Write the two equations in slope-intercept form and then determine how many solutions the system has.x + 2y = 0y = - 
x
A. Infinite number
B. None
C. One
Answer: A
Mathematics
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Use a sum-to-product identity to rewrite the expression.sin 30° + sin 58°
A. 2 cos 44° sin 14° B. -2 sin 44° sin 14° C. 2 sin 44° cos 14° D. 2 cos 44° cos 14°
Mathematics
Add. Combine like terms, and write the answer in descending order.(3a2 - 5a + 1) + (9a - 6)
A. 3a2 + 14a + 5 B. 3a2 + 8a + 7 C. 3a2 + 4a - 5 D. 7a2 - 5
Mathematics
Determine whether the graph shown is the graph of a polynomial function.
A. polynomial function B. not a polynomial function
Mathematics
Solve the equation.
+ x = 3
A. 
B. 11
C. 
D. 
Mathematics