Answer:
Step-by-step explanation:
weight (x) 
12.05 0.00123
12 0.00019
11.96 0.00292
12.14 0.0159
12.12 0.00112
11.97 0.0019
11.96 0.0029
12.11 0.0092
11.94 0.0055
11.82 0.038
12 0.00019
12.18 0.028
11.91 0.0108
12.06 0.0021
11.99 0.0029

Sample size = 15

Sample standard deviation











replacing our values:



Answer:
1017in^3
Step-by-step explanation:
The result of multiplying the polynomials is (2x + 3) (-x + 2y - 4) = -2x² + 4xy - 11x + 6y - 12
<h3>How to multiply the
polynomials?</h3>
The polynomial expression is given as
(2x + 3) (-x + 2y - 4)
Expand the brackets in the above polynomial expression
So, we have
(2x + 3) (-x + 2y - 4) = 2x * (-x + 2y - 4) + 3 * (-x + 2y - 4)
Open the brackets in the above polynomial expression
So, we have
(2x + 3) (-x + 2y - 4) = -2x² + 4xy - 8x + -3x + 6y - 12
Evaluate the like terms in the above polynomial expression
So, we have
(2x + 3) (-x + 2y - 4) = -2x² + 4xy - 11x + 6y - 12
Hence, the solution is -2x² + 4xy - 11x + 6y - 12
Read more about polynomials at
brainly.com/question/17517586
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Answer:
b. Steve's Scratch and Dent.
Step-by-step explanation:
Tom should purchase his washing machine from Steve's Scratch and Dent.