Use a proportion to solve the problem.On a map, the length of a nature-center trail is 9.2 centimeters. If the scale is 2 centimeters to 21 kilometers, what is the actual length of the trail?
A. 96.6 km
B. 100.6 km
C. 193.2 km
D. 97.6 km
Answer: A
Mathematics
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
A. x + 4 B. x - 4 C. x - 2 D. x + 2
Mathematics
Solve the inequality algebraically. Write the solution in interval notation.?6x + 1? < 18
A. (-?, - 
)
B. (-?, 6)
C. (-?, - 
) ? (
, ?)
D. (- 
, 
)
Mathematics
Evaluate the expression without a calculator.log2 
A. 12 B. -6 C. 2 D. 1/6
Mathematics
Solve for the requested variable.Your company uses the quadratic model y = -11x2 + 350x to represent how many units (y) of a new product will be sold (x) weeks after its release. How many units can you expect to sell in week 15?
A. 5085 units B. 7725 units C. 5415 units D. 2775 units
Mathematics