Write the complex number in rectangular form.0.9(cos 300° + i sin 300°)
A. 0.779 + 0.450i
B. 1.400 + 0.034i
C. 1.766 + 1.400i
D. 0.450 - 0.779i
Answer: D
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An undercover police officer is assigned the job of once a night walking each of the 48 blocks of a certain section of town described by the street grid shown below. The walk starts and ends at A. The officer wants to minimize the total number of blocks he has to walk each night.
How many vertices of odd degree are there in the graph representing this problem?
A. 24 B. 20 C. 22 D. 18 E. none of these
Solve the problem.A lot is in the shape of a right triangle. The shorter leg measures 120 meters. The hypotenuse is 40 meters longer than the length of the longer leg. How long is the longer leg?
A. 120 m B. 240 m C. 200 m D. 160 m
Solve the problem.Maggie bought 17 packages of paper plates for a party of 95 people. Each person used one plate, and 9 plates were used for serving. At the end of the party she was left with 100 plates. How many plates were there in each package?
A. 18 plates B. 15 plates C. 12 plates D. 24 plates
The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r sin ? = 10
A. y = 10x B. x = 10y C. y = 10 D. x = 10