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adell [148]
3 years ago
7

Find a degree 3 polynomial with real coefficients having zeros 4 and 2i and a lead coefficient of 1. Write P

Mathematics
1 answer:
iren2701 [21]3 years ago
4 0

Answer:

x^2 - 2xi - 4x +8i

Step-by-step explanation:

(x -4) (x -2i) (x+2i)

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2x+y=3<br>x-y= 1<br><br>solve the equation ​
svetlana [45]

Answer:

x = 4/3

y = 1/3

Step-by-step explanation:

System of equations! This is set up really well to make the second equation equal x then substitute.

x - y = 1

x = 1 + y

and then our substitution:

2 (1+y) + y = 3

and solve:

2 + 2y + y = 3

3y + 2 = 3

3y = 1

y = 1/3

And now we can substitute that value into one of our equations:

x - (1/3) = 1

x = 4/3

Next we should check by substituting these values into both of our equations:

2 (4/3) + (1/3) = 3

9 / 3 does equal 3 !

(4/3) - (1/3) does equal 1 !

Therefore, x = 4/3 , and y = 1/3

4 0
3 years ago
Read 2 more answers
Math Help? 20 Points
Pachacha [2.7K]

V= LWH so 3.75cm^3 or 3 (3/4)


Multiply those three sides and it comes out to 3.75


5 0
3 years ago
Please Complete the question.
Norma-Jean [14]

Answer:

0.0174 is the answer you are looking for

5 0
3 years ago
Help me please please
telo118 [61]

Answer:

see below

Step-by-step explanation:

Standard equation for a circle with center h,k and radius r

(x-h)^2 + (y-k)^2 = r^2

so for this one   center =  (1,2)   radius = 4

6 0
2 years ago
Numbers that are greater than 5 and less than 5.75
Goshia [24]
The easy way to think about this is what number comes between 5 and 7? The answer is 6 (but we have to consider that it's negative in this case.) So the answer is -6 Another way to look at it is with a number line (not to "Which number is greater than -7 and less than -5"? scale.)<===(-7)==(-6)==(-5)==(-3)==(-2)==(-1)==(0)==(1)==>Notice how -6 comes between the two numbers. -6 is larger than -7 (it's "less negative" -- "Which number is greater than -7 and less than -5"? closer to zero) -6 is less than -5 (it's "more negative" -- further away from zero)
5 0
3 years ago
Read 2 more answers
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