Indicate whether the equation has no solution or is true for all real numbers. If neither is the case, solve for the variable.15x - 5(6 + 3x) = 30
A. {x|x is a real number}
B. 
C. 
D. ?
Answer: D
Mathematics
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Solve.Find the points of intersection of the ellipse 16x2 + 25y2 = 400 and the line 5y + 4x = 20.
A. (0, -5), (0, -4) B. (0, 4), (5,0) C. (0, -4), (-5, 0) D. (0, 5), (4, 0)
Mathematics
Solve the equation 
for ?y. Round your answers to two decimal places, if necessary.
?
A. 
or 
B. 
or 
C. 
or 
D. None of the above.
Mathematics
The graph of a function that shows constant percentage growth is concave up.
Answer the following statement true (T) or false (F)
Mathematics
Name the angle in five different ways.
A. Angle EFG, ?EFG, angle E, ?E, or ?GFE B. Angle GFE, ?F, angle EFG, ?EFG, or ?GFE C. Angle GFE, ?GFE, angle EGF, ?EGF, or ?G D. Angle F, angle EFG, angle GEF, ?EFG, or ?F
Mathematics