by using the quadratic equation.
Answer:
Step-by-step explanation:
Here the coefficients of this quadratic equation are {7, -1, -3}. Note that the given equation must be rewritten in standard form: 7x^2 - x - 3.
Then the discriminant, b^2 - 4ac, is (-1)^2 - 4(7)(-3), or 1 + 84, or 85. Because this discriminant is positive, the given quadratic has two real, unequal roots. These roots are:
-(-1) ± √85
x = ------------------
14
or:
1 ± √85
x = ------------------
14
Gerard has left 15.33 square feet area to tile.
The width of the remaining area = feet
The width of the remaining area = feet
The length of the remaining area = 7 feet
The area of a rectangle is the product of length to width.
So, the remaining area =
The remaining area = square feet
The remaining area = 15.33 square feet
So, Gerard has left to tile = 15.33 square feet
Thus, Gerard has left 15.33 square feet area to tile.
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thank you!!!!!
Answer:
I'm gonna take some liberty. I assume you mean if there is 12 questions. if so that means you would need to get 5 wrong.
Step-by-step explanation:
Here are step-by-step instructions showing you how we calculated 7 out of 12 as a percentage: The first step is to divide 7 by 12 to get the answer in decimal form: 7 / 12 = 0.5833. Then, we multiplied the answer from the first step by one hundred to get the answer as a percentage: 0.5833 * 100 = 58.33%
The sales tax percentage is 7%.