Find the sum.
?

?

A.
B.
C.
D.
E.


Answer: C

Mathematics

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Express the vector in the form v = v1i + v2j + v3k. if A is the point (-5, -3, -6) and B is the point (0, -10, -3)

A. v = 5i - 7j + 3k B. v = 5i - 7j - 3k C. v = 5i + 7j - 3k D. v = 5i + 7j + 3k

Mathematics

Solve.A projectile is thrown upward so that its distance, in feet, above the ground after t seconds is  (i) Graph this equation.(ii) What is the maximum height that the projectile reaches?

What will be an ideal response?

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Write an equivalent expression by factoring out the greatest common factor.3x3 + 12x

A. 3x(x2 + 9x) B. 3x2(x + 4) C. 3x(x2 + 4) D. 3x(x2 + 4x)

Mathematics

Solve the problem.The table lists the average annual cost (in dollars) of tuition and fees at a certain 2-year college for selected years, where year 1 represents 1992, year 3 represents 1994, and so on. The equation  can be used to approximate the data. Predict the average annual cost in 2007 to the nearest dollar. 

A. $1473 B. $1554 C. $1500 D. $1527

Mathematics