Replace the ? with the correct symbol >, <, =.-|-20| ? -19
A. <
B. =
C. >
Answer: A
Mathematics
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Multiply.(8 + 4x)(-3 + 4x)
A. 4x2 + 20x + 20 B. 16x2 + 20x - 24 C. 16x2 - 24x + 20 D. 16x2 + 19x - 24
Mathematics
Solve the problem.A searchlight is shaped like a paraboloid of revolution. If the light source is located 2 feet from the base along the axis of symmetry and the opening is 12 feet across, how deep should the searchlight be?
A. 18 ft B. 9 ft C. 0.2 ft D. 4.5 ft
Mathematics
Write the standard form of the equation of the circle whose radius is r and whose center is (h, k).r = 14; (h, k) = (0, 0)
A. x2 + y2 = 14 B. x2 + y2 = 28 C. x2 + y2 = 196 D. x2 - y2 = 14
Mathematics
Find the length s. Round the answer to three decimal places.
A. 4.084 cm B. 4.538 cm C. 4.992 cm D. 3.63 cm
Mathematics