Answer:
You can tell whether or not something is positive or negative by looking at the specific number for example if you look at this number -5 you know its a negative number because it has a - sign.Although when its positive it does not have any kind of format of signs according to my calculations.
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Answer:
6.25 or 6 1/4
Step-by-step explanation:
because 50 divided by 8 is 6.25
Answer:
27,9
Step-by-step explanation:
x + y =36
x - y = 16
27 + 9 = 36
27 - 9 = 16
Any point on the x-axis beyond the point (4, 0) is a possible cordinate of R.
<em>(x - 5)(x + 5)</em>
- Step-by-step explanation:
<u><em> use formula </em></u>
<em>a² - b² = (a - b)(a + b)</em>
<em />
<em>x² - 25 = x² - 5² = (x - 5)(x + 5)</em>
