Solve the problem.A lot is in the shape of a right triangle. The shorter leg measures 60 m. The hypotenuse is 20 m longer than the length of the longer leg. How long is the longer leg?
A. 60 m
B. 120 m
C. 100 m
D. 80 m
Answer: D
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Evaluate the expression.240 ÷ 5 - 4
A. 44 B. 239 C. 240 D. 231
Determine whether the expression represents a number that is positive, negative, or zero.200
A. Zero B. Negative C. Positive
Solve the triangle.B = 70°, C = 20°, a = 3
A. A = 90°, b = 2.03, c = 2.82 B. A = 90°, b = 2.82, c = 1.03 C. A = 90°, b = 3.82, c = 1.03 D. A = 90°, b = 1.03, c = 2.82
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 636 with r = 0.8. Write a recursive sequence that describes this data, where an denotes the insect density during year n.
A. an = 0.8 an+1 , a1 = 318
B. an = 0.8 an-1 , a1 = 636
C. an = 
, a1 = 636
D. an = 0.8 + an-1 , a1 = 636