(99(82)+99)/100 is the later mean of scores= 82.17
And the current mean of 82
82.17-82= 0.17 is the difference between the mean scores
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:
8
Step-by-step explanation:
3(x-2) = 18
=> 3x - 6 = 18
=> 3x = 24
=> x = 8 (Ans)
Answer: 123$
Step-by-step explanation:
I dont even know but this gives me free five points
