Solve the problem.How many 9-symbol codes can be formed using 3 different symbols? Repeated symbols are allowed.
A. 84
B. 19,683
C. 60,480
D. 504
Answer: B
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?What is not true about polyhedra and three-dimensional figures? ?
A. ?All polyhedra are three-dimensional figures. B. ?All three-dimensional figures are polyhedra. C. ?All rectangular prisms are polyhedra. D. ?A cone is a three-dimensional figure. E. ?A polyhedra has polygon faces.
Use the order of operations to evaluate each problem.5 ? 9 - 5
A. 40 B. 225 C. 20 D. 50
Find the equivalent value of two resistors which are connected in parallel whose values are 4 kohms and 6 kohms.
a. 10 kohms b. 2.4 kohms c. 24 kohms d. 42.7 kohms e. 1.0 kohms
Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red, and 1 blue marble. Find the probability.The first marble is blue and the second marble is red.
A. 
B. 
C. 
D. 