Solve the problem.The perimeter of a rectangle is 28 cm. The length is 10 cm longer than the width. What are the length and width of the rectangle?
A. Length: 14 cm; width: 4 cm
B. Length: 19 cm; width: 9 cm
C. Length: 10 cm; width: 2 cm
D. Length: 12 cm; width: 2 cm
Answer: D
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Solve.In a large city, 0.609 of the budget went toward city workers' salaries. Write this decimal as a percent.
A. 60.9% B. 0.0609% C. 609% D. 0.609%
Find a formula for the nth term of the sequence.0, 2, 0, 2, 0 (alternating 0's and 2's)
A. an = 1 - (-1)n B. an = 1 + (-1)n+1 C. an = 1 + (-1)n D. an = 1 + (-1)n-1
Solve the problem.The table below summarizes the construction cost of a set of homes (excluding the lot cost) along with the square footage of the home's floor space. Find a linear equation that relates the construction cost in thousands of dollars to the floor space in hundreds of square feet by finding the least squares line for the data.
A. y = 8.13x - 12.79 B. y = 7.87x - 13.08 C. y = 8.13x D. y = 7.97x - 13.54
Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a degree.3 cos2 x + 2 cos x = 1
A. {51.8°, 128.2°} B. {49.8°, 130.2°, 229.8°, 310.2°} C. {70.5°, 180°, 289.5°} D. {103.2°, 145.2°, 283.2°, 325.2°}