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Keith_Richards [23]
3 years ago
6

PLZ HELP ME!!!!!!

Mathematics
1 answer:
katrin [286]3 years ago
3 0
2/3 of an hour = 1/20 mile
3/3 of an hour = 3/40 mile
Answer: A
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Indicate the answer choice that best completes the statement or answers the question Refer to the table that shows the highway f
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d) 33.1 miles per gallon

Step-by-step explanation:

Mean = sum/ number

Mean= (48+25+35+34+33+37+32+34+23+30)/10 = 33.1

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2 years ago
Santiago collects 435 cents in nickels.how many nickels does he collect?
Marianna [84]
He has 87 nickels (divide 435 by 5).
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A bag contains red and green marbles of equal size. There are more red marbles than green marbles in the bag. A marble is chosen
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3 years ago
Calculate the value of the sample variance. Round your answer to one decimal place. 9_5,9_5,2,9_5
Ugo [173]

Answer:

s^2 = 0.01

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}

First, we calculate the mean

\overline x = \frac{\sum x}{n}

\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}

\overline x = \frac{7.4}{4}

\overline x = 1.85

s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1} becomes

s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}

s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}

s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}

s^2 = \frac{0.03}{3}

s^2 = 0.01

<em>Hence, the variance is 0.01</em>

5 0
2 years ago
The ordered pair ( x + 4, y + 6) was used to translate an object. To find the pre-image of the object, you would need to move __
Harman [31]
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5 0
3 years ago
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