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fenix001 [56]
3 years ago
14

Simplify the expression. Make sure to show all steps. Write in standard form 6•9i + (4i)(2i)

Mathematics
1 answer:
Alex73 [517]3 years ago
4 0
6 x 9 x i = 54i
4(i) x 2(i) = 8i^2
54i +8i^2= 8i^2 +54i
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Rewrite in simplest terms: <br> 10 ( 7 g − 9 h ) − 4 h − 8 ( − h + 8 g )
Ksju [112]

Answer:

6g -86h

Step-by-step explanation:

10( 7g-9h) -4h - 8(-h + 8g)

1) First, distribute the 10 and the -8 to the terms in the parentheses next to them. Remember, don't distribute to the -4h since it is not in the parentheses.  

10( 7g - 9h) -4h - 8(-h + 8g)\\70g - 90h-4h+8h-64g\\

2) Next, combine like terms. (Any terms that have the same variables must be added together by their coefficients.)

70g - 90h-4h+8h-64g\\\\70g-64g-90h-4h+8h\\6g-86h

There are no more like terms to combine, so 6g -86h is the answer.

5 0
3 years ago
How do you solve this
PilotLPTM [1.2K]
Pretty sure it’s -8
6 0
3 years ago
Which system of equations corresponds to this matrix multiplication operation
faltersainse [42]

Answer:

Option (B)

Step-by-step explanation:

\begin{bmatrix}5 & 2 & 1\\ 7 & -5 & 2\\ -5 & 3 & 1\end{bmatrix}\times \begin{bmatrix}x\\ y\\ z\end{bmatrix}=\begin{bmatrix}16\\ 3\\ 12\end{bmatrix}

By applying multiplication property of the matrices,

\begin{bmatrix}(5x+2y+z)\\ (7x-5y+2z)\\(-5x+3y+z) \end{bmatrix}=\begin{bmatrix}16\\ 3\\ 12\end{bmatrix}

Therefore, system of equations formed will be,

5x + 2y + z = 16

7x - 5y + 2z = 3

-5x + 3y + z = 12

Option (B) will be the correct option.

3 0
2 years ago
Read 2 more answers
A circle has its center at the point X, and points A, W, and Y lie on the circle. Which line segment could not be a chord of the
Mumz [18]

Answer:

  A. XY

Step-by-step explanation:

A chord has both ends on the circle. Point X is not on the circle so segment XY is not a chord.

7 0
3 years ago
I don't get this one plz help
ololo11 [35]
Isocoleese means 2 angles are same, normally the base angles

so since it says they measure 42
rememeber that all angles in traingle add to 180
so base angles+vertex angle=180
base angles aer both 42 so
2 times 42+vertex angle=180
42 times 2=84
so
if veretx angle=z then
84+z=180


answer is B
3 0
3 years ago
Read 2 more answers
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