Use the formula for the nth term of a geometric sequence to find the indicated term of the sequence with the given first term, a, and common ratio, r.Find a8 when a = 5,000,000, r = 0.1.
A. 5
B. 0.5
C. 0.005
D. 0.05
Answer: B
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Solve the problem.A rectangular field is to be enclosed on four sides with a fence. Fencing costs $4 per foot for two opposite sides, and $5 per foot for the other two sides. Find the dimensions of the field of area 750 ft2 that would be the cheapest to enclose.
A. 34.2 ft @ $4 by 21.9 ft @ $5 B. 24.5 ft @ $4 by 30.6 ft @ $5 C. 30.6 ft @ $4 by 24.5 ft @ $5 D. 21.9 ft @ $4 by 34.2 ft @ $5
Solve the problem.A bullet is fired with a muzzle velocity of 1444 ft/sec from a gun aimed at an angle of 34° above the horizontal. Find the horizontal component of the velocity.
A. 1197 ft/sec B. -1225 ft/sec C. 974.0 ft/sec D. 807.5 ft/sec
Graph the function.y = cos
A. 
B. 
C. 
D. 
Solve the problem.A psychologist studying the effects of good nutrition on the behavior of rabbits feeds one group a combination of three foods, I, II, and III. Each of these foods contains three additives, A, B, and C, that are used in the study. The table below gives the percent of each additive that is present in each food. If the diet being used requires 19.1 g per day of A, 8.94 g of B, and 14.02 g of C, find the number of grams of food II that should be used each day. Let z represent the number of grams of food III.
A. 2.7z - 60 B. 1.8z + 54 C. 2.1z + 63 D. 128 - 3.2z