Solve the system: 3x + 1y = 8 and 3x – 2y = 11.
Correct answer(s):
- x = 3, y = -1
Subject
Advanced Mathematics
Practice related MCQ quizzes and improve step by step.
Practice by Education Level
Quizzes in Advanced Mathematics for Grade 8
Solve for x: 7x + 0 = 42.
Correct answer(s):
- 6
If f(x) = -4x – 6, find f(2).
Correct answer(s):
- -14
Solve the system: 2x + 3y = 17 and 2x – 3y = 11.
Correct answer(s):
- x = 7, y = 1
Simplify √24 as much as possible.
Correct answer(s):
- 2√6
A student can choose from 6 shirts, 2 pants, and 3 pairs of shoes. How many different outfits are possible?
Correct answer(s):
- 36
Find the range of the data set: 5, 14, 20, 27, 37.
Correct answer(s):
- 32
Factorize: x² + 20x + 100.
Correct answer(s):
- (x + 10)(x + 10)
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
Find the slope of the line passing through (-5, 1) and (-8, -1).
Correct answer(s):
- 2/3
In a class of 36 students, 17 study only Algebra, 9 study only Geometry, and 6 study both. How many study Algebra or Geometry?
Correct answer(s):
- 32
Simplify using exponent laws: (7^5)^2.
Correct answer(s):
- 7^10
Expand and simplify: (x – 8)².
Correct answer(s):
- x² - 16x + 64
Expand and simplify: (x + 1)².
Correct answer(s):
- x² + 2x + 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