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ohaa [14]
3 years ago
8

What is the product of (4i) and (4+i)

Mathematics
2 answers:
Charra [1.4K]3 years ago
5 0

Answer:

-4 + 16 i

Step-by-step explanation:

You are dealing with imaginary numbers so i dont remember y but i know that it is that answer

Troyanec [42]3 years ago
3 0

Answer:

- 4 + 16i.

Step-by-step explanation:

4i(4 + i)

= 16i + 4i^2       Now i^2 = -1 so we have:

16i - 4   (answer)

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What is the product of (7x+3)^2
Natali [406]

Answer:

49x² + 42x + 9

Step-by-step explanation:

Given

(7x + 3)²

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Each term in the second factor is multiplied by each term in the first factor, that is

7x(7x + 3) + 3(7x + 3) ← distribute both parenthesis

= 49x² + 21x + 21x + 9 ← collect like terms

= 49x² + 42x + 9

7 0
3 years ago
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Answer:

12

Step-by-step explanation:

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How do i graph the equation y= -4x - 1
Serggg [28]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

Find the y-values corresponding to x-values of 0 and 1, then plot those points and draw a line through them.

For x=0, ...

  y = -4·0 -1 = -1 . . . . the point is (0, -1) . . . the y-intercept

For x=1, ...

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The attached graph shows these points and the line through them.

3 0
3 years ago
Lee wants to cut this piece of canvas into two rectangles that are 3×2 and 3×5. He wants the sum of the areas of the two small r
scoray [572]
First find the area of the large rectangle which is 90 by you times 3 and 3 which is 9 then you times 5 and 2 which is 10 after that u times 9 and 10 which is 90 So to make the small rectangle times 6 and 15 because 3 times 2 equals 6 and 5 times 3 equals 10 so that means the area of one small rectangle is 6 and the other rectangle us 15 then u multiple
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3 years ago
X= 0 y=3 what is the equation to the parallel line?
Semmy [17]

Answer:

Y - 3 - X = 0

Step-by-step explanation:

The points are (0,3)

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3 years ago
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