Use a formula for perimeter or area to solve the problem. 
Find the perimeter of the figure.
A. 12 in
B. 20 in
C. 10 in
D. 8 in
Answer: B
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Rotate the coordinate axes to change the given equation into an equation which has no cross product (xy) term. Identify the graph of the equation as a hyperbola, ellipse, parabola, a straight line, or parallel lines.3x2 + 2
xy + y2 - 9
x + 5y - 18 = 0
A. 4u2 - 
v2 - 11u + 7
v - 18 = 0; Hyperbola
B. 4u2 - 11u - 18 = 0; Parallel lines
C. 4u2 - 11u + 7
v - 18 = 0; Parabola
D. 4u2 + 
v2 - 11u + 7
v - 18 = 0; Ellipse
Solve the initial value problem and leave the solution in implicit form.u'(x) = sec u sin 
, u(8?) = ?
A. sin u = 4 - 4 cos 
B. sin u = 
- 4 cos 
C. sin u = 
- 
cos 
D. sin u = 4 + 4? cos 
Solve by the method of your choice.x2 - 4x - 2 = 0
A. {
± 2}
B. {8}
C. {-2 ± 
}
D. {2 ± 
}
Solve the problem.The following list of digits was taken from a table of random numbers. We will let each set of 5 represent a family of five children. If a digit is 0 - 4 it will be a girl and the digit 5 - 9 will be a boy. Use this simulation to estimate the probability that a family of five children will have less than 2 boys.1872894741320630496354859155927135728152117321717389555755200888295295728953889458070773711019494917643369510390740035776259952052240040384511507452332751033761865636172939087480615941279969113392706727324727232240686253264092997095877709759912916866
A. 
B. None of these
C. 
D. 