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ruslelena [56]
3 years ago
12

Which is equivalent to (-2 + 4i)(7 + 2i)?

Mathematics
1 answer:
MatroZZZ [7]3 years ago
4 0
<span> D) -22 + 24i ,,,,.............</span>
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Solve c =(a² + 3b)/4 for b.<br><br>Bruv take all my points I literally blow at math :'(​
Sati [7]

Answer:

b=\frac{4c-a^{2} }{3}

Step-by-step explanation:

First: multiply both sides by 4. 4 times c is 4c and the other sides cancels out as you are doing the inverse operation of division

Then, you have 4c=a^{2} +3b

Subtract both sides by a squared

DO NOT TAKE THE SQUARE ROOT! This is because it is a squared plus 3b so you have to do the inverse of addition

From that you get 4c-a^{2} =3b

Finally, divide both sides by 3.

You get  b=\frac{4c-a^{2} }{3}

4 0
3 years ago
Write an equation for a like that is parallel to the given point. Explain how you found the equation.
pishuonlain [190]

Answer:

The line would be y = 2x + 5

Step-by-step explanation:

To find a parallel line, we first need to note that the slope of the original line is 2. This means the slope of our new line will also be 2 because parallel lines have the same slope.

So we use the slope we found along with the point given in point-slope form. Then we solve for y.

y - y1 = m(x - x1)

y - 11 = 2(x - 3)

y - 11 = 2x - 6

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7 0
2 years ago
HELP PLS!!!!! One link in a chain was made from a cylinder that has a radius of 3 cm and a height of 25 cm. How much plastic coa
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Answer:

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Step-by-step explanation:

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2(3.14)(3)(25)=

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laiz [17]

Answer:

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