Out of that particular list, the only description
that applies to 2.5 is "rational".
(A) 5x+2y=21
(B) -2x+6y=-34
multiply (A) by - 3→ -15x - 6y = - 63 (C)
Now add (C) to (B):
-15x - 6y = - 63 (C)
-2x + 6y =-34 (B)
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-17x = - 97 and x = 97/17
Now replace x value in any of the equation and you'll find y = - 64/17
1st Answer (97/17 , - 64/17)
2nd Answer : 97/17 + (-64/17) = 97/17 - 64/17 = 33/17 ≈ 2
Answer:
pretty sure C
Step-by-step explanation:
sorry if im incorrect information
14. Is 25 percent
15. 20 percent
16.
There are no real numbers that can do that job.
The numbers are
<em> 1.5 + i √7.75</em>
and
<em>1.5 - i √7.75</em>
These are called 'complex numbers'. The symbol ' i ' stands for √-1 .
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If either the ' 3 ' or the ' 10 ' was actually supposed to be negative,
then the two numbers would be<em> 2 </em> and<em> -5 .</em>
