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HACTEHA [7]
2 years ago
14

What is the solution to the equation? Equations with Mixed Operations A. z = 50 B. z = 44 C. z = –2 D. z = – 40

Mathematics
1 answer:
Angelina_Jolie [31]2 years ago
5 0
Your answer will be C. i hope i helped!!


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(5x+3)(7x-7) how do find x
Delvig [45]

We can use the FOIL method to solve.

(5x + 3)(7x - 7)

(5x * 7x) + (5x * -7) + (3 * 7x) + (3 * -7)

35x - 35x + 21x - 21

0 + 0

0

Best of Luck!

6 0
2 years ago
What are three ordered pairs that have a proportional relationship
MaRussiya [10]
1-3
2-6
3-9 This is an example of porportional.

1-4
2-3
3-9 There is no pattern so thin is Non-Porportional.
7 0
3 years ago
If vector c = vector b + vector a, under what circumstance does c = b+a ?
Vitek1552 [10]
The sum of the magnitudes will be the magnitude of the sum when the vectors have the same direction.
6 0
3 years ago
How to solve x+3y=3 and 2x-3y=-12
Sever21 [200]
Get x on one side then you can use substitution
So, change x+3y=3 to x= -3y+3
Then plug in x to other equation to find y
2(-3y +3)-3y=-12
-6y + 6 -3y = -12
-9y = -18
Divide both sides by negative nine to find y
y = 2
Then plug in to original equation to find x
x + 3(2) = 3
x + 6 = 3
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3 0
3 years ago
Read 2 more answers
30 POINTS!!! PLEASE HELP ME
Ludmilka [50]

Remark

All you need is 2 points to get the line of the equation. One is itself (B and B') is the same in both triangles. Now we need to find one more point. Since this is a reflection, the midpoint between C and C' is the second point. That choice of C and C' is completely arbitrary.

Step One

y intercept of the line. That point is B which is (0,1)

Step Two

Find the midpoint between C and C'

C is (-4,-2) and C' is ( 0 , - 4) The midpoint is

C" = (x2 + x1)/2 , (y2 + y1)/2

C" = (-4 + 0 )/2 , (-2 + - 4) / 2

C" = (-4)/2 , - 6/2

C" = (-2, - 3) C" is the midpoint between C and C'

Step 3

Find the equation of the line.

y = ax + b We are trying to find A

y = ax + 1

-3 = a(-2) + 1

-3 - 1 = a(-2)

- 4 = a(-2) Divide by -2

-4/-2 = a

a = 2

The slope of the line is 2

Answer

y = 2x + 1

6 0
3 years ago
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