Add or subtract by first simplifying each radical and then combining any like radical terms. Assume that all variables represent positive real numbers.6
- 2
- x
A. 18x2
- x
B. 18x
C. 3x
D. 17x
Answer: D
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Provide an appropriate response.The given table represents a function. Identify the independent and dependent variables, and describe the domain and range.
A. The variables are (time, temperature) or (date, temperature). The domain is all days over the course of a year. The range is temperatures between 45° and 
B. The variables are (temperature, time) or (temperature, date). The domain is all temperatures between 45° and 41° and the range is all days over the course of a year.
C. The variables are (temperature, time) or (temperature, date). The domain is all temperatures between 38° and 89° and the range is all days over the course of a year.
D. The variables are (time, temperature) or (date, temperature). The domain is all days over the course of a year. The range is temperatures between 38° and 89°.
Express the statement as an algebraic expression.Twice the sum of a number and 48
A. 2(x + 48) B. 96 + x C. 2x + 48 D. 48(x + 2)
Use the given graph to find the x-intercepts and zeros of the function.
A. (-6, 0), (4, 0); -6, 4 B. (-4, 0), (6, 0); -4, 6 C. (-4, 0), (-6, 0); -4, -6 D. (4, 0), (6, 0); 4, 6
Find the mean for the group of values. 70 51 70 93 51
A. 66 B. 93 C. 67 D. 51