Classify the angle as acute, obtuse, straight, or right. For right and straight angles indicate the number of degrees in the angle.
A. Acute
B. Straight (180°)
C. Right (90°)
D. Obtuse
Answer: C
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Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = 1, y = 0; 
B. x = 2, y = - 1; 
C. x = 4, y = -2; 
D. inconsistent
Factor the polynomial completely.1000p3 - 1
A. (10p + 1)(100p2 - 10p + 1) B. (10p - 1)(100p2 + 1) C. (10p - 1)(100p2 + 10p + 1) D. (1000p - 1)(p2 + 10p + 1)
Solve.Anna spent 3.63 hours doing her math homework. Write this decimal in words.
A. three and sixty-three thousandths B. three and sixty-three millionths C. three and sixty-three hundredths D. three and sixty-three tenths
Solve the equation, finding all solutions in [0°, 360°). Round to the nearest hundredth when necessary.sec2x + 2tan x = 25
A. 75.96°, 255.96°, 99.46°, 279.46° B. 104.04°, 284.04°, 99.46°, 279.46° C. 104.04°, 284.04°, 80.54°, 260.54° D. 75.96°, 255.96°, 80.54°, 260.54°