If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.r = 14 inches, ? = 4 radians, A = ?
A. 392 in2
B. 56 in2
C. 28 in2
D. 784 in2
Answer: A
Mathematics
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In a series parallel circuit,
a. the current is not the same in all resistors. b. the current is always the same in all resistors. c. the voltage is always the same across all resistors. d. the voltage across each resistor is equal to the supply voltage. e. the currents and voltages are independent of the resistor values.
Mathematics
Solve the equation by completing the square.z2 + 12z + 25 = 0
A. {-12 + 
}
B. {6 ± 
}
C. {6 + 
}
D. {-6 ± 
}
Mathematics
Translate to a proportion and solve. Round to the nearest hundredth, if necessary.20% of what number is 64?
A. 12.8 B. 320 C. 32 D. 3200
Mathematics
Find the difference.7.34 minus 4.40
A. 2.94 B. 4 C. 2.84 D. 3.94
Mathematics