9514 1404 393
Answer:
- c
- a
- b
- d
Explanation:
1. √2 ≈ 1.414, √3 ≈ 1.732. The only rational numbers listed are 1.5 and 1.8. Of those, only 1.5 falls in the required range.
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2. The remainder theorem tells you the remainder from the division will be the value of the dividend when x is -1/2. (x = -1/2 makes the divisor zero.) That value is ...
8x²(x² -1) +7 = 8(1/4)(1/4 -1) +7 = 2(-3/4) +7 = 14/2 -3/2 = 11/2
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3. The x-coordinate of 0 means the point lies on the y-axis.
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4. Filling in the values of x and y, you find k to be ...
2(2) +3(-1) = k = 1