Follow PEMDAS. First is multiplication.
Follow the FOIL method: (First, Outside, Inside, Last)
<span>(8 - 3i) - (8 - 3i)(8 + 8i)
</span>8(8) = 64
8(8i) = 64i
-3i(8) = -24i
-3i(8i) = 24 (note: two "i"'s = -1)
Combine like terms
64 + 64i - 24i + 24
64 + 40i + 24
88 + 40i
Now subtract 88 + 40i from 8 - 3i
(8 - 3i) - (88 + 40i) = -80 - 43i (Note: the signs in the parenthesis change, because you are subtracting as a whole)
-80 - 43i is your answer
hope this helps
Answer:
w = 99
Step-by-step explanation:
45 = w - 54
99 = w
<em>good luck, i hope this helps :)</em>
Hello,
A cubic polynomial with -2,1,2 as roots is
f(x)=k*(x+2)(x+1)*(x-2)=k(x²-4)(x+1)=k(x^3+x²-4x-4)
Looking the answers ==>k=1
==>Answer A
Multiply 30 by 30%.
=30 * 30%
convert % to decimal (30% ÷ 100)
=30 * 0.30
=9
ANSWER: 9 is 30% of 30.
Hope this helps! :)
Ok so when you add fractions, the denominators have to be the same, therefore: (whole numbers you can still add)
5(1/2)+5(1/2)= 10(2/2), which equals to 11.
5(1/2) is also 5.5, since 1/2 is 50/100.
5.5 + 5.5 = 11
