Solve the problem. Express the answer as a mixed number when appropriate.Ellen is knitting a scarf with one 2 -inch blue stripe, one 1
-inch green stripe, and one 4
-inch white stripe. How wide is the scarf?
A. 
in.
B. 2
in.
C. 8 in.
D. 
in.
Answer: C
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Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceAn ideal projectile is launched from level ground at a launch angle of 26° and an initial speed of 48 m/sec. How far away from the launch point does the projectile hit the ground?
A. ? 185 m B. ? 290 m C. ? 230 m D. ? 60 m
Fill in the blank with one of the words or phrases listed below. 
The 
are . . ., -3, -2, -1, 0, 1, 2, 3, . . . .
A. expression B. opposites C. inequality symbols D. integers
Group the objects into classes so that all the elements within each class are topologically equivalent and no elements from different classes are topologically equivalent.A. a boltB. a brickC. a horseshoeD. a pencil
A. A; B, C and D B. A, C and D; B C. A, B, C, and D D. A, B, C, and D E. A, B and C; D
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856