Which of the following expressions are equivalent to - -a/b

B)

Step-by-step explanation:

1. First, we have to know that two negatives equal positive.

2. Given the information above, can simplify to .

3. Let's go through each answer choice and see which one also simplifies to .

A:

B:

Therefore, the answer is B) .

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

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c. histogram

step-by-step explanation: