Solve the problem.The pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 254 vibrations per second and a wavelength of 19.2 ft. Find the wavelength of another tone that has a pitch of 358 vibrations per second. Round to the nearest tenth.
A. 0.1 ft
B. 0 ft
C. 13.6 ft
D. 4736 ft
Answer: C
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Solve the problem.A television manufacturing company has two factories-I and II-that manufacture color and monochrome TV sets. Each day, factory I produces 50 color and 20 monochrome TV sets at a cost of $3,000. Each day, factory II produces 30 color and 24 monochrome TV sets at a cost of $2,700. An order is received for 2700 color and 1800 monochrome TV sets.(a) Let x and y represent the number of days factory I and factory II must operate, respectively, to fill the order. Give all constraints on x and y in the form of linear inequalities.(b) Write the total daily operating cost as a function of x and y.(c) Graph the feasible set for this problem. 
What will be an ideal response?
Multiply.(3a - 8)2
A. 9a2 + 64 B. 9a2 - 48a + 64 C. 3a2 - 48a + 64 D. 3a2 + 64
Use both the addition and multiplication properties of inequality to solve the inequality. Graph the solution set on a number line.25n + 45 ? 5(4n + 18)
A. (9, ?)
B. [9, ?)
C. (-?, 9) 
D. (-?, 9] 
Use the relationship among the three angles of any triangle to solve the problem.A triangle has angles of (4x)°, (3x + 8)°, and (2x + 19)°. Find the measure of each angle.
A. 17°, 53°, 68° B. 53°, 59°, 68° C. 17°, 59°, 68° D. 53°, 51°, 68°