Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.A company increased the number of its employees from 120 to 135. Find the percent increase.
A. 88.9%
B. 12.5%
C. 52.9%
D. 11.1%
Answer: B
Mathematics
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Identify the distribution as symmetric, left-skewed, or right-skewed.Weights of new-born babies
A. Left-skewed B. Symmetric C. Right-skewed
Mathematics
Solve the system to the nearest 0.1 for each variable by using a graphing calculator.-0.4x + 2.6y = -3.5-3.1x = -3.6y + 1.6
A. x = -2.7; y = -1.6 B. x = -2.4; y = -1.9 C. x = -0.8; y = -1.5 D. x = -2.5; y = -1.7
Mathematics
Evaluate the function at the given values of the variable.f(x) = 7x2 + 6x + 1
a. f(-7)
b. f(-9)
A. 2360, 3916 B. -139, -179 C. 302, 514 D. 4116, 6804
Mathematics
Evaluate the expression, given x = -2, y = 3, and a = -4.
A. -56 B. -1 C. 56 D. 8
Mathematics