A rectangle is 9 inches wide and 2 inches long. What is the area of this rectangle
2 answers:
Answer: Area = 18 inches²
Concept:
Here, we need to know how to find the area of a rectangle.
<u>Area (rectangle) = l × w</u>
l = length
w = width
If you are still confused, please refer to the attachment below for a graphical explanation.
Solve:
<u>Given information</u>
l = 2 inches
w = 9 inches
<u>Given equation</u>
Area = l × w
<u>Substitute values into the equation</u>
Area = 2 × 9
Area = 18 inches²
Hope this helps!! :)
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= 3
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= 2
3. =
= 2
4. =
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Given that:
The function to represent the growth of Neveah hair is
where, x represents the number of months since her last hair cut.
To find:
The inverse of function and time when her hair will have grown 6 inches.
Solution:
We have,
Put f(x)=y.
Interchange x and y.
Isolate y.
Put .
So, the required inverse function is . It represents the number of months to grow her hair x inches.
She can predict when her hair will have grown 6 inches by putting x=6 in the inverse function.
Put x=6 in the inverse function.
Therefore, growth of her hair is 6 inches in 7 months.