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olga2289 [7]
3 years ago
6

Which is equal to (2+3i)+(-4+i)? A, -2-4i B, -2-2i C, -2+2i D, -2+4i E, 6+4i

Mathematics
2 answers:
Darya [45]3 years ago
8 0

Answer:

-2+4i the ansewr is D.

Step-by-step explanation:

Verify Left hand:

Simplify the following:

2 + 3 i - 4 + i

2 + 3 i - 4 + i = (2 - 4) + (3 i + i):

(3 i + i) + (2 - 4)

2 - 4 = -2:

-2 + (3 i + i)

3 i + i = 4 i:

4 i - 2

Factor 2 out of 4 i - 2 giving 2 (2 i - 1):

Answer: 2 (2 i - 1)

Verify Right Hand:

Simplify the following:

4 i - 2

Factor 2 out of 4 i - 2 giving 2 (2 i - 1):

Answer: 2 (2 i - 1)

inysia [295]3 years ago
6 0

Answer:

D. -2+4i

Step-by-step explanation:

just combine like terms :)

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The equation represents an ellipse. which point is the center of the ellipse? (−9, 5) (−5, 9) (5, −9) (9, −5)
Igoryamba

The point which is the center of the ellipse whose equation is; (y+5)²/121+(x-9)²/49=1 s in the task content is; (-5, 9).

<h3>Which point represents the center of the ellipse whose equation is given as; (y+5)²/121+(x-9)²/49=1?</h3>

It follows from convention that the equation of an ellipse usually takes the form;

(y-h)²/a²+(x-k)²/b²=1 in which case, the center of the ellipse is given by the point; (h, k).

On this note, By comparison of the actual equation and the standard equation, it follows that;

+5 = -h and consequently, h = -5,

-9 = -k and consequently, k = 9.

Ultimately, the point which is the center of the

ellipse is; (-5, 9).

Remark: The equation of the ellipse which is missing in the task content is; (y+5)²/121+(x-9)²/49=1

Read more on center of an ellipse;

brainly.com/question/19507943

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6 0
2 years ago
Please help I need the equation for it
MissTica

simply need to fill in Y=Mx+b!

slope is 1/2, the and b (the y intercept) is 0! so y=1/2x + 0 or y=1/2x :)

5 0
3 years ago
A six-sided cube is rolled. Find the probability of P (6).
Lemur [1.5K]
The answer is A.

There is 1 desired outcome (6) and 6 possibilities.

1/6
1/6 = .16

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Hope this helps!
4 0
4 years ago
Find the perimeter of the polygon with the given vertices x(-1,3) y(3,0) z(-1,-2)
Dvinal [7]

x(-1,3) y(3,0) z(-1,-2)

xy

m = (3 + 1)/(0 - 3) = 4/-3 = -4/3

y - 3 = -4/3(x + 1)

y - 3 = -4/3x - 4/3

xy: y = -4/3x + 5/3

yz

m = (0 + 2)/(3 + 1) = 2/4 = 1/2

y = 1/2(x - 3)

yz: y = 1/2x - 3/2

xz

m = (3 + 2)/(-1 + 1) = 5/0 = undefined

y - 3 = undefined(x + 1)

xz: x = -1

xy: y = -4x/3 + 5/3

yz: y = x/2 - 3/2

xz: x = -1

4 0
3 years ago
Help what’s the answer
Tom [10]
The answer is 474 i believe
7 0
3 years ago
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