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zhenek [66]
3 years ago
5

Solving system equations by substitution I need help with this asap​

Mathematics
1 answer:
WARRIOR [948]3 years ago
4 0
X: is 7 and y: is 4
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find the volume of a rectangular prism if the length is 3x^2, the width is 2xand the height is x^2+3x+5
nevsk [136]

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.

3 0
3 years ago
Evaluate the expression below for m = 350. <br><br> 3 - 5m
musickatia [10]
3 - 5m
plug in 350 for m

3 - 5(350)
multiply

3 - 1,750
subtract

-1,747
3 0
4 years ago
If a van traveled 175 miles in 5 hours, how far could the van travel in 8 hours?
Fittoniya [83]
280 because if you divide 175 by 5 you get 35 which is the amount of miles the van travels in 1 hour and then you multiple 35 by 8 and you have your answer 280
5 0
3 years ago
Let y = safe load in pounds and x = length in feet of a horizontal beam. A constant of proportionality k exists such that y=k/x
Contact [7]

Answer:

Option c. 30,000

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form y*x=k or y=k/x

Let

y ----> safe load in pounds

x ----> length in feet of a horizontal beam

we have

For x=15\ feet, y=2,000\ pounds

Remember that

k=y*x

substitute

k=2,000*15=30,000

7 0
3 years ago
Which of the following would effect an employee net pay
spayn [35]

The following effects that can effect a regular employee's pay is from their effort and time. The effort connects to the time because by doing something that they are hired to be, they get paid from their time and hard work. The time is how long they have been working, the longer they do, the most cash they earn, the less time they do, they get a minimum amount of cash.

6 0
3 years ago
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