Translate the English phrase to a mathematical expression. Let x represent the number.-4 times the difference of twice the number and 9
A. -4(2x - 18)
B. -4(2x + 18)
C. -4(2x + 9)
D. -4(2x - 9)
Answer: D
Mathematics
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Find the polynomial of lowest degree that will approximate F(x) throughout the given interval with an error of magnitude less than than 10-3.F(x) = 
, [0, 1]
A. x - 
+ 
- 
B. x - 
+ 
- 
+ 
C. x - 
+ 
- 
+ 
D. x - 
+ 
- 
Mathematics
Find the product.
A. x2 + 9x - 7
B. x2 - 
C. x2 - 9x - 7
D. x2 - 9
Mathematics
Completely factor the polynomial or state that the polynomial is prime.x3 + 343
A. (x + 7)(x2 - 7x + 49) B. (x - 343)(x2 - 1) C. (x - 7)(x2 + 7x + 49) D. (x + 7)(x2 + 49)
Mathematics
Find the weighted mean of the numbers in the table. Round to the nearest tenth.A class of 44 students took a 10-point quiz. The frequency of scores is given in the table. 
A. 7.5 points B. 7.8 points C. 7.6 points D. 7.3 points
Mathematics