Solve the equation.log (5x) = log 4 + log (x + 1)
A. 
B. {- 4}
C. {4}
D. 
Answer: C
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = 
10
A. y = u10; u = 6x2 - 
- x; 
= 10
9
B. y = u10; u = 6x2 - 
- x; 
= 10
9
C. y = u10; u = 6x2 - 
- x; 
= 10
9
D. y = 6u2 - 
- u; u = x10; 
= 12x20 - 
- x10
Solve the problem.The strength S of a rectangular wooden beam is proportional to its width times the square of its depth. Find the dimensions of the strongest beam that can be cut from a 
cylindrical log. (Round answers to the nearest tenth.)
A. w = 7.5; d = 10.6 B. w = 8.5; d = 9.6 C. w = 8.5; d = 11.6 D. w = 6.5; d = 11.6
The measure of ?X is 12 more than three times ?Y . If ?X and ?Y are supplementary; find the measure of ?X and classify it as acute, right, obtuse or straight.
What will be an ideal response?
Write as a decimal.388%
A. 38.8 B. 3.88 C. 3.89 D. 0.388