Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the exact value using a double-angle identity.sin(480°)
A. - 
B. 
C. -1
D. 
Mathematics
Find one value of ? that is a solution to the given equation.sin(? + 26°) = cos(? + 4°)
A. ? = 60° B. ? = 120° C. ? = 40° D. ? = 30°
Mathematics
Identify the degree of the polynomial; then indicate whether the polynomial is a monomial, binomial, or trinomial or has no special polynomial name.5r2 + 5r - 7r5
A. degree = 6; binomial B. degree = 2; trinomial C. degree = 5; binomial D. degree = 5; trinomial
Mathematics
How many pages are necessary to make 1,650 copies of a manuscript that is 487 pages long? (Print on one side only.) ? __________ pages
Fill in the blank(s) with the appropriate word(s).
Mathematics