Multiply the matrix [[5, 1], [0, -5]] by -2.
Correct answer(s):
- [[-10, -2], [0, 10]]
Subject
Advanced Mathematics
Practice related MCQ quizzes and improve step by step.
Quizzes in Advanced Mathematics
Find the slope of the line passing through (1, 0) and (-1, 5).
Correct answer(s):
- -5/2
If U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12} and A = {3, 4, 7, 8, 9}, what is A′?
Correct answer(s):
- {1, 2, 5, 6, 10, 11, 12}
Factorize completely: 30x + 50.
Correct answer(s):
- 5(6x + 10)
In a class of 45 students, 10 study only Algebra, 15 study only Geometry, and 12 study both. How many study Algebra or Geometry?
Correct answer(s):
- 37
In a class of 39 students, 18 study only Algebra, 7 study only Geometry, and 8 study both. How many study Algebra or Geometry?
Correct answer(s):
- 33
The sequence is 9, 11, 13, 15, … . What is the 12th term?
Correct answer(s):
- 31
Solve the system: 1x + 2y = 9 and 2x – 3y = -31.
Correct answer(s):
- x = -5, y = 7
Find the slope of the line passing through (-2, -6) and (-5, -1).
Correct answer(s):
- -5/3
Find the slope of the line passing through (-4, -6) and (-7, -1).
Correct answer(s):
- -5/3
Solve the system: 2x + 3y = 10 and 2x – 1y = -6.
Correct answer(s):
- x = -1, y = 4
Find the mean of the data set: 4, 9, 18, 28, 32.
Correct answer(s):
- 91/5
If f(x) = 6x + 6, find f(-4).
Correct answer(s):
- -18
Factorize: x² + 14x + 45.
Correct answer(s):
- (x + 9)(x + 5)
Find the mode of the data set: 6, 21, 25, 25, 26, 31.
Correct answer(s):
- 25
Find the slope of the line passing through (3, 5) and (7, 7).
Correct answer(s):
- 1/2
Solve the system: 2x + 3y = 11 and 2x – 3y = -31.
Correct answer(s):
- x = -5, y = 7
A fair 5-section spinner and a fair 2-section spinner are spun once. What is the probability of getting one chosen section on each spinner?
Correct answer(s):
- 1/10
Simplify √28 as much as possible.
Correct answer(s):
- 2√7
Let A = {5, 9, 11, 12, 15, 16} and B = {4, 5, 9, 12, 16}. What is A ∩ B?
Correct answer(s):
- {5, 9, 12, 16}