2 years ago

Simplify -3+6i-(-5-3i)-8i

Mathematics

1 answer:

borishaifa [10]2 years ago

4 0

Answer:

2 +i

Step-by-step explanation:

-3+6i-(-5-3i)-8i

Distribute the minus sign

-3 +6i +5 +3i -8i

Combine like terms

-3+5 +6i +3i -8i

2 +i

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3 years ago

the length of a rectangle is 6in.more than than its width .Its area is 50 sq.in Find the width of the rectangle....

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L=6+W
A=LW
sub 6+W for L
A=(6+W)(W)
expand
oh, A=50
50=W²+6W
minus 50 both sides
0=W²+6W-50
we gots to use quadratic formula
for
aW²+bW+c=0
W= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$
we got
a=1
b=6
c=-50

W= $\frac{-(6)+/- \sqrt{(6)^2-4(1)(-50)} }{2(1)}$
W= $\frac{-6+/- \sqrt{36+200} }{2}$
W= $\frac{-6+/- \sqrt{236} }{2}$
W= $\frac{-6+/- 2\sqrt{59} }{2}$
W= $-3+/- \sqrt{59}$

W= $-3+ \sqrt{59}$ or W= $-3- \sqrt{59}$
aprox
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2 years ago

What is the solution to the equation 3 − 4(2m + 6) + 3m = −16? (put number answers only)

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3. 2

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2 years ago

Simplify -3+6i-(-5-3i)-8i​

Simplify -3+6i-(-5-3i)-8i