Question 28
Algebraic ExpressionsGiven that x = 1/2 and y = 4, evaluate 3x2y + xy2.
- A.−5
- B.−1
- C.4
- D.11.
Show the answer and explanation
Answer: D (11.)
Explanation
3x2y = 3 × 1/4 × 4 = 3 and xy2 = 1/2 × 16 = 8, so the total is 11.
Given that x = 1/2 and y = 4, evaluate 3x2y + xy2.
Answer: D (11.)
3x2y = 3 × 1/4 × 4 = 3 and xy2 = 1/2 × 16 = 8, so the total is 11.