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3 years ago

If gasoline costs 2.14 per gallon and you drive 500 miles in a car that gets 30 mpg, what is the cost of gasoline

Mathematics

1 answer:

Vlad [161]3 years ago

8 0

Answer:

35.7

Step-by-step explanation:

First, you would calculate how many gallons of gasoline the car gets. To do this, divide your total mileage of 500 miles by the mpg (30). Now you know how many gallons of gasoline will be used by the car. After calculating, you get 16.67. Multiply this by how much it costs per gallon of gasoline, and you get an answer of $35.7.

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Jason wants to perform a two-tailed test for equality between two independent sample proportions. Each sample has at least 10 "s

Volgvan

Answer:

0.149

Step-by-step explanation:

Given that Jason wants to perform a two-tailed test for equality between two independent sample proportions

Each sample has at least 10 "successes" and 10 "failures."

Jason's test statistic is -1.44

Since here proportions are tested Z test might have been used.

Z statistic = -1.44

We can get p value for this Z statistic

p value=0.149

p value for two tailed is 0.149

Comparing this with t statistic we can decide whether to accept or reject null hypothesis.

6 0

3 years ago

0.810x0.00084/0.000400x0.0270leave the answer in a standard form<br>

olga2289 [7]

Answer:

4.5927 x 10^-2 ?

Step-by-step explanation:

6 0

3 years ago

The sum of the first 12 terms of a geometric sequence with 10 as the first term and a common ratio of 0.3 is __________.

BaLLatris [955]

Answer: 14.2638366937

Step-by-step explanation:

A geometric sequence is a sequence in which each term is multiplied by a number, called the common ratio, to get the next term.

So, if the first term of the geometric sequence is 10 and the common ratio is 0.3, the sequence would be 10, 0.3(10), 0.3 x 0.3 x 10... and so forth. This becomes:

10, 3, 0.9, 0.27, 0.081, 0.00243, 0.00729, 0.002187, 0.0006561, 0.00019683, 0.000059049, 0.0000177147...

You add these first 12 terms to get 14.2638366937.

7 0

3 years ago

What would your salary each year be if you earned $5,000 per week?

choli [55]

Yearly salary would be 240,000 for 5,000 and 48,000 for 1,000 a week

8 0

3 years ago

The life of a manufacturer's compact fluorescent light bulbs is normal, with mean 12,000 hours and standard deviation 2,000 hour

vitfil [10]

Z value is a numerical measurement that describe a value relationship to the mean of a group of values. The standard deviations is 1.25 above the mean is 14,500 hours.

<h3>Given information-</h3>

The mean for the bulb is 12,000 hours.

The standard deviation for the bulb is 2000 hours.

Sample value is 14500.

To find out the how many standard deviation is 14500 mean away from the mean the z value of the mean should be calculated.

<h3>Z value</h3>

Z value is a numerical measurement that describe a value relationship to the mean of a group of values. Z value is the ratio of the difference of the sample value $x$ and mean $\mu$ to the standard deviation. Thus the z value for the given mean $\sigma$ is,

$z=\dfrac{x-\mu}{\sigma}$

$z=\dfrac{14500-1200}{2000}$

$z=1.25$

Thus the standard deviations is 1.25 above the mean is 14,500 hours.

Learn more about the z value here;

brainly.com/question/62233

4 0

2 years ago