Solve.x2 + x + 3 = 0
A. -1 ± i
B. 
C. 1 ± i
D. 
Answer: B
Mathematics
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Determine by what factor the numbers differ. In other words, determine how many times larger the first number is than the second.1 billion, 1 thousand
A. 103 B. 1012 C. 109 - 103 D. 106
Mathematics
Find the exact value by using a half-angle identity.cos 75°
A. 
B. - 
C. - 
D. 
Mathematics
Represent the vector in the form v = ai + bj whose magnitude and direction angle are given.
= 8; ? = 0°
A. v = -8j B. v = 8i + 8j C. v = 8j D. v = 8i
Mathematics
Convert the measurement as indicated. Round to the nearest tenth, if necessary.407 mi to kilometers
A. 385.0 km B. 431.4 km C. 655.3 km D. 252.7 km
Mathematics