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Answer:
The required equation is 4h-6=70.
Step-by-step explanation:
It is given that Jahlil is 6 inches shorter than 4 times his sister’s height. Jahlil’s height is 70 inches.
Let h be his sister’s height in inches.
4 times of his sister’s height = 4h
6 inches shorter than 4 times his sister’s height = 4h - 7
Since Jahlil is 6 inches shorter than 4 times his sister’s height, therefore the Jahlil's height is
It is given that Jahlil’s height is 70 inches.
Therefore the required equation is 4h-6=70.
Answer:
16
Step-by-step explanation:
The number to add on both sides to complete the square is the square of the numerical coefficient that accompanies the term in "x", divided by 2.
That is in our case:
Therefore:
That way the left hand side of the equation becomes the perfect square of the binomial: (x+4).
You can also prove that such is correct by developing the square of the binomial: