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4 years ago

5

Simplify the expression into form a+bi, where rational numbers (4-i)(-3+7i) - 7i(8+2i)

1 answer:

yawa3891 [41]4 years ago

3 0

Answer:

-12+28i+3i-7i-65i+28

14 -41i

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4. If y varies directly as x and y = 72 when x = 6 find y when x = 4.

Jet001 [13]

You would do 72 / 6 to find how many y per x which is 12, and multiply that which is 48.

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3 years ago

PLS HELP WILL MARK YOU BRAINLIEST!!<br> No fake answers pls

aleksklad [387]

Answer:

so as a result b, d is an example of linear inequality

Step-by-step explanation:

a. cant be done so not a linear inequality

b. x<2/7

c.x=12/11 but it has "=", so not a linear inequality; it becomes a linear equation

d. x<(2-3y)/4

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3 years ago

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Which is greater 13.6 or 13.06

slava [35]

13.6 is greater bcuz it is 13.60 not 13.06

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3 years ago

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stealth61 [152]

What are the questions for k and l?

But for the last one:

If you multiplied the dimensions of a cylinder by 1/3, you would get a cone because that is the formula for a cone.

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3 years ago

8≥x+4>5 i need answer

dexar [7]

Answer:

1 < x ≤ 4

Step-by-step explanation:

Given

8 ≥ x + 4 > 5 ( subtract 4 from each of the 3 intervals )

4 ≥ x > 1

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1 < x ≤ 4

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3 years ago