Solve the equation using the quadratic formula.x2 + 7x - 44 = 0
A. {-11, 1}
B. {-11, 4}
C. {11, 4}
D. {-4, 11}
Answer: B
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Add.(2r2s2 + 3r2s - 7rs) + (7r2s2 - 2r2s + 7rs - 4)
A. 9r2s2 + r2s - 4 B. 9r2s2 + 5r2s - 14rs - 4 C. 9r2s2 + 5r2s + 14rs + 4 D. 9r2s2 + r2s - 14rs - 4
Verify the identity.tan ?(csc ? - sin ?) = cos ?
What will be an ideal response?
The total worldwide box-office receipts for a long-running blockbuster movie are approximated by the function
?
where 
is measured in millions of dollars and 
is the number of months since the movie's release. What are the total box-office receipts after the first month? The second month? The third month? What will the movie gross in the long run (when 
is very large)?
?
A. After the 1st month: $40 million; after the 2nd month: $100 million; after the 3rd month: $138.5 million; in the long run: $200 million.
B. After the 1st month: $200 million; after the 2nd month: $138.5 million; after the 3rd month: $100 million; in the long run: $40 million.
C. After the 1st month: $40 million; after the 2nd month: $100 million; after the 3rd month: $138.6 million; in the long run: $200 million.
D. After the 1st month: $40 million; after the 2nd month: $100 million; after the 3rd month: $138.5 million; in the long run: $50 million.
E. After the 1st month: $50 million; after the 2nd month: $138.5 million; after the 3rd month: $100 million; in the long run: $40 million.
An equation that defines y as a function of x is given. Solve for y in terms of x, and replace y with the function notation f(x).9x2 + 7y = 6
A. f(x) = -9x2 + 
B. f(x) = 6 - 9x2
C. f(x) = 
D. f(x) = 