Solve.The formula for converting from Celsius temperature to Fahrenheit temperature is TF =
TC + 32, where TC is the temperature in degrees Celsius. (i) Solve the formula for TC. (ii) Find the corresponding Celsius temperature for a temperature of 161°F. Round to the nearest tenth, if necessary.
A. (i) TC = (TF - 32)
(ii) 232.2°C
B. (i) TC = TF - 32
(ii) 321.8°C
C. (i) TC = TF - 32
(ii) 85.9°C
D. (i) TC = (TF - 32)
(ii) 71.7°C
Answer: D
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Fill in the blank(s) with the appropriate word(s).
Without graphing, describe the shape of the graph of the function and complete the ordered pairs and
f(x) = 62x
A. The graph lies above the x-axis, rises from right to left, with the negative as a horizontal asymptote;
B. The graph lies below the x-axis, falls from right to left, with the positive as a horizontal asymptote;
C. The graph lies below the x-axis, falls from left to right, with the positive as a horizontal asymptote;
D. The graph lies above the x-axis, rises from left to right, with the negative as a horizontal asymptote;
Solve the system by substitution. -4x + 8y = 56 x + 7y = 49
A. No solution B. (0, 7) C. (1, 6) D. (-7, 0)
Perform the indicated operation and simplify. +
A.
B.
C.
D.