Solve the problem.At step 1 in the construction of the Sierpinski gasket, there is 1 hole. At step 2 in the construction, there are 4 holes. How many holes are there at step 4 of the construction?
A. 121.
B. 13.
C. 10.
D. 40.
E. none of these
Answer: D
Mathematics
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Perform the division. Write the answer with positive exponents.
A. -3x3 - 2x2 + 6 - 
B. 3x3 + 4x2 - 6
C. 3x3 + 2x2 - 6 + 
D. 3x3 + 2x2 - 6
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Calculate.18 + 52 × 29 + 24
A. 643 B. 76 C. 767 D. 1271
Mathematics
Find a rational zero of the polynomial function and use it to find all the zeros of the function.f(x) = x3 + 4x2 - x - 4
A. {1, 1, -4} B. {1, -1, 4} C. {1, -1, -4} D. {-1, 1, 4}
Mathematics
Find the median of the data set.2.7, 3.7, 7.3, 4.3
A. 4.3 B. 4 C. 3.7 D. 7.3
Mathematics