Factor the polynomial completely. If the polynomial is prime, so state.-a2 + 6a - 8
A. -(a + 4)(a + 2)
B. -(a + 1)(a + 8)
C. -(a - 1)(a - 8)
D. -(a - 4)(a - 2)
Answer: D
Mathematics
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Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 
A. 0.59 B. 0.51 C. 1.08 D. 1.00
Mathematics
Find the quotient.
÷ 
A. x + 3y
B. (x + 3y)(x - 4y)
C. 1
D. 
Mathematics
Use a proportion to solve the problem.It takes 70 oz of grass seed to seed 3290 ft2 of lawn. At this rate, about how much would be needed for 
of lawn? Round to the nearest whole number.
A. 126 oz B. 128 oz C. 124 oz D. 282,000 oz
Mathematics
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.
+ 
= 1
- 
= 0
A. 
B. 
C. 
D. ?
Mathematics