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If k and h are constants and x

^{2}+kx+7 is equivalent to (x+1)(x+h), what is the value of k?

Answer:

8

In the figure above, if the legs of the triangle ABC are parallel to the axes, which of the following could be the lengths of the sides of triangle ABC?

2,5,sqrt 29

2,5,7

3,3,3 sqrt2

3,4,5

4,5, sqrt41

Answer:

2,5 sqrt 29

Let the function f be defines as f(x)=2x-1. If 1/2f(sqrt t)=4, what is the value of t?

3/sqrt 2

7/2

9/2

49/4

81/4

Answer:

81/4

If k is a positive integer, which of the following must represent an even integer twice the value of the odd integer?

2k

2k+3

2k+4

4k+1

4k+2

Answer:

4k+2

It would be a great help if anyone could even point me into the right direction on these