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Rudiy27
3 years ago
13

Help me if u can please

Mathematics
2 answers:
schepotkina [342]3 years ago
8 0
A is the right answer:))
snow_tiger [21]3 years ago
5 0

Answer:

b is the incorrect because two negatives make a positive when multiplied.It should be -3x+6

A is correct:)

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The answer is 400 because u multiply 8 x 10= 80 x 5=400 
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1/3

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What is the value of the xX coordinate that is 9 units to the left and 3 units up from (2, –8)?
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(-6, -5)

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Divide.<br> a.1 − 2i/2i<br> b. 5 − 2i/5 + 2i<br> c.√3 − 2i/−2 − √3i
Umnica [9.8K]

Answer:

(a) \frac{-1i}{2}-1[/tex]

(b) \frac{20i+21}{29}

(c) i

Step-by-step explanation:

We have to perform division

(a) \frac{1-2i}{2i}

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\frac{1-2i}{2i}=\frac{1}{2i}-\frac{2i}{2i}=\frac{-1i}{2}-1

(b) We have given expression \frac{5-2i}{5+2i}

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(c) We have given expression \frac{\sqrt{3}-2i}{-2-\sqrt{3i}}

After rationalizing

\frac{\sqrt{3}-2i}{-2-\sqrt{3i}}\times \frac{-2+\sqrt{3i}}{-2+\sqrt{3i}}=\frac{-2\sqrt{3}+7i+2\sqrt{3}}{7}=\frac{7i}{7}=i

5 0
3 years ago
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