Which value makes 3n – 5 = 7 true?
Correct answer(s):
- 4
Subject
Mathematics
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For b = 2, is the equation 6b + 1 = 13 true?
Correct answer(s):
- True
For a = 10, choose the correct comparison between 5a + 5 and 6a – 5.
Correct answer(s):
- =
Which value makes 4t – 3 = 33 true?
Correct answer(s):
- 9
For r = 8, is the equation 3r + 1 = 27 true?
Correct answer(s):
- False
Expand: (a – 3)^2.
Correct answer(s):
- a^2 - 6a + 9
Simplify: m^4 × m^4.
Correct answer(s):
- m^8
A line has slope -1 and y-intercept 0. Which equation represents the line?
Correct answer(s):
- y = -x
Find an expression for the nth term of the arithmetic sequence: 2, 0, -2, -4, …
Correct answer(s):
- -2n + 4
Solve the inequality: -6x + 1 ≤ -17.
Correct answer(s):
- x ≥ 3
Evaluate 3x + 6y + 4 when x = 3 and y = -1.
Correct answer(s):
- 7
Expand and simplify: -2(6x + 5).
Correct answer(s):
- -12x - 10
A shop charges a fixed delivery fee of 6 taka plus 7 taka for each folder. If the total cost is 62 taka, how many folders were ordered?
Correct answer(s):
- 8
What value of x makes the equation 6x – 16 = 44 true?
Correct answer(s):
- 10
For the expression 1/(t – -6), which value of t is not allowed?
Correct answer(s):
- -6
In the expression 3a + 4b – 9, which term is the constant term?
Correct answer(s):
- -9
A linear rule produces these values: x=-4 gives y=-17, x=3 gives y=11, x=-2 gives y=-9. Which rule matches the table?
Correct answer(s):
- y = 4x - 1
Select all expressions equivalent to 6x + 36.
Correct answer(s):
- 6(x + 6)
- 6x + 36
The sides of a rectangle are (9x + 8) cm and (6x + 3) cm. Which expression represents its area?
Correct answer(s):
- 54x^2 + 75x + 24
7 years from now, Rina’s father’s age will be 3 times Rina’s age. Rina is now 18. How old is her father now?
Correct answer(s):
- 68