls resulted in sample mean of $282.45 spent per day and a sam
Juli2301 [7.4K]

Given Information:

Mean = μ = $282.45

Standard deviation = σ = $64.50

Sample size = n = 100

Confidence level = 95%

Required Information:  

95% Confidence interval = ?

Answer:

95% Confidence interval = ($269.81, $295.09)

Step-by-step explanation:

We are given a Normal Distribution, which is a continuous probability distribution and is symmetrical around the mean. The shape of this distribution is like a bell curve and most of the data is clustered around the mean. The area under this bell shaped curve represents the probability.

What is Confidence Interval?

The confidence interval represents an interval that we can guarantee that the target variable will be within this interval for a given confidence level.  

The confidence interval is given by

CI = \bar{x} \pm MoE\\

Where \bar{x} is the mean and MoE is the margin of error given by

MoE = z_{\alpha/2}(\frac{\sigma}{\sqrt{n} } ) \\

Where σ is the standard deviation, n is the sample size and z_{\alpha/2} is the z-score corresponding to 95% confidence level.

z_{\alpha/2} = 1 - 0.95 = 0.05/2 = 0.025\\\\z_{0.025} = 1.96

MoE = 1.96\cdot \frac{64.50}{\sqrt{100} } \\\\MoE = 1.96\cdot 6.45\\\\MoE = 12.64\\

Finally, the confidence interval is

CI = \bar{x} \pm MoE\\\\CI = 282.45 \pm 12.64\\\\CI = 282.45 - 12.64 \: and \: 282.45 + 12.64\\\\CI = \$269.81 \: and \:\:\$295.09\\

Therefore, we are 95% sure that the true population mean amount spent per day by a family of four visiting Niagara Falls is within the interval of ($269.81, $295.09)

3 0
3 years ago
The cost of one apple and one banana at the school canteen is $1 and the cost of 3 apples and 2 bananas is $2.40. Find the cost
Anastaziya [24]

Answer:

I don't know

I don't know

8 0
2 years ago
Read 2 more answers
HELP
stira [4]
You would just do 5.7-8.1, which is -3.6 degrees Celcius. Hope I helped!
5 0
3 years ago
Please answer it correctly and please show work please help me if it’s correct I will mark you brainliest
Eva8 [605]

Answer:

210 hours

Step-by-step explanation:

<u>Step 1:  Make an expression</u>

(2/3 * 1575) / 5

<u>Step 2:  Multiply</u>

(2/3 * 1575)/5

(1050) / 5

<u>Step 3:  Divide</u>

(1050) / 5

210 hours

Answer:  210 hours

8 0
3 years ago
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