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Goshia [24]
4 years ago
14

Evaluate (–1)8 + (–1)7 + –16 + –14 – (–1)2.

Mathematics
1 answer:
ohaa [14]4 years ago
8 0

Answer:

Step-by-step explanation:

(–1)8 + (–1)7 + –16 + –14 – (–1)2 = -8 -7 -16 -14 +2 = -45+2 = - 43

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System A
Sonbull [250]

1.  System B from System A by replacing one equation with itself where the same quantity is added to both sides

2. Yes, both system A and system B are equivalent and therefore has the same solution

<h3>How to prove the statements</h3>

System A

x − 4y= 1

5x + 6y= −5

System B

x = 1+4y

5x + 6y= −5

1. System B can be gotten from system A by

from the first equation of A

x − 4y= 1

Make 'x' subject of formula

x = 1 + 4y

This makes it equal to tat of system B

Thus, replacing one equation with itself where the same quantity is added to both sides

2. System A

x = 1 + 4y

5x + 6y= −5

System B

x = 1 + 4y

5x + 6y= −5

From the above equations, we can see that both system A and system B are equivalent and therefore has the same solution.

Learn more about linear equations here:

brainly.com/question/4074386

#SPJ1

4 0
2 years ago
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The factored version of the equation is (a-5) (a+4)

To the rest of the questions you should add an image to help visualize what you are asking us.

hope this helps !
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I NEED HELP NOW!!!<br><br> Which expression is equivalent to 7(k^2) where k is an even number?
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Step-by-step explanation:

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