Find the volume of the indicated region.The tetrahedron cut off from the first octant by the plane 
A. 28
B. 21
C. 42
D. 14
Answer: D
Mathematics
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Write a formula for the nth term of the arithmetic sequence. Use the formula to find the 20th term of the sequence.24, 20 , 16, 12, . . .
A. an = 4n - 24; a20 = 56 B. an = 28 - 4n; a20 = -52 C. an = 24 - 4n; a20 = -56 D. an = 4n - 28; a20 = 52
Mathematics
Use a calculator to evaluate the given trigonometric function. Round the answer to three decimal places as needed.
A) 1.732 B) 3.732 C) Infinity D) 0.577 E) 1.000
Mathematics
Find the square root.
A. 19 B. 18 C. 20 D. 17
Mathematics
Use Pascal's triangle to expand the binomial.(m - n)5
A. m5 - 6m4n + 15m3n2 - 20m3n3 + 15m2n3 - 6mn4 + n5 B. m5 - 5m4n + 10m3n2 - 10m2n3 + 5mn4 - n5 C. m5 - n5 D. m5 - 5m4n - 10m3n2 - 10m2n3 - 5mn4 - n5
Mathematics