Write 3.1e-05 in scientific notation.
Correct answer(s):
- 3.1 × 10^-5
MCQ Academy - English
Free Online MCQ Practice Tests in English
Latest Quizzes
Simplify using exponent laws: 3^8 × 3^1.
Correct answer(s):
- 3^9
Solve the inequality: 6x – 7 > 17.
Correct answer(s):
- x > 4
Solve for x: 5x – 5 = -35.
Correct answer(s):
- -6
Write 9400 in scientific notation.
Correct answer(s):
- 9.4 × 10^3
Solve the system: 2x + 3y = -4 and 1x – 2y = -9.
Correct answer(s):
- x = -5, y = 2
If f(x) = -3x + 6, find f(-2).
Correct answer(s):
- 12
If f(x) = -2x + 7, find f(4).
Correct answer(s):
- -1
If U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12} and A = {1, 3, 4, 5, 12}, what is A′?
Correct answer(s):
- {2, 6, 7, 8, 9, 10, 11}
A student can choose from 3 shirts, 3 pants, and 4 pairs of shoes. How many different outfits are possible?
Correct answer(s):
- 36
The sequence is 7, 9, 11, 13, … . What is the 10th term?
Correct answer(s):
- 25
Expand and simplify: (x + 8)².
Correct answer(s):
- x² + 16x + 64
Factorize completely: 50x + 5.
Correct answer(s):
- 5(10x + 1)
Solve for x: 5x – 9 = 11.
Correct answer(s):
- 4
A student can choose from 6 shirts, 4 pants, and 1 pairs of shoes. How many different outfits are possible?
Correct answer(s):
- 24
Solve the inequality: 5x – 1 < 24.
Correct answer(s):
- x < 5
Solve for x: 12x + 16 = 76.
Correct answer(s):
- 5
Solve the inequality: 4x + 7 > 55.
Correct answer(s):
- x > 12
Find the mode of the data set: 12, 27, 35, 37, 39, 39.
Correct answer(s):
- 39
Find the slope of the line passing through (-2, -6) and (-5, -9).
Correct answer(s):
- 1