Write the number in expanded form.2751
A. 2000 + 700 + 50 + 1
B. 200 + 50 + 7
C. 2,751,000
D. 1000 + 500 + 70 + 2
Answer: A
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Subtract.-
- 
A. - 9
B. - 11
C. - 12
D. 12
As part of a statistics project, a 6th grade teacher brings to class a container with 300 red marbles and 500 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 40 marbles from the container. Of the 40 marbles drawn, 16 are red.The sampling method used in this example is called
A. quota sampling. B. simple random sampling. C. random sampling, but not simple random sampling. D. stratified sampling. E. none of these
Write the quadratic function in the form y = a(x - h)2 + k.f(x) = x2 + 3x + 1
A. f(x) = (x - 3)3 - 9
B. f(x) = 
2 - 
C. f(x) = 
2 + 
D. f(x) = (x + 3)3 - 9
Write each whole number in expanded form.714
A. 7000 + 100 + 40 B. 71,400 C. 400 + 10 + 7 D. 700 + 10 + 4