Factor completely. State that the polynomial is prime if it cannot be factored.x2 + 9x + 20
A. (x + 20)(x + 9)
B. (x + 20)(x - 1)
C. (x - 5)(x - 4)
D. (x + 5)(x + 4)
Answer: D
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Write one or more inequalities that describe the set of points.The interior of the sphere x2 + y2 + x2 = 36
A. x2 + y2 + x2 < 6 B. x2 + y2 + x2 ? 6 C. x2 + y2 + x2 ? 36 D. x2 + y2 + x2 < 36
Translate the argument into symbolic form. Then use a truth table to determine whether the argument is valid or invalid. (Ignore differences in past, present, and future tense.)If this is Germany or Austria, then the signs are in German.
? This is Germany or Austria.
What will be an ideal response?
Add or subtract as indicated.-55 + (-18)
A. -37 B. 37 C. 73 D. -73
Find the magnitude and direction angle (to the nearest tenth) for the given vector. Give the measure of the direction angle as an angle in [0, 360°).
A. 36; 150° B. 36; 30° C. 18; 150° D. 18; 330°