Find R1 if RT = 27 Kê and R2 = 5.1 Kê.
a. 21.9 Kê
b. 32.1 Kê
c. 78 Kê
d. 116 Kê
e. 121.9 Kê
a. 21.9 Kê
Mathematics
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A computer password consists of any five capital letters from the ordinary English alphabet (A through Z).How many different passwords start with the letter Z?
A. 264 B. 265 - 1 C. 254 D. 26 × 25 E. none of these
Mathematics
Simplify.
A. 
B. 
C. 
D. -y
Mathematics
Solve the problem.A cup of coffee with temperature 103°F is placed in a freezer with temperature 0°F. After 7 minutes, the temperature of the coffee is 57.2°F. What will its temperature be 16 minutes after it is placed in the freezer? Round your answer to the nearest degree.
A. 25°F B. 27°F C. 21°F D. 23°F
Mathematics
Factor.21 - 29x - 10x2
A. (2x - 7)(5x - 3) B. (2x - 3)(5x + 7) C. (2x - 7)(5x + 3) D. (2x + 7)(5x - 3)
Mathematics