Evaluate the expression without using a calculator, or state that the value does not exist. Simplify the answer to the extent possible.sech 0
A. 0
B. 1
C. 
D. 2
Answer: B
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Find Dxy.y = -sinh-1 (3x2 + 4)
A. 
B. 
C. 
D. 
Solve the problem.Assume that the half-life of Carbon-14 is 5700 years. Find the age (to the nearest year) of a wooden axe in which the amount of Carbon-14 is 30% of what it originally had.
Fill in the blank(s) with the appropriate word(s).
Describe the transformations and give the equation for the graph.
A. It is the graph of f(x) = 
translated 6 units to the left, stretched vertically by a factor of 2 and translated 4 units down. The equation is y = 2
+ 4
B. It is the graph of f(x) = 
translated 6 units to the left, shrunken vertically by a factor of 
and translated 4 units down. The equation is y = 
- 4
C. It is the graph of f(x) = 
translated 6 units to the left, shrunken vertically by a factor of 
and translated 4 units down. The equation is y = 
- 4
D. It is the graph of f(x) = 
translated 6 units to the left, stretched vertically by a factor of 2 and translated 4 units down. The equation is y = 2
- 4
Use two equations in two variables to solve the following problem.A rancher raises five times as many cows as horses. If he has 204 animals (cows and horses only), how many cows does he have?
A. 170 cows B. 190 cows C. 210 cows D. 180 cows E. 140 cows