Solve by using the quadratic formula.x2 + 12x + 13 = 0
A. -12 + 
B. 6 ± 
C. -6 ± 
D. 6 + 
Answer: C
Mathematics
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The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = (4t2 + 6)i + (3t3 - 3t)k
A. 0
B. ?
C. 
D. 
Mathematics
Add.2221 + 1432
A. 3346 B. 3644 C. 3554 D. 3653
Mathematics
Provide an appropriate response.
= 1
A. 1.73 B. 2 C. 1.5 D. 1
Mathematics
Find the probability. Round to the nearest ten-thousandth when necessary.What is the probability that 15 tosses of a fair coin will show 5 tails?
A. 0.1832 B. 0.0183 C. 0.0458 D. 0.0916
Mathematics