Evaluate 5x - 3, when x=7
A. 20
B. 25
C. 32
D.35
2. Evaluate 2x2 - 1 when x= -5
A. 35
B. 49
C. 50
D. 55
3. Evaluate 16 - x2 when x=4
A. 0
B. 4
C. 10
D.16
4. Evaluate 2a + b - c when a=1, b=2, c=3
A. 0
B. 1
C. 4
D. 5
5. Evaluate 4x + 3y when x= -3, y = -2
A. -10
B. -18
C. -20
D. -25
6. Evaluate 5ab when a=1, b= 2
A. 2
B.5
C.10
D.15
7. Evaluate 7y + 2b when y= -2, b= 2
A.-10
B. 10
C. -15
D. 15
8. Evaluate xyz when x= -3, y= -2, z= -1
A. -2
B. -4
C. -6
D. -8
9. Evaluate 3c - 5z2 when c= 3, z= -1
A. 2
B. 4
C. -1
D. 1
10. Evaluate 8ab + 3bc -12 when a=1, b= -1, c = 2
A. -12
B. -20
C. -24
D. -26
11 - 15 Tell whether the following are polynomial or not 11. 6x4
A.polynomial
B.not
12. 4x2 - 5
polynomial
not
13. 3x + 2y
A. polynomial
B. not
14. x2 + 2/x - 6
A. polynomial
B. not
15. 4a
polynomia
not l
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Answer:
Evaluate 5x - 3, when x=7
A. 20
B. 25
C. 32
D.35
2. Evaluate 2x2 - 1 when x= -5
A. 35
B. 49
C. 50
D. 55
3. Evaluate 16 - x2 when x=4
A. 0
B. 4
C. 10
D.16
(16-x2 is 8. 16-x² is 0)
4. Evaluate 2a + b - c when a=1, b=2, c=3
A. 0
B. 1
C. 4
D. 5
5. Evaluate 4x + 3y when x= -3, y = -2
A. -10
B. -18
C. -20
D. -25
6. Evaluate 5ab when a=1, b= 2
A. 2
B.5
C.10
D.15
7. Evaluate 7y + 2b when y= -2, b= 2
A.-10
B. 10
C. -15
D. 15
8. Evaluate xyz when x= -3, y= -2, z= -1
A. -2
B. -4
C. -6
D. -8
9. Evaluate 3c - 5z² when c= 3, z= -1
A. 2
B. 4
C. -1
D. 1
10. Evaluate 8ab + 3bc -12 when a=1, b= -1, c = 2
A. -12
B. -20
C. -24
D. -26
IN NUMBER 11-15 YOU HAVE TO
ANSWER IT YOURSELF, SO U COULD LEARN. I'LL GIVE YOU AN EXAMPLE, IT'S A GUIDE. IT'S IN THE PICTURE ABOVE. U NEED TO DO IT YOURSELF, SO YOU WOULD LEARN SOMETHING. ITS EASY NAMAN, JUST UNDERSTAND THE
GIVEN.
Answer:
1. C
2. B
3. A
4. B
5. B
6. C
7. A
8. C
9. B
10. D
11. A
12. A
13. A
14. A
15. A
Step-by-step explanation: