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1 answer:
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Answer:
A) -9/2
B) 9/4
C) -9/2, same as A)
Step-by-step explanation:
We are given that . We use the properties of integrals to write the new integrals in terms of I.
A) . We have used that ∫cf dx=c∫f dx.
B) . Here we used that reversing the limits of integration changes the sign of the integral.
C) It's the same integral in A)
Answer:
Step-by-step explanation:
Substitute the value of the radius of the Earth into the formula given in the problem, where r is the radius, to obtain the surface area of the Earth:
The problem says that the dry land forms 29.2% of the Earth’s surface, therefore, multiply the surface area by
Threfore, the area of dry land is the following:
The volume of a cylinder can be represented by , where
is the radius and
is the height.
In this case, we are told that ,
, and
.
Plug in the known values.
Find the power.
Multiply from left to right.