Decide whether the statement is true or false.The x-intercepts of the ellipse with equation 
+ 
= 1 are (7, 0) and (-7, 0).
A. True
B. False
Answer: A
Mathematics
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Evaluate the expression for the given values of the variables, if possible.w - 5 ? v + 48 ÷ (-6), for v = 15, w = 80
A. -787 B. -3 C. 1117 D. -23
Mathematics
Find f'(x).f(x) = -7 ln x - x5 + 2
A. - 
- 5x
B. - 
- 5x4
C. - 
- 5x4
D. 
- 5x4
Mathematics
Find the weighted mean of the numbers in the table. Round to the nearest tenth.Find the weighted mean salary for the employees. Round to the nearest thousand dollars. 
A. $39,000 B. $40,000 C. $41,000 D. $45,000
Mathematics
Use the method of your choice to factor the trinomial, or state that the trinomial is prime.8x2 - x - 30
A. (8x + 2)(x - 15) B. (8x - 2)(x + 15) C. (8x - 15)(x + 2) D. (8x + 15)(x - 2)
Mathematics