<span>9x(2+y)
= 18x + 9xy
answer
</span><span>18x+(9x⋅y)
</span><span>(9x⋅2)+(9x⋅y) 1</span>
a) x/2 + 4y
= 10/2 + 4*2 = 5 + 8 = 13
b) 3 (p + 2q)
= 3 (8 + 2*3) = 3 (8 + 6 ) = 3* 14 = 42
c) m + n ( q + 3)
= 4.5 + 6 (-1 + 3) = 10.5 * 2 = 21
d) (u+v)^x
= (7 + (-4) ) ^ 4 = (7-4)^4 = 3^4 = 81
Hope it helps u
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The sample mean from a group of observations is an estimate of the population mean . Given a sample of size n, consider n independent random variables X1, X2, ..., Xn, each corresponding to one randomly selected observation. Hope this helped:) Have a Great day!
