Solve the problem.Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x).
A.
B. 
C. 
D.
Answer: A
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Verify the identity.
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Write the standard form of the equation of the circle.The endpoints of a diameter are (3, 6) and (9, 6).
A. (x - 6)2 + (y - 6)2 = 3 B. (x + 6)2 + (y + 6)2 = 3 C. (x + 6)2 + (y + 6)2 = 9 D. (x - 6)2 + (y - 6)2 = 9
Mark as true any statement that is always true. Mark as false any statement that is never true or that is not necessarily true. Be able to justify your answers.
1. A sphere is a polyhedron. 2. The bases of a right regular prism may be congruent, parallel hexagons. 3. The lateral faces of a right square pyramid are isosceles triangles. 4. If there are 1.057 quarts in one liter and four quarts in one gallon, then there are 4.228 liters in one gallon.
Evaluate the sum.
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Please enter your answer as a fraction.
What will be an ideal response?