Solve the equation.  +    =  

A. {0, 5}
B. ?
C. {0}
D. {-5}


Answer: B

Mathematics

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Evaluate the improper integral.

A.
B.
C.
D.

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Estimate the value of the quantity.The velocity of a projectile fired straight into the air is given every half second. Use right endpoints to estimate the distance the projectile travelled in four seconds.

A. 815.6 m B. 854.8 m C. 407.8 m D. 427.4 m

Mathematics

Write the ratio in three different ways.the ratio of 0.2 to 50

A. 0.2 to 50, 0.2:50, 
B. 0.2 to 50, 0.2;50, 
C. 50 to 0.2, 50:0.2, 
D. 0.2 of 50, 0.2;50, 

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Find all cube roots of the complex number. Leave answers in trigonometric form.2 + 2i

A.  cis 20°,  cis 140°,  cis 260°
B.  cis 20°,  cis 140°,  cis 260°
C.  cis 30°,  cis 150°,  cis 270°
D.  cis 20°,  cis 140°,  cis 260°

Mathematics