70 + (5 x 8) = 110
5 + 5 x 8 = 45
I'm going to assume the polynomial in question is 2x7+(3-2x3)+(5x8-4x) Expanding out the polynomial: 2x7+3-2x3+5x8-4x Order the terms by powers of x: 5x8+2x7-2x3-4x+3 Since 8 is the highest power of x, the degree of the polynomial is 8.
x = 8y = 6(5x8) + (3x6) = 58(5x8) - (3x6) = 22
Since 5 is written 8 times just do 5x8 which is 40 and that is your answer.
40
70 + 70 + 50 + 50 = 240
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70 + 80 + 70 + 30+ 80 + 80+ 80 = 490
57. ((5X8)/4)(5+7)=120, (5X8)/4X5)+7=2+7=9, (5X8)/(4X5+7)=1.481... Take your pick. - - - Without any parentheses, the order of mathematical operations is - Multiplication, Division, Addition and Subtraction. Following these mandates, 57 is the proper answer.
The mean value of 100, 70, 70, and 20 is 65
210 - (20+5)*8 = 210 - 25*8 = 210 - 200 = 10
40