Use a calculator to evaluate the expression. Round your answer to the nearest thousandth.
A. -0.148
B. -0.255
C. -0.136
D. -0.166
Answer: B
Mathematics
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Multiply.5y2(8y2 + 2y + 6)
A. 40y4 + 10y + 30 B. 13y4 + 7y + 11 C. 40y4 + 10y3 + 30y2 D. 40y4 + 10y2 + 30
Mathematics
Find z1z2. Write the answer in polar form with the argument between 0° and 360°.z1 = 6(cos 40° + i sin 40°), z2 = 4(cos 17° + i sin 17°)
A. 24(cos 23° + i sin 23°) B. 10(cos 320° + i sin 320°) C. 24(cos 57° + i sin 57°) D. 10(cos 57° + i sin 57°)
Mathematics
Solve the system of equations using substitution.
A. x = 
, y = 
; x = 1, y = 5
or 
, (1, 5)
B. x = 
, y = 6; x = - 
, y = 
or 
), 
C. x = - 
, y = 2; x = 1, y = 5
or 
, (1, 5)
D. x = 
, y = 
; x = - 
, y = 0
or 
, 
Mathematics
Insert < or > to make the statement true.-42 _____ -9
A. -42 < -9 B. -42 > -9
Mathematics