Factor completely. If the polynomial is prime, then state this as your answer.-84x2 - 49xy - 7y2
A. (-21x - 7y)(4x + y)
B. -7(3x - y)(4x - y)
C. prime
D. -7(3x + y)(4x + y)
Answer: D
Mathematics
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Find 
.y = -sin-1 (5x2 + 4)
A. 
B. 
C. 
D. 
Mathematics
Reduce to lowest terms.
A. 
B. 
C. 
D. 
Mathematics
Divide. Write a mixed numeral for the answer.4
÷ 2
A. 1
B. 1
C. 1
D. 2
Mathematics
Construct a frequency distribution for the given qualitative data.The blood types for 40 people who agreed to participate in a medical study were as follows.
Construct a frequency distribution for the data.
A. 
| O | 20 |
| A | 13 |
| B | 4 |
| AB | 3 |
B.
| O | 18 |
| A | 14 |
| B | 5 |
| AB | 3 |
C.
| O | 19 |
| A | 11 |
| B | 5 |
| AB | 2 |
D.
| O | 19 |
| A | 13 |
| B | 5 |
| AB | 3 |
Mathematics