Answer:
-1, 6
Step-by-step explanation:
x + y = 5
xy = -6
Take first equation and rewrite it. y = -x + 5
Then substitute the new equation in the second one.
x(-x + 5) = -6
-x^2 + 5x + 6 = 0
Divide by -1
x^2 - 5x - 6
(x + 1)(x - 6) = 0
x = -1, 6
Answer:
In the year 2010
Step-by-step explanation:
we have
where
A is the population in thousands
t is the number of years since 1998
so
For A=297 thousands
substitute and solve for t
simplify
Apply ln both sides
Remember that
1998+12=2010
Answer:
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Step-by-step explanation:
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I believe that it is equal to 66. :)
Answer:
60%
Step-by-step explanation:
To obtain the percentage, express her score as a fraction of the total and multiply by 100%, that is
percentage score = × 100% = 60%