Solve. x + y = 
4y + 4z = - 
5x + z = - 3
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.How many 5-letter passwords can be formed from the letters P, A, Y, M, E, N, T if no repetition of letters is allowed?
A. 42 B. 1260 C. 35 D. 2520
Mathematics
Determine ? in decimal degrees, 0° ? ? ? 90°. Round results to an appropriate number of significant digits.csc ? = 4.16
A. 13.9° B. 13.90° C. 13.30° D. 13.3°
Mathematics
Write the expression in the standard form a + bi.If z = 3 - 6i and w = 1 + 5i, evaluate 
.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use the discriminant to determine whether the quadratic equation has two unequal real solutions, a repeated real solution, or no real solution without solving the equation.x2 + 3x + 7 = 0
A. repeated real solution B. two unequal real solutions C. no real solution
Mathematics