Solve the exponential equation. Round to three decimal places when necessary.
= 3
A. -0.203
B. -0.693
C. 1.099
D. No solution
Answer: D
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Find the length and direction (when defined) of u × v.u = - i +
j + k, v = i + j + 2k
A. 2; -
i +
j -
k
B. 8; i -
j -
k
C. 2;
i +
j -
k
D. 8; i -
j +
k
Solve the problem. Round results to an appropriate number of significant digits.When sitting atop a tree and looking down at his pal Joey, the angle of depression of Mack's line of sight is If Joey is known to be standing 26 ft from the base of the tree, how tall is the tree?
A. 38 ft B. 40 ft C. 42 ft D. 36 ft
x3 + 2x + x2 + 2
A. (x2 + 1)(2x + 1) B. (2x + 1)(x + 1) C. (x2 + 1)(x + 2) D. (x2 + 2)(x + 1)
Solve the problem.Consider the following simplified digital photograph that has a grid with four gray levels numbered from
It shows a letter Y in dark gray on a white background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix A.
A.
B.
C.
D.