Answer:
see below
Step-by-step explanation:
Use the distributive property to eliminate parentheses. Remember that the product (-1)(-1) is 1.
a-(1-b)+1 = a -1 +b +1 = a + b . . . . this one
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-(1-a)-b+1 = -1 +a -b +1 = a - b
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(a-1)-(b-1) = a - 1 - b + 1 = a - b
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a-(-b-1)+1 = a +b +1 +1 = a + b + 2
The typical average price of gasoline should be $2.81 and not $2.69 because $2.69 is not the average of the sampled prices.
<h3>What is the mean of the sample?</h3>
We are given the prices of a gallon of gasoline from 5 gas stations surveyed as; $2.79, $2.99, $2.69, $2.89, and $2.69.
Thus, to calculate the mean, we will use the formula;
Mean = ∑x/n
Mean = (2.79 + 2.99 + 2.69 + 2.89 + 2.69)/5
Mean = 14.05/5
Mean = $2.81
Thus, the typical average price of gasoline should be $2.81 and not $2.69
Read more about average mean at; brainly.com/question/20118982
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Answer:
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Step-by-step explanation:
Answer: 7c=91
Step-by-step explanation: Product means multiplication so Carlos' height- "c" times 7 equals 91.