Answer:
Step-by-step explanation:
Logarithms can be used to solve exponential equations and to explore the properties of exponential functions.
Answer:
the answer is 29x + 72, none of the following options does not have the answer
Let's first retrace her steps
using PEMDAS we know that we first have to do the operations in parenthesis then multiply before we add or subtract so we have
so far so good now lets check the other side
from this we can determine that all of her math is correct. However, to say that two expressions are equivalent you have to substitude the same number on both expressions and get the same answer. Since she did not do this, amd used x=1 on one expression and used x=-1 on th other her answer is incorrect.
Answer:
1.1783
Step-by-step explanation:
The attached picture shows a cross section of the cylindrical shell that it is convenient to use as a differential of the volume. The radius from the center of revolution is (1-x), so the circumference of the shell is 2π(1-x). Of course, its height is tan(x), so the differential of volume is ...
dV = 2π(1-x)tan(x)
The indefinite integral does not have a nice closed-form solution, but it can be easily integrated numerically from x = 0 to 1 by most scientific and graphing calculators. The attached shows the volume to be about 1.1783 cubic units.
3(x-2)=8 is the equation. Distribute the 3 in to the parenthesis. 3x-6=8 is what you get. Add 6 to both sides to get 3x=14. Divide each side by 3. Then, you get x=4.67. Hope this helps! ;)