Find the distance between the two vectors.u = (-5, 6, -5) , v = (-3, 4, 5)
A. 108
B. 6
C. 2
D. -10
Answer: B
Mathematics
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Write the linear system corresponding to the reduced augmented matrix.
A. x1 = -4, x2 = t + 6, x3 = t for any real number t B. No Solution C. x1 = 4, x2 = -t + 6, x3 = t for any real number t D. x1 = 4, x2 = t + 6, x3 = 0
Mathematics
Solve the problem.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Find the equation of the least-squares regression line that models the data.
A. y ? 33.7 - 2.14x B. y ? -67.3 + 1.07x C. y ? 67.3 + 1.07x D. y ? 33.7 +2.14x
Mathematics
Find both square roots for the number listed.484
A. 44, -44 B. 24, -24 C. 23, -23 D. 22, -22
Mathematics
Write the expression in the standard form a + bi.
A. 1 B. -i C. i D. -1
Mathematics