Find the exact length of the line segment shown int he figure. Approximate this length to two decimal places when appropriate.
A. 
? 8.60
B. 7
C. 8
D. 
? 8.19
Answer: A
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Solve the problem.Chris rode her bicycle 15
miles on Tuesday. On Thursday, she rode 
miles. What was her total biking distance for those two days?
A. 22
miles
B. 20
miles
C. 15
miles
D. 21
miles
Restate in a logically equivalent form.If a triangle is equilateral, then its sides are equal.
A. If the sides of a triangle are equal, then it is not equilateral. B. If a triangle is not equilateral, then its sides are equal. C. If the sides of a triangle are not equal, then it is not equilateral. D. If the sides of a triangle are not equal, then it is equilateral.
Find the perimeter of the figure.
A. 18x B. 81x C. 81x2 D. 36x
Solve the problem.The number of species in a sample is given by 
where n is the number of individuals in the sample and the constant 0.78 indicates the diversity of species in the community. Find S(n) when 
Round to the nearest unit.
A. 8 B. 0 C. 2 D. 6