Use the fundamental identities and appropriate algebraic operations to simplify the expression.
+ tan x
A. 1
B. cos x + sin x
C. sin2 x
D. sec x
Answer: D
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Solve. Remember to insert units when writing your answer.In November, 9 tons 1,284 lb of coal were delivered to a steel mill. In December, 3 tons 1,779 lb were delivered. Find the total amount of coal delivered in these two months.
A. 6 tons 1,505 lb B. 13 tons 1,063 lb C. 12 tons 1,063 lb D. 5 tons 1,505 lb
Provide an appropriate response.It can be shown that the inequalities 1 - 
< 
< 1 hold for all values of x close to zero. What, if anything, does this tell you about 
Explain.
What will be an ideal response?
Solve the problem.A television offer advertised a set of knives for $15 down and $8 a month for 6 months. What is the total cost of the knives?
A. $63 B. $53 C. $73 D. $48
Factor.27x2 - 117x - 90
A. (3x + 2)(9x - 45) B. 9(3x + 2)(x - 5) C. (27x + 18)(x - 5) D. 9(3x - 2)(x + 5)