Find the exact value of the given expression.
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Solve the problem.Find a curve through the point (-8, 1) whose length integral, 1 ? y ? 2, is L = 
A. x = 
B. x = -8y5/2
C. x = -8
D. x = 
Solve the problem.A center-pivot irrigation system waters a sector-shaped field. Find the area of the field if the central angle, ? = 44° and the radius, 
Round to the nearest whole number.
A. 16,821 m2 B. 8411 m2 C. 57 m2 D. 114 m2
Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. 
B. 
C. no solution; ?
D. infinitely many solutions; {
y = 4x + 4} or {
y = 9x + 5}
Which of the following are true?
(a) All squares are rhombi. (b) All rectangles are parallelograms. (c) All parallelograms with congruent diagonals are rectangles. (d) All rhombi with congruent diagonals are squares. (e) Both (a) and (b) are correct. (f) Answers (a)–(d) are all correct.