Find the product.-4x4(-8x - 7)
A. 60x4
B. 32x + 28
C. 32x5 - 7
D. 32x5 + 28x4
Answer: D
Mathematics
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Which equation matches the given calculator-generated graph and description? Decide without using your calculator.
Ellipse; foci (±4, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Find the sum.15
+ 
A. 7
B. 7
C. 22
D. 21
Mathematics
Find three ordered pairs that are solutions of the given linear equation, and use them to graph the equation.y = 2x + 4
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations.
A. x = -5, y = -4, z = 1; (-5, -4, 1) B. x = -5, y = 1, z = -4; (-5, 1, -4) C. x = 1, y = -4, z = -5; (1, -4, -5) D. inconsistent
Mathematics