SAT Math

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8 Terms

1
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What does b²-4ac >0 mean?

There are 2 real solutions

2
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What does b²-4ac < 0 mean?

0 real solutions (2 imaginary ones)

3
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What does b²-4ac = 0 mean?

One solution

4
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What does mean > median mean?

Graph is skewed right (left high)

5
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What does median > mean mean?

Graph is skewed left (right high)

6
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When can you generalize study samples?

When the participants were selected via random sampling

7
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What is circle equation?

(x-h)²+(y-k)²=r²

8
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what does t/12 mean in 1200(1.05)t/12

5% growth once every 12 time units