Answer:
9+x
Step-by-step explanation:
The area of a rectangle is the width multiplied by the length. Working backwards, then, you can find the width or the length by dividing the area by the other one. In this case, the length of the rectangle is the area, or 81-x^2, divided by the width, 9-x. 81-x^2 factored out is (9-x)(9+x), so dividing this by 9-x yields a length of 9+x. Hope this helps!
Answer: The average is 22
Step-by-step explanation: To calculate any average from a database like this one, add all the numbers to find your total, which in this case would be 132. Then divide the total by however many numeric values you had to add, which would be 6. This gives you your final equation, (132 divided by 6 = 22).
Answer:
6
Step-by-step explanation:
(x + 9) * (x - 2) = 60
x^2 - 2x + 9x - 18 = 60
x^2 + 7x - 18 = 60
x^2 + 7x = 78
FACTORING:
x(x + 7) = 78
x = 6
X= (-7,0)
Y= (0,7)
This is for graphing I hope that’s what your test is about.
Answer:
look it up. maybe
Step-by-step explanation:
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