Solve the problem. Round to the nearest tenth if necessary.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 32 questions correct. What was the percent of increase?
A. 72%
B. 28%
C. 21.9%
D. 7%
Answer: B
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Factor the special products, which are the sum or difference of two perfect cubes.64p3 + 1
A. (64p + 1)(p2 - 4p + 1) B. (4p + 1)(16p2 - 4p + 1) C. (4p + 1)(16p2 + 1) D. (4p - 1)(16p2 + 4p + 1)
Find the function value.Let f(x) = e3x. Find f(-0.50), rounded to four decimal places.
A. -0.3502 B. 0.3502 C. -0.2231 D. 0.2231
Name the integer that corresponds to each point.
A. A: -6 B: 3 B. A: -5 B: 4 C. A: 4 B: -5 D. A: -4 B: 4
Write an algebraic equation and use it to solve the problem.The three most prominent buildings in a city, Washington Center, Lincoln Galleria, and Jefferson Square Tower, have a total height of 1800 feet. Find the height of each building if Jefferson Square Tower is three times as tall as Lincoln Galleria and Washington Center is 400 feet taller than Lincoln Galleria.
A. Washington Center: 680 feet Lincoln Galleria: 280 feet Jefferson Square Tower: 840 feet B. Washington Center: 120 feet Lincoln Galleria: 40 feet Jefferson Square Tower: 1640 feet C. Washington Center: 600 feet Lincoln Galleria: 200 feet Jefferson Square Tower: 1000 feet D. Washington Center: 440 feet Lincoln Galleria: 40 feet Jefferson Square Tower: 1320 feet