3/3/25 TSI Flashcard

Flashcard
•
Mathematics
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the mean of a set of numbers?
Back
The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.
2.
FLASHCARD QUESTION
Front
How do you convert a negative exponent to a positive exponent?
Back
To convert a negative exponent to a positive exponent, take the reciprocal of the base raised to the positive exponent. For example, a^-n = 1/a^n.
3.
FLASHCARD QUESTION
Front
What is the product of powers property in exponents?
Back
The product of powers property states that when multiplying two powers with the same base, you add the exponents: a^m * a^n = a^(m+n).
4.
FLASHCARD QUESTION
Front
What is the equation of a line in slope-intercept form?
Back
The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
5.
FLASHCARD QUESTION
Front
What does it mean for y to vary inversely with x?
Back
If y varies inversely with x, it means that as x increases, y decreases, and vice versa. The relationship can be expressed as y = k/x, where k is a constant.
6.
FLASHCARD QUESTION
Front
How do you find the value of a variable in a set of numbers given the mean?
Back
To find the value of a variable in a set of numbers given the mean, use the formula: Mean = (Sum of all values) / (Number of values). Rearrange to find the unknown value.
7.
FLASHCARD QUESTION
Front
What is the value of 9^-3?
Back
9^-3 = 1/9^3 = 1/729.
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