Write the number as a decimal.There are 2.711 × 102 miles of highways, roads, and streets in a certain city.
A. 27,110
B. 2711
C. 27.11
D. 271.1
Answer: D
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The circulation M, in thousands, of a magazine depends on the time t, in years, since initial publication. The following relationship is valid over the first 7.00 years:
.
When did magazine circulation reach a maximum, and what was the maximum circulation? Round your answers to two decimal places.
?
A. The maximum circulation of 4.67 thousand occurred 54.81 years after initial publication. B. The maximum circulation of 54.81 thousand occurred 4.67 years after initial publication. C. The maximum circulation of 2.89 thousand occurred 57.70 years after initial publication. D. The maximum circulation of 57.70 thousand occurred 2.89 years after initial publication.
The argument has a true conclusion. Identify the argument as valid or invalid.Rational numbers are real numbers.Integers are rational numbers. Integers are real numbers.
A. Valid B. Invalid
Find the intercepts, and then graph the line.2x - y = 4
A. (0, -4), (-2, 0)
B. (0, -4), (-4, 0)
C. (0, -4), (2, 0)
D. (0, -2), (4, 0)
Solve.The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 7 amperes when the resistance is 510 ohms. What is the current when the resistance is 748 ohms?
A. 4.8 amperes B. 0.1 amperes C. 0.21 amperes D. 10.3 amperes