Which statement is true for the number 12?
Correct answer(s):
- 12 is even and divisible by 3
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Solve for x: 8x – 3 = -35.
Correct answer(s):
- -4
Find the range of the data set: 11, 15, 16, 22, 28.
Correct answer(s):
- 17
Solve the system: 2x + 3y = 12 and 1x – 1y = -4.
Correct answer(s):
- x = 0, y = 4
If f(x) = -2x – 6, find f(-1).
Correct answer(s):
- -4
Simplify using exponent laws: 2^9 ÷ 2^1.
Correct answer(s):
- 2^8
Factorize: x² – 81.
Correct answer(s):
- (x + 9)(x - 9)
The sequence is 3, 5, 7, 9, … . What is the 12th term?
Correct answer(s):
- 25
Expand and simplify: (x – 2)².
Correct answer(s):
- x² - 4x + 4
A student can choose from 4 shirts, 5 pants, and 1 pairs of shoes. How many different outfits are possible?
Correct answer(s):
- 20
If f(x) = 3x – 1, find f(6).
Correct answer(s):
- 17
A bag has 6 red, 3 blue, and 2 green marbles. What is the probability of choosing a red marble?
Correct answer(s):
- 6/11
If f(x) = 5x – 6, find f(-2).
Correct answer(s):
- -16
Solve for x: 8x – 9 = 47.
Correct answer(s):
- 7
Expand and simplify: (x + 1)(x – 1).
Correct answer(s):
- x² - 1
Solve the system: 1x + 2y = 11 and 2x – 1y = -3.
Correct answer(s):
- x = 1, y = 5
Add the matrices [[7, 5], [1, -3]] and [[5, 3], [5, 7]].
Correct answer(s):
- [[12, 8], [6, 4]]
Find the median of the data set: 16, 27, 29, 34, 38.
Correct answer(s):
- 29
Let A = {1, 2, 9, 13, 17} and B = {9, 10, 13, 15, 17}. What is A ∩ B?
Correct answer(s):
- {9, 13, 17}
The sequence is 7, 5, 3, 1, … . What is the 10th term?
Correct answer(s):
- -11