Evaluate the algebraic expression for the given values of the variables.
for x = 6, y = 7, and z = 4
A. 210
B. 840
C. 836
D. 30
Answer: A
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Solve the problem.In the formula N = Iekt, N is the number of items in terms of an initial population I at a given time t and k is a growth constant equal to the percent of growth per unit time. There are currently 72 million cars in a certain country, decreasing by 3.4% annually. How many years will it take for this country to have 47 million cars? Round to the nearest year.
A. 3 yr B. 95 yr C. 7 yr D. 13 yr
Answer the question.True or False? The ordered pair (0, 0) determines a point in quadrant I with 
0 and 
0.
A. False B. True
Add or subtract as indicated.
+ 
- 
A. 
B. 
C. 
D. 
Provide an appropriate response.Derive the identity sec-1 (-x) = ? - sec-1 x by combining the following two equations:cos-1(-x) = ? - cos-1 xsec-1 x = cos-1(1/x)
What will be an ideal response?