Evaluate the logarithm using the change-of-base formula. Round your result to three decimal
places.
?
log2 7
?
A. 2.807
B. 6.807
C. 4.807
D. 5.807
E. 3.807
Answer: A
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Express the vector as a product of its length and direction.2j + 
k
A. 
B. 
C. 
D. 
(j + k)
The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.[4, 3] 
A. decreasing B. increasing C. constant
Solve.Nurses use a formula known as Young's rule to determine the amount of medicine to give a child under 12 years of age when the adult dosage is known: 
where C is the child's dose, A is the age of the child in years, and D is the adult dose. (a) Work backward and find the adult dose in terms of the child's dose. Solve for D. (b) Find D if C = 0.12 gram and A = 4.
A. (a) D = 
,
(b) 0.48 gram
B. (a) D = 
,
(b) 0.52 gram
C. (a) D = 
,
(b) 0.52 gram
D. (a) D = 
,
(b) 0.48 gram
Solve the inequality.2x - 3y ? 6 
A. 
B. 
C. 
D. 