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The expression 4x 2 C 2x + 3 is equal to 3 when x = 0 and when x =
The expression 4x 2 C 2x + 3 is equal to 3 when x = 0 and when x =A . C1/2B . C1/4C . 1/8D . 1/4E . 1/2View AnswerAnswer: E Explanation: Set the expression 4x 2 C 2x + 3 equal to 3 and solve for x: 4x...
Which of the following expressions is undefined when x = C2?
Which of the following expressions is undefined when x = C2?A . B . C . D . E . View AnswerAnswer: E Explanation: An expression is undefined when a denominator of the expression is equal to zero. When x = C2, x 2 + 6 x + 8 =...
If the height of a cylinder is doubled and the radius of the cylinder is halved, the volume of the cylinder:
If the height of a cylinder is doubled and the radius of the cylinder is halved, the volume of the cylinder:A . remains the same.B . becomes twice as large.C . becomes half as large.D . becomes four times larger.E . becomes four times smaller.View AnswerAnswer: C Explanation: The volume...
If anda = 4 and b = 8, which of the following could be true?
If anda = 4 and b = 8, which of the following could be true?A . x < aB . x > bC . a < x < bD . 4 < x < 8E . None of the aboveView AnswerAnswer: A Explanation: If a = 4, x could be...
When x= C3, the expression C2x 2 + 3x C 7 =:
When x= C3, the expression C2x 2 + 3x C 7 =:A . C34B . C27C . C16D . C10E . 2View AnswerAnswer: A Explanation: Substitute C3 for x: C2 × (C3) 2 + 3 × (C3) C 7 = C 2 × 9 C 9 C 7 = C18...
How many values can be found for f(3)?
The graph of f(x) is shown above. How many values can be found for f(3)?A . 0B . 1C . 2D . 4E . Cannot be determined.View AnswerAnswer: B Explanation: Be careful C the question asks you for the number of values of f(3) not f(x) = 3. In other...
What is the next number in the series below?
What is the next number in the series below? 3 16 6 12 12 8A . 4B . 15C . 20D . 24E . 32View AnswerAnswer: D Explanation: This series actually has two alternating sets of numbers. The first number is doubled, giving the third number. The second number has...
If she runs a sixth dash, which of the following would change the mean and mode of her scores, but not the median?
Melissa runs the 50-yard dash five times, with times of 5.4 seconds, 5.6 seconds, 5.4 seconds, 6.3 seconds, and 5.3 seconds. If she runs a sixth dash, which of the following would change the mean and mode of her scores, but not the median?A . 5.3 secondsB . 5.4 secondsC...
What is the price of the coat now?
A store prices a coat at $85. During a sale, the coat is sold at 20% off. After the sale, the store raises the price of the coat 10% over its sale price. What is the price of the coat now?A . $18.70B . $61.20C . $68.00D . $74.80E ....
Stephanie buys almonds at the grocery store for $1.00 per pound. If she buys 4 pounds of almonds and pays a 5% tax on her purchase, what is Stephanie’s total bill?
FILL BLANK Stephanie buys almonds at the grocery store for $1.00 per pound. If she buys 4 pounds of almonds and pays a 5% tax on her purchase, what is Stephanie’s total bill?View AnswerAnswer: 4.20 Explanation: If one pound of almonds costs $1.00, then 4 pounds of almonds costs 4...
