Solve the problem.The radius r of a circle of known area A is given by r = , where  Find the radius and circumference of a circle with an area of 6.33 sq ft. (Round results to two decimal places.)

A. r = 2.02 ft, C = 12.69 ft
B. r = 1.42 ft, C = 8.86 ft
C. r = 1.42 ft, C = 8.92 ft
D. r = 1.42 ft, C = 8.92 sq ft


Answer: C

Mathematics

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Solve the problem. Assume all numbers are approximate unless otherwise stated or the number has been determined by a definition or counting process.An electronics manufacturer lists the frequency of one of its crystals as 5.95 MHz. What are the lowest and highest possible frequencies at which the crystal may oscillate?

A. 5.945 MHz and 5.954 MHz B. Only at 5.95 MHz C. 5.9 MHz and 6 MHz D. 5.94 MHz and 5.96 MHz

Mathematics

Write a logistic equation with the given parameter values. Then solve the initial value problem and graph the solution. Let r be the natural growth rate, K the carrying capacity, and P0 the initial population.r = 0.9, K = 7700, P0 = 550

A. P' = 0.9P; P = 

B. P' = 0.9P; P = - 

C. P' = 0.9P; P = 

D. P' = -0.9P; P = 

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Use set notation to identify the shaded region.

A. A ? B ? 
B. (A ? B) ? 
C. (A ? B) ? 
D.

Mathematics

Use the shape of the graph to name the function.

A. Square root function B. Absolute value function C. Identity function D. Constant function

Mathematics