The abacus in the figure has "five" playing the role of "ten." (a) What number is represented on this five-bead abacus? (b) How would this number naturally be recorded?
A. (a) 10, (b) 20
B. (a) 15, (b) 30
C. (a) 6, (b) 11
D. (a) 30, (b) 110
Answer: C
Mathematics
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In a certain city there is a river running through the middle of the city. There are three islands and nine bridges as shown in the figure below.
In the graph that models this situation, the degree of the vertex that represents island B is
A. 4. B. 3. C. 6. D. 5. E. none of these
Mathematics
Decide whether the equation is or is not an identity.sin (? + 2?) = sin ?
A. Identity B. Not an identity
Mathematics
Determine whether the variation between the indicated quantities is direct or inverse.The number of hours worked by an hourly worker and the amount of her paycheck
A. Inverse B. Direct
Mathematics
Determine the degree of the polynomial.8a6b - 6a5b5 + 8ab + 8
A. 10 B. 6 C. 8 D. 5
Mathematics