Write a numerical expression for the phrase and simplify it.The product of -5 and the sum of 1 and -2

A. -5[1 + (-2)]; 5
B. -5 + (1)(-2); -7
C. (-5)(-2) + 1; 11
D. (-5)(1) + (-2); -7


Answer: A

Mathematics

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Find the coordinates of the vertex of the quadratic function.f(x) = 11(x - 5)2 + 4

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Mathematics