Identify whether the average described is a mean, median, or mode.The average European speaks more than one language.
A. Median
B. Mean
C. Mode
Answer: C
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Solve for the specified variable.I(R + r) = E, for r
A. r = 
- IR
B. 
C. r = 
D. r = 
Solve the problem.Use the formula R = log
, where the magnitude of an earthquake on the Richter scale is based on I, the measurement of a seismic wave, and I0, the measurement of a seismic wave of a level zero earthquake with the same epicenter. If an earthquake measured 5.3 on the Richter scale, what was the intensity of the earthquake? (Round to whole number.)
A. 19,953 B. 158,489 C. 199,526 D. 200
Solve the problem.A $166,000 trust is to be invested in bonds paying 7%, CDs paying 5%, and mortgages paying 9%. The bond and CD investment must equal the mortgage investment. To earn an $12,480 annual income from the investments, how much should the bank invest in bonds?
A. $43,000 B. $40,000 C. $41,000 D. $83,000
Perform row operations on the augmented matrix as far as necessary to determine whether the system is independent, dependent, or inconsistent. x + y + z = -4 x - y + 2z = -64x + 4y + 4z = -13
A. Independent B. Dependent C. Inconsistent