Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
Answer: B
Mathematics
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?Which of the following statements are true? ?
A. ?All even numbers are composite. B. ?Every third odd number is divisible by 3. C. ?If a number is divisible by 18, it is divisible by 2. D. ?If a number is divisible by 5, it is divisible by 10. E. ?a, b, and c only are true F. ?a, b only are true
Mathematics
Find the unit vector that has the same direction as the vector v.v = 12i + 5j
A. u = 156i + 65j
B. u = 
i + 
j
C. u = 
i + 
j
D. u = - 
i - 
j
Mathematics
Factor the polynomial.15x2 + 29x + 12
A. (15x + 4)(x + 3) B. (3x + 4)(5x + 3) C. (3x - 4)(5x - 3) D. prime
Mathematics
Decompose into partial fractions.
A. 
- 
B. 
+ 
C. 
- 
D. 
- 
Mathematics