Write the percent problems as equations or proportions and solve. Round to the nearest tenth or tenth of percent. 70% of what number is 39?
A) 56.7
B) 54.7
C) 57.7
D) 55.7
E) 53.7
D) 55.7
Mathematics
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Write in decimal notation.Three hundred ninety one thousandths
A. 0.391 B. 300.91 C. 0.0391 D. 0.00391
Mathematics
Convert the rectangular equation to polar form.2x + 3y = 6
A. r(2 sin ? + 3 cos ?) = 6 B. 2 sin ? + 3 cos ? = 6r C. 2 cos ? + 3 sin ? = 6r D. r(2 cos ? + 3 sin ?) = 6
Mathematics
Solve the problem.Let D be the region bounded below by the cone 
and above by the sphere 
. Set up the triple integral in cylindrical coordinates that gives the volume of D using the order of integration 
.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
Mathematics
Solve the equation.
= y
A. {2} B. ? C. {5 D. {5, -3}
Mathematics