Find each product.(n - 13)(n + 13)
A. n2 - 26n - 169
B. n2 - 26n + 169
C. n2 - 26
D. n2 - 169
Answer: D
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Solve the problem.The current in the circuit is 6.50 mA. Determine the phase angle for the combination of the capacitor and the resistor. XC = 1550 ? R = 2900 ? XL = 2100 ? 
?? I
A. ? = -28.12° B. ? = -61.88° C. ? = -30.62° D. ? = -0.49°
Provide an appropriate response. Identify the equation y = -3x2 + 1 as linear, quadratic, or other.
A. other B. quadratic C. linear
Solve the problem.A projectile is fired from a height of 7.7 feet with an initial velocity of 153 ft/sec at an angle of 55° with the horizontal. The parametric equations for the path of the projectile are x = (153 cos 55°)t, and y = 7.7 + (153 sin 55°)t - 16t2,where x and y are in feet and t is in seconds. How long does it take the projectile to hit the ground? Round your answer to the nearest tenth of a second.
A. 7.8 seconds B. 7.9 seconds C. 10.1 seconds D. 15.8 seconds
Write as a percent.0.742
A. 742% B. 0.0742% C. 0.742% D. 74.2%