Use a calculator (in radian mode) to evaluate the given expression.tan-1 0.5774
A. 0.6515
B. 0.5236
C. 30.0021
D. 1.9097
Answer: B
Mathematics
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Factor by grouping.15x2 - 20x + 12x - 16
A. (15x - 4)(x + 4) B. (15x + 4)(x - 4) C. (5x + 4)(3x - 4) D. (5x - 4)(3x + 4)
Mathematics
Evaluate the integral.
Select the correct answer.
a. –5
b. 8
c. 4
d. –8
Mathematics
If a ball is thrown directly upward with a velocity of 48 ft/s, its height (in feet) after t seconds is given by y = 48t-16t². What is the maximum height attained by the ball?
What will be an ideal response?
Mathematics
Use properties of real numbers to calculate the expression mentally.77 + 99
A. 175 B. 167 C. 176 D. 177
Mathematics