Evaluate the determinant.
A. 21x2 - x4
B. 0
C. -21x2 - x4
D. 21x2 + x4
Answer: A
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Identify a, b, c, with a > 0, for the quadratic equation.4x2 = 10 - x
A. a = 4, b = -1, c = 10 B. a = 4, b = 1, c = -10 C. a = 4, b = 0, c = -10 D. Not quadratic
Solve the problem. Use 3.14 for ? and round to the nearest tenth.Pedro can't decide which size pizza to order. The 10-inch cheese and sausage pizza is $10.99, while the 12-inch deluxe is $11.99. The dimensions given are the diameters of the pizzas. If he gets the 10-inch pizza, the total price will be divided among 3 people. If he chooses the 12-inch pizza, then the total price will be divided among 4 people. Which is the better buy? How much will each person pay?
A. 10-inch pizza; $3.00 B. 12-inch pizza; $3.66 C. 12-inch pizza; $3.00 D. 10-inch pizza; $3.66
Find the area of the triangle. If necessary, round the answer to two decimal places.a = 4, b = 5, c = 7
A. 10.01 B. 16.01 C. 9.80 D. 3.46
Provide an appropriate response.Write an expression that represents the perimeter of the equilateral triangle (a triangle with three sides of equal length). Simplify the expression.
A. (9x + 3) in. B. (18x + 18) in. C. (18x + 6) in. D. (9x + 9) in.