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Ksju [112]
2 years ago
13

Which graph shows a system of equations with no solutions?

Mathematics
1 answer:
podryga [215]2 years ago
4 0

Graph of Parallel lines shows a system of equations with no solutions

Step-by-step explanation:

Consider a set of equations

7x - 2y = 16\\21x + 6y =24

If we solve this both equations using any one of the solving method, (Substitution method) then we will get

7x-2y=16\\7x=16+2y\\x=\frac{16+2y}{7}

substituting the following x in 2nd equation (21x + 6y = 24) We get

21(\frac{16+2y}{7} )+6y=24\\3(16+2y)+6y=24\\48+6y+6y=24\\12y=24-48\\y=-\frac{24}{12} \\y=-2

Put y= -2 in x equation

x=\frac{16+2(-2)}{7}\\ x=\frac{16-4}{7}\\\x=\frac{12}{7} \\x=1.71

Comparing these (x,y) values we can understand that they never meet at a point

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What’s 5(x-4)+2 as a verbal expression?
sesenic [268]

The verbal expression for the mathematical expression 5(x - 4) + 2 is the number 5 times the difference between an unknown x and the number 4 and plus 2.

<h3>What is an expression?</h3>

It is defined as the combination of constants and variables with mathematical operators.

It is given that a mathematical expression as below:

= 5(x - 4) + 2

Here x is the unknown number

The number

Number 5 times the difference between an unknown x and number 4 and plus 2

Thus, the verbal expression for the mathematical expression 5(x - 4) + 2 is number 5 times the difference between an unknown x and number 4 and plus 2.

Learn more about the expression here:

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7 0
1 year ago
2.a)Find the prime factorizations of 90 and 168.
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100|2\\.\ 50|2\\.\ 25|5\\.\ \ 5|5\\.\ \ 1|\\\\100=2\cdot2\cdot5\cdot5\\\\126|2\\.\ 63|3\\.\ 21|3\\.\ \ 7|7\\.\ \ 1|\\\\126=2\cdot3\cdot3\cdot7
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3 years ago
Graph 25 = -5y -3x using the slope and y-intercept
wlad13 [49]

Step-by-step explanation:

you move -5y to the other side.

25=-5y-3xsubtract 25 both sides

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Answer:

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Step-by-step explanation:

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3 years ago
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<h2>28 units²</h2><h2>____________________</h2>

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