Write the quadratic equation in standard form and then choose the value of "b." (2x - 1)(x + 5) = 0
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10
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ps help me

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The quadratic equation has a general form of

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So your "b" is 9.

Hope this helps.

 Answer is in the steps

Step-by-step explanation:

(2x-1)(x+5) = 0    First expand the left side by apply the distributive property twice.

(2x -1)(x+5) =0  

x(2x -1) =  2x^2 -1x  

5(2x -1) =  10x -5  

Now rewrite them all together

2x^2 - 1x +10x -5  = 0   combine like terms on the left side.

+ 9x -5 = 0      a is the first leading coefficient,b is the second leading coefficient, and  c is the constant.

So in this case, the value of b is 9.

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.