Mathematics, 16.02.2021 07:10, 130005401

1. Which of the following is NOT an algebraic expression? A. 7x + y
B. 3(m-n) C. X + 3 = 1
D. a + b
2. Find the value of (1 - 5)2
A. 36
B. 16
C.-16
D. -36
25
3. Evaluate:
22
B. 32
A. 64
D. 8
C. 16
4. In the expression, m2 - 3, if m= -2, then m2 - 3 = ?
A. -7
B.-1
C. 1
D. 7
5. What is the value of 12 + 13?
A. 1
B. 2
C. 3 3
D. 5
D. 20
6. If x = -2, what is the value of -5x2 ?
A -20
B. -10
C. 10
D. 8
7. If a = 3 and b = -1, find the value of 2a - 2b.
A-8
B. -4
C.4
D.8
8.evaluate 2 x 2 y when x = -3 and y = 5
A.-90
B.-30
C.30
D.90
9. find the value of 4 (m - n) if m = 5 and n = -1
A. 36
B. 24
C. 12
D.-12
10. what will be the value of
x2 + y2
if x = 4 and y = 2
x-y
A. 1
B.4
C.8
D.10

Answers: 2

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1. Which of the following is NOT an algebraic expression? A. 7x + y
B. 3(m-n) C. X + 3 = 1