Seven pipes empty a water tank in five days. In how many days would four pipes empty this tank? Which date of the year sees the longest day? How many digits exist in the binary system of numbers? Circles sharing the same centre are called…? What is the volume of a cube which has edges measuring 5cm? Which Greek mathematician is often referred to as the 'father of geometry'? 'For every action there is an equal and opposite reaction' is one of Newton's Laws of motion, which number law?

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.

the answer is d

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