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3 years ago

10

Petra bought a car she wrote the different expenses associated with it in this table. What are the total expenses for the car af

ter 6 months

2 answers:

Anastaziya [24]3 years ago

7 0

Answer:

Beyond late but found the table answer would be $20,295

levacccp [35]3 years ago

5 0

Where is the table sir?

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Factor 15y2 + 10y − 40.

Vaselesa [24]

see how it do it in the picture and hope it helps you..

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3 years ago

Rounded to the nearest dime what is the greatest amount of money that rounds to $105.40?

Lelechka [254]

If I understand this correctly I would say $105. Hope this helps. :)

4 0

3 years ago

In a sample of 41 temperature readings taken from the freezer of a restaurant, the mean is 29.7 degrees and the population stand

yKpoI14uk [10]

Answer: $=(29.1596\text{ degrees},\ 30.2404\text{ degrees})$

Step-by-step explanation:

Given: Sample size: n = 41

Sample mean $\overline{x}= 29.7$ degrees

Population standard deviation $\sigma=2.7$ degrees

Confidence level (c) = 80% =0.80

Significance level (a) = 1- c = 1-0.80 = 0.20

z-score for 80% confidence level : z = 1.2816 [from z-table]

Confidence level for population mean :-

$\overline{x}\pm z\dfrac{\sigma}{\sqrt{n}}$

$=29.7\pm ( 1.2816)\dfrac{2.7}{\sqrt{41}}$

$=29.7\pm ( 1.2816)\dfrac{2.7}{6.403124}$

$=29.7\pm ( 1.2816)(0.42167)$

$=29.7\pm 0.5404$

$=(29.7-0.5404,\ 29.7+0.5404)$

$=(29.1596,\ 30.2404)$

Hence, 80% confidence interval for the temperatures in the freezer $=(29.1596\text{ degrees},\ 30.2404\text{ degrees})$

7 0

2 years ago

the temperature at the south pole was -39degree f at 8am. at 3pm it was 10degree f, by how many degrees did the temperature rise

natita [175]

Answer:

Step-by-step explanation: start at -39 degrees. You need to find how many degrees is between -39 and 10 degrees.

+39+10= 49 degrees risen

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3 years ago

Alexis cell phone company charges her $35 a month for phone service plus $0.40 for each text message. How many text message does

r-ruslan [8.4K]

Answer:

$92.50

Step-by-step explanation:

$72 - $35 = 37

37 / 0.40 = 92.5

Answer = $92.50

8 0

3 years ago