Solve the equation.10 -  = 5

A.
B. {-5, 5}
C.
D. no real solution


Answer: C

Mathematics

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Solve the equation.6r + 6 = 30

A. 18 B. 4 C. 22 D. 1

Mathematics

Write the conjugate  of the complex number z. Then find z.z = 8 + 3i

A.  = 8 - 3i, z = 64 - 9i2
B.  = 8 - 3i, z = 73
C.  = 8 - 3i, z = 55
D.  = 8 - 3i, z = 64 - 9i

Mathematics

Find a ? b.a = 5i + 4j,  b = -5i + 3j

A.
B. 37
C. -13
D.

Mathematics

Simplify the expression. -  ? 

A. -1 
B. - 
C. - 
D. - 

Mathematics