Answer:

Step-by-step explanation:
Given

Required
Find f(x - 4)
Substitute x - 4 for x

Expand

Collect like terms


I think it is D 1.8. hope this help's
The equation -21t - 4 = 10 - 2t has only one solution
<u>Solution:</u>
Given, equation is – 21t – 4 = 10 – 2t
We have to find how many solutions does the above given equation have
Now, let us solve the given equation to find the number of solutions it has.
Then, - 21t – 4 = 10 – 2t
Taking like terms to one side of the equation we get,
- 21t + 2t = 10 + 4

here we can see only one value of t.
Hence, the given equation has only one solution.
Answer:
The volume of the cylinder is 900 cubic inches
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Step-by-step explanation:
Given
Let V1 represent the volume of a cone and V2 represents the volume of a cylinder

Required
Determine the volume of a cylinder with same dimension
The volume of a cone is calculated as:

The volume of a cylinder is calculated as:

Since, the cone and cylinder have the same dimensions, we can substitute
for
in 
So, we have:

Multiply both sides by 3



Substitute
for 


<em>Hence, the volume of the cylinder is 900 cubic inches</em>
Answer:
120,960 ways
Step-by-step explanation:
Assuming that each piece is unique, then the order of each piece matters.
There are 9 pieces in total, there are 3 options for the first piece (3 piano pieces), and the remaining 8 pieces can be permuted. The number of possible arrangements is:

The program can be arranged in 120,960 ways.