Evaluate the polynomial.x2yz + x + y for x = 1, y= -4, and z = 1

A. 7
B. -4
C. 4
D. -7

Answer: D

Mathematics

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Find the exact values for sin s, cos s, and tan s.s = - 

A. sin s = ; cos s = ; tan s = -1
B. sin s = - ; cos s = - ; tan s = 1
C. sin s = - ; cos s = - ; tan s = -1
D. sin s = ; cos s = ; tan s = 1

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Mathematics

Multiply and simplify.( + 2)( - 2)

A. x - 2
B. x - 4
C. x + 4 - 4
D. x2 - 4

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Mathematics

Solve the equation.3x = 27

A. 4 B. 3 C. -3 D. 2

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Mathematics

Complete the table for the radioactive isotope. Round your answer to two decimal places. Isotope Half-life(years) Initial Quantity Amount after 1000 years 24,100 ----

A. Amount after 1000 years: 
B. Amount after 1000 years: 
C. Amount after 1000 years: 
D. Amount after 1000 years: 
E. Amount after 1000 years: 

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Mathematics