Solve for the unknown number.25 + x = 45
A. 20
B. 0
C. 1
D. 45
Answer: A
Mathematics
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Use the Pythagorean Theorem as described above to find the value of x in the figure.
A. -20 B. 20 C. 10 D. 5
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Find the magnitude or direction angle of the given vector as indicated.i + j; Find the direction angle ?.
A. 60° B. 45° C. 30° D. 135°
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Use periodic properties of the trigonometric functions to find the exact value of the expression.cos
A. -1 B. 0 C. undefined D. 1
Mathematics