3 years ago

Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices.

1 answer:

6 0

8x - 2y = 5 multiply by 3
-12x + 3y = 7 multiply by 2 giving:-

24x - 6y = 15
-24x + 6y = 14

adding these 2 equations:-

0 = 29

This is nonsense So there are no solutions to this system of equatios

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Divide the following complex numbers: (5-i)/(4+3i)

skelet666 [1.2K]

Answer:

$\frac{17}{25} -\frac{19}{25} i$

Step-by-step explanation:

$\frac{5-i}{4+3i}$

$= \frac{17}{25} -\frac{19}{25} i$

7 0

3 years ago

When 0.5(20x – 50y + 36) – 0.25(–100x + 40y – 12) is simplified, what is the resulting expression? 10 x minus 25 y + 18 minus 25

yaroslaw [1]

Answer:

The answer to your question is 35x - 35y + 21

Step-by-step explanation:

Data

Simplify 0.5(20x - 50y + 36) - 0.25(-100x + 40y - 12)

Expand

10x - 25y + 18 + 25x - 10y + 3

Group like terms

(10x + 25x) + (-25y - 10y) + (18 + 3)

Result

35x - 35y + 21

The answer is the last choice

4 0

3 years ago

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Tom [10]

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You have to do length times base times height to get your answer

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3 years ago

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One times a number x, plus 2 times a number y, equals 9. Negative one times x minus 3 times y equals -14. What are the numbers?

Romashka [77]

The answer to the first problem is B

4 0

3 years ago

Factor completely, then place the answer in the proper location on the grid. a ^2 - 25b ^2

nata0808 [166]

The answer:
a^2−25b^2
or
2(a-25b)

Hope this helps!

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4 years ago

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