Find the lowest common multiple of 3 and 5, that is 15
the lights will blink together every 15 seconds
in 1 minute blink together = 4 times
that is at 15, 30, 45 and 60
Ms. Taylor's students give cards to each of
1 answer:
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Answer:
A. x equals 5 plus or minus the square root of thirty-three all over 2
Step-by-step explanation:
Let's move all the terms to one side:
Now, we want to use the quadratic formula, which states that for a quadratic equation of the form , the roots can be found with the equation:
or
.
Here, a = 1, b = -5, and c = -2, so plug these in:
OR
Thus, the answer is A.
Hope this helps!