The domain of the exponential function is all real numbers.
Answer:
38.9 cubic yards
Step-by-step explanation:
We have been a new sidewalk will be 5 feet wide, 280 feet long, and filled to a depth of 9 inches (0.75 foot) with concrete. We are asked to find the amount of concrete required to make the side walk.
The amount of concrete required to make the side walk would be equal to the volume of the sidewalk.
We will use volume of cuboid formula to solve our given problem.
We know that .
Therefore, approximately 38.9 cubic yards of concrete are needed.
<h2>
<u>Given</u><u> </u><u>:</u><u>-</u></h2>
length of rectangle = ( 4n-5 )
breadth of rectangle = ( 3n-2)
<h2>
<u>To</u><u> </u><u>find</u><u> </u><u>:</u><u>-</u></h2>
Area and perimeter of rectangle.
<h2>
<u>solution</u><u> </u><u>:</u><u>-</u></h2>
by the question ,
We know the area of rectangle = length × breadth
Area = (4n -5) (3n-2)
now ,
perimeter = 2 ( length + breadth (
= 2 ( 4n-5 + 3n-2)
= 2 ( 7n-7)
= 14n -14
<u>I</u><u> </u><u>hopes</u><u> </u><u>this</u><u> </u><u>helps</u><u>.</u>
Answer:
77.6m (3 s.f.)
Step-by-step explanation:
Please see the attached pictures for full solution.