6 x -9 = -54
<span>6 + (-9) = -3
</span>x2<span> - 3x - 54 = 0
</span>
<span>(X + 6 ) (X - 9)
</span>
x2<span> - 3x - 54 = (X + 6 ) (X - 9)
=
6 & -9
</span>
Short Answer D
P(1) = 1(1+1)(2*1 + 1)/6
P(1) = 1(2)(2 +1) / 6
P(1) = 1(2)(3)/6
P(1) = 1
P(2) = 2(2+1)(2*2 + 1) / 6
P(2) = 2(3)(5) / 6
P(2) = 5 So this formula is adding as it goes along. To Find the Total all we need do is use the formula to calculate P(1) to P(7)
P(7) = 7*(7 + 1)(2*7 + 1)/6
P(7) = 7 * 8 * 15 / 6
P(7) = 7 * 4 * 5
P(7) = 140 <<<< Answer
A specific number with a percentage is equal to this number divided by 100 in decimals.
so 89%=89/100 =0.89