Given matrices A = 
, B = 
, and C = 
, decide if the statement is true or false.ABC is a 2 × 4 matrix.
A. True
B. False
Answer: B
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Evaluate the function for the given values of a and b. Then use the intermediate value theorem to determine which of the statements below is true.a = 1 and b = 2f(x) = 8x3 - 9x - 3
A. f(1) and f(2) have opposite signs, therefore f does not have a real zero between 1 and 2. B. f(1) and f(2) have the same sign, therefore the intermediate value theorem cannot be used to determine whether f has a real zero between 1 and 2. C. f(1) and f(2) have the same sign, therefore f does not have a real zero between 1 and 2. D. f(1) and f(2) have opposite signs, therefore f has a real zero between 1 and 2.
Find the vertices and foci of the ellipse.169x2 + 49y2 = 8281
A. Vertices: (±13, 0); Foci: (±2
, 0)
B. Vertices: (±7, 0); Foci: (±2
, 0)
C. Vertices: (0, ±13); Foci: (0, ±2
)
D. Vertices: (0, ±7); Foci: (0, ±2
)
Translate the sentence into an equation using the variable x. Do not solve the equation. State what the variable represents.The total of her age and twice her age is 36.
A. x + 3x = 36, where x is her age B. x + 2 = 36, where x is her age C. x + 2x = 36, where x is her age D. x + 2(36) = 36, where x is her age
Simplify. Assume all variables and radicands represent nonnegative real numbers.5t
- 
A. 27
B. 13t
C. 13t2
D. -3t