The sequence is 3, 10, 17, 24, … . What is the 15th term?
Correct answer(s):
- 101
Subject
Mathematics
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Simplify √343 as much as possible.
Correct answer(s):
- 7√7
Solve for x: 6x – 1 = -1.
Correct answer(s):
- 0
Simplify √117 as much as possible.
Correct answer(s):
- 3√13
Solve for x: 3x + 5 = -10.
Correct answer(s):
- -5
Simplify using exponent laws: 10^7 × 10^2.
Correct answer(s):
- 10^9
Expand and simplify: (x – 6)².
Correct answer(s):
- x² - 12x + 36
Solve the system: 3x + 1y = 8 and 3x – 2y = 11.
Correct answer(s):
- x = 3, y = -1
Let A = {1, 5, 11, 12, 13} and B = {3, 6, 8, 10, 11}. What is A ∪ B?
Correct answer(s):
- {1, 3, 5, 6, 8, 10, 11, 12, 13}
Which of the following numbers are prime numbers? Select all correct answers.
Correct answer(s):
- 2
- 3
- 5
Simplify √112 as much as possible.
Correct answer(s):
- 4√7
Expand and simplify: (x – 5)².
Correct answer(s):
- x² - 10x + 25
Solve for x: 9x + 7 = 43.
Correct answer(s):
- 4
Add the matrices [[-2, 0], [-4, 5]] and [[-1, 3], [1, 4]].
Correct answer(s):
- [[-3, 3], [-3, 9]]
Simplify √63 as much as possible.
Correct answer(s):
- 3√7
Solve the inequality: 7x + 9 ≤ 37.
Correct answer(s):
- x ≤ 4
If U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12} and A = {3, 7, 9, 10, 11}, what is A′?
Correct answer(s):
- {1, 2, 4, 5, 6, 8, 12}
A fair 5-section spinner and a fair 5-section spinner are spun once. What is the probability of getting one chosen section on each spinner?
Correct answer(s):
- 1/25
If f(x) = 5x + 7, find f(-5).
Correct answer(s):
- -18
Simplify using exponent laws: 2^4 × 2^4.
Correct answer(s):
- 2^8