Solve.x4 + 25 = 26x2
A. -1, 1, -5i, 5i
B. -1, 1, -5, 5
C. 1, 25
D. -i, i, -5i, 5i
Answer: B
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Solve the problem.The current in a simple electrical circuit is given by I = V/R, where I is the current in amperes, V is the voltage in volts, and R is the resistance in ohms. When V = 12 volts, what is a 12? resistor's tolerance for the current to be within 1 ± 0.01 amp?
A. 0.1% B. 1% C. 0.01% D. 10%
Solve the problem. Round amounts of money to the nearest cent.To raise money, the Boy Scouts bought 90 kg of caramels for $295.20. They sold the caramels in 100 g bags for $0.76 each. How much profit did they make?
A. $388.80 B. $194.40 C. $432.00 D. $68.40
Divide.
A. 1364 R6 B. 1369 C. 1364 D. 1364 R5
Use ZERO (or ROOT) to approximate the positive x-intercepts of the equation. Round to two decimal places.y = x3 + 3.3x2 - 5.2x - 6.3
A. 1.57 B. 4.18 C. 0.86 D. 1.75