Find the magnitude of the vector.
?
?
A. ?
B. ?
C. ?
D. ?
E. 
Answer: E
Mathematics
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Determine the number of triangles with the given parts.a = 24, b = 20, ? = 46°
A. 0 B. 3 C. 2 D. 1
Mathematics
Solve.What percent of 70 items is 63?
A. 15% B. 87% C. 10% D. 90%
Mathematics
A computer password is made up of four characters. Each character can be a capital letter (A through Z), a lowercase letter (a through z) or a digit (0 through 9).How many passwords have 3 letters (uppercase or lowercase) and only one digit?
A. 523 × 10 B. 4 × 52× 10 C. 4 × 523 × 10 D. 52 × 51 × 50 × 10 E. none of these
Mathematics
Multiply.(9)(-5)(-5)
A. -225 B. 235 C. -90 D. 225
Mathematics