Solve the problem.A rectangular board is 4 by 5 units. The foci of an ellipse are located to produce the largest area. A string is connected to the foci and pulled taut by a pencil in order to draw the ellipse. Find the length of the string.
A. 10
B. 5
C. 4
D. 8
Answer: B
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Draw a Venn diagram to represent the given information.In a survey of 80 pet owners, 50 had a dog, 33 had a cat, and 12 had both a cat and a dog.
What will be an ideal response?
Rewrite the complex number in standard polar form, plot the number in the complex plane, and determine the quadrant in which the point lies or the axis on which the point lies.z = 2(cos 150° + i sin 150°)
A. z = 2(cos 210° + i sin 210°); Quadrant III
B. z = (cos 150° + i sin 150°); Quadrant I
C. z = 2(cos 60° + i sin 60°); Quadrant I
D. z = 2(cos 150° + i sin 150°); Quadrant II
Multiply.(1 + m)(1 - m)
A. 1 - 2m - m2 B. 1 - m2 C. 1 + 2m - m2 D. 2 - m2
Solve.If the voltage, V, in an electric circuit is held constant, the current, I, is inversely proportional to the resistance, R. If the current is 300 milliamperes when the resistance is 4 ohms, find the current when the resistance is 24 ohms.
A. 1794 milliamperes B. 200 milliamperes C. 1800 milliamperes D. 50 milliamperes