Christina T.

Tutor for 8 years, Current High School Teacher

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SAT II Mathematics Level 2

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Question:

What is the distance in space between the points with coordinates (- 3, 6, 7) and (2, - 1, 4)?

Christina T.

Answer:

9.11

ACT

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Question:

How many irrational numbers are there between 1 and 6?

Christina T.

Answer:

1 and 6 are real numbers and that there is an infinite number of irrational numbers between any two real numbers.

Algebra

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Question:

Ms. Tenuta posts a picture on Facebook and asks people to share it. On the first day, the picture had 3 shares, and on the third day, it had 27 shares. Using an exponential model, predict how many shares she will have on day 4.

Christina T.

Answer:

The ratio of change is 3. The number of shares on day 4 is 81.

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