math
Typo x + 6 -6 = 0-6 x = -6
math
x^2 + 9x +16 = x + 4 x^2 + 9x -x + 16 - 4 = -(x+4) x^2 + 8x + 12 = 0 (x +2)(x+6) = 0 solve for x x + 2-2 = 0 -2 x = -2 x - 6 -6 = 0-6 x = -6 (-2, 2), (-6 ,-2)
math check
because you multiply 13.3 sqrt (51) but it is division. 13.3/sqrt(51).
math check
z= (79.7- 81)/(13.3/sqrt(51)) z= -1.3/1.862372512 z = -0 .698 or -0.70
math check
Yes. your anwser is wrong.
make check
za/2 = 1.645
Math 10
c + b =120 21c +15b = 2244 c = 120-b 21(120-b ) + 15b = 2244 2520 -21b + 15b = 2244 2520 -6b = 2244 2520-2520 -6b = 2244-2520 -6b = -276 b = 46 c = 120 -46 c = 74 Cashew nuts = 74kg Brazil nuts = 46kg
Math 10
c + b =120 21c +1
Math
f(x) = 4 − 6x + 7x2 7(x + h)^2 -6(x+h) +4-(7x^2 -6x +4))/h 7( x^2 xh+ xh + h^2) -6x -6h + 4 -7x^2 +6x -4))/h (7x^2 +14xh + 7h^2 -6x -6h +4 -7x^2 + 6x -4)/h (14xh + 7h^2 -6h)/h h(14x +7h -6)/h 14x + 7h -6 lim(h->0) 14x + 7h -6 = 14x -6
Math
P(Ā) = 1- P(A) P(Ā) = 1- 0.8 P(Ā) = 0.2
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