Let Alex's age is x and June's age is y y - x = 7 .........(1)
(x+5) + (y+5) =31
x + y = 21 .........(2)
by adding 1 and 2
2y = 28
y = 14
x = 7
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Answer:
-3 ?? i think this is correct
Step-by-step explanation:
i did 3x-1
Answer:
The domain of this function is [0, infinity ).
Step-by-step explanation:
Here the y-axis is the vertical asymptote. We can therefore deduce that x may never be zero or negative. The domain of this function is [0, infinity ).
Answer:
C. √105
Step-by-step explanation:
105 = 3·5·7 has no square factors, so its root cannot be simplified.
√105 simplified is √105.