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marishachu [46]
3 years ago
12

The cost of installing an electric heating system for a 3- bedroom home is $5000 and the operating cost is $1,100 per year. A so

lar heating system costs $29,700 to install but only $150 per year to operate. After how many years will total costs for the two systems be the same? What will the cost be?
Mathematics
1 answer:
Lana71 [14]3 years ago
3 0

Answer:22

Step-by-step explanation:

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What numerical expression does the simulation provide for the slope? Does it match what you found?
marishachu [46]

Answer:y=Mx+b

Step-by-step explanation:

4 0
2 years ago
A local bottler in Hawaii wishes to ensure that an average of 22 ounces of passion fruit juice is used to fill each bottle. In o
Eduardwww [97]

Answer:

(A)  H_0 : μ = 22 ; H_A : μ ≠ 22

(B) Value of the test statistic = -2.69

Step-by-step explanation:

We are given that a local bottler in Hawaii wishes to ensure that an average of 22 ounces of passion fruit juice is used to fill each bottle. He takes a random sample of 65 bottles. The mean weight of the passion fruit juice in the sample is 21.54 ounces. Assume that the population standard deviation is 1.38 ounce.

We have to test the accuracy of the bottling process.

(A) Let, NULL HYPOTHESIS, H_0 : \mu = 22 ounces  {means that an average of 22 ounces of passion fruit juice is used to fill each bottle}

ALTERNATE HYPOTHESIS, H_A : \mu \neq 22 ounces  {means that an average of 22 ounces of passion fruit juice is used to fill each bottle}

The test statistics that will be used here is One-sample z-test;

             T.S. = \frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \bar X = sample mean weight of the passion fruit juice = 21.54 ounces

            \sigma = population standard deviation = 1.38 ounces

            n = sample of bottles = 65

(B) So, <u>test statistics</u> =  \frac{21.54-22}{\frac{1.38}{\sqrt{65} } }

                                  = -2.69

Hence, the value of test statistics is -2.69.

6 0
3 years ago
What is the approximate value of tan C?
Alenkasestr [34]
<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

➷ tanC = 5 / 13

tanC = 0.3846

The answer would be C. 0.38

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

5 0
3 years ago
Read 2 more answers
Find the mode of the following list of points earned on a 16 point quiz given during a finance class.
koban [17]

Answer:

7

Step-by-step explanation:

The mode is the most repeated number in the data set. In this case, that is 7 because it's repeated 3 times.

8 0
3 years ago
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Which statement about the equation y = 4x + 6 is true?
Ede4ka [16]

Answer:

x= \frac{y}{4} - \frac{3}{2}

Step-by-step explanation:

7 0
3 years ago
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