Answer:
151.4496
Step-by-step explanation:
Take the sum of its bases, multiply the sum by the height of the trapezoid, and then divide the result by 2
For a cuboid's volume you simply go length x width x heigth so 2x4x5 so it's 40.
Answer: 98
Step-by-step explanation:
Area of four walls = Curved surface area
= perimeter × height
= 28 × 3.5
= 98 m square
Answer:
The length of rectangular is increasing at a rate 0.5714 meters per hour.
Step-by-step explanation:
We are given the following in the question:
Initial dimensions of rectangular box:
Length,l = 10 m
Width,w = 7 m

We have to find the rate of increase of length.
Area of rectangle =

Differentiating we get,

Putting values, we get,

Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.
Answer:
(6x²-11x) that's the answer :)