Determine whether or not the number is written in scientific notation.0.18 × 107
A. in scientific notation
B. not in scientific notation
Answer: B
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Solve the problem.Find a field G = P(x, y)i + Q(x, y)j in the xy-plane with the property that at any point (a, b) ? (0, 0), G is a unit vector pointing away from the origin.
A. -
B.
C. xi + yj
D.
Evaluate the expression for the given value or values.x - 2yz for x = 90, y = 3, z = 5
A. 420 B. 1320 C. 60 D. 80
Solve the problem.Among 170 households surveyed, 53 have a video camera, 52 have a snapshot camera, 30 have binoculars, 7 have a video camera and a snapshot camera, 8 have a snapshot camera and binoculars, and 6 have all three products. What is the probability that a household will have a snapshot camera or binoculars? Express the answer as a fraction.
A.
B.
C.
D.
Translate the sentence into an equation. Use x to represent the unknown number. 10 times a number, increased by 1, is the same as 12 times the number, decreased by 9.
A. 10(x + 1) = 12(x - 9) B. 10x + 9 = 12x - 1 C. 10x + 1 = 12x - 9 D. 10(x - 9) = 12(x + 1)