You are given the length of a rectangular prism of 3x^2, width of 2x and height of x^2 + 3x +5. You are required to find the volume of a rectangular prism. Using the equation V = l x w x h, we multiply the three dimensions.
V = l x w x h
V = (3x^2)(2x)( x^2 + 3x +5)
V = 2x (3x^4 + 9x^3 + 15x^2)
V = 6x^5 + 18x^4 + 30x^3
The volume of the rectangular prism is 6x^5 + 18x^4 + 30x^3.
The value of X in this question is 46
For 46 minutes you can use the computer for $23.
Given that, you can rent time on computers at the local copy centre for a $7 setup charge and an additional $1.75 for every 5 minutes.
We need to find how much time can be rented for $23.
<h3>What is a linear equation?</h3>
A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant.
Now, every minute charge=1.75/5=$0.35
Let time used be t, so we can write an equation as
7+0.35t=23
Solve the equation for t.
That is, 0.35t=16
⇒t=16/0.35=45.714
⇒t=45.714≈46 minutes
Therefore, for 46 minutes you can use the computer for $23.
To learn more about the linear equation visit:
brainly.com/question/14362668.
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Answer:
the 3rd one. the rest are randomized.
Step-by-step explanation:
