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PilotLPTM [1.2K]
3 years ago
12

If you try to solve a linear system by the substitution method and get the result 0 = 8, what does this mean? The system has

Mathematics
1 answer:
Andre45 [30]3 years ago
5 0

Answer:

The system has no solution because if 0=8, this means this is an empty set. If you get 2 numbers that don't equal each other for an answer then you know there's no solution

Step-by-step explanation:

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What is the equation of a line with a slope of ​3​ and a point
seraphim [82]
Answer: y = 3x-8

------------------------------------------------
------------------------------------------------

Explanation:

The slope is 3, so m = 3

The given point is (3,1) meaning x = 3 and y = 1. The x coordinate is always listed first in an ordered pair. The general format is (x,y)

We'll use m = 3, x = 3 and y = 1 to find the y intercept

y = mx+b
y = m*x+b
1 = 3*3+b ... plug in m = 3, x = 3 and y = 1
1 = 9+b
1-9 = 9+b-9 ... subtract 9 from both sides
-8 = b
b = -8

----------------

So we're given m = 3 as the slope and we just found that b = -8 is the y intercept

So y = mx+b updates to y = 3x-8. This is the final answer.

----------------

Side Notes:
* The slope of 3 means rise/run = 3/1 indicating each time we go up 3, we move to the right 1
* The y intercept -8 is the location on the vertical y axis numberline where the graph crosses. The point (0,-8) is on this line.

8 0
3 years ago
Let a = 2i + 3, b= i – 1, and c= -3i + 2. Which expression is equivalent to a -b- c?A. –2i +4B. 4i + 2C. 4i + 4D. -2i + 2
34kurt

Given:

\begin{gathered} a=2i+3 \\ b=i-1 \\ c=-3i+2 \end{gathered}

You know that:

a-b-c=(2i+3)-(i-1)-(-3i+2)

In order to solve the operation, you can follow these steps:

1. Distribute the negative signs. Remember the Sign Rules for Multiplication:

\begin{gathered} +\cdot+=+ \\ -\cdot-=+ \\ +\cdot-=- \\ -\cdot+=- \end{gathered}

Then:

=2i+3-i+1+3i-2

2. Combine the like terms (add the Real Parts and add the Imaginary Parts):

=4i+2

Hence, the answer is: Option B.

3 0
1 year ago
Susan purchased n notebooks. They were 4 dollars each. Write an equation to represent the total cost c that Susan paid
Monica [59]
N4=c

n times 4, n being a number of notebooks, would equal c, or the overall cost.
4 0
3 years ago
Which person is vulnerable to identity theft
Ahat [919]

The person which is more vulnerable to identity theft include:

  • The elderly
  • College students
  • Children

<h3>What is Identity theft?</h3>

This involves using someone's personal information to commit fraud and other forms of crime.

The set of people mentioned above are usually naive and innocent thereby making them more vulnerable to identity theft.

Read more about Identity theft here brainly.com/question/1531239

#SPJ1

7 0
2 years ago
A car rental company charges rs 500 a day
Montano1993 [528]

Answer:

total bill=1644

let he drives x kilometer

then

500*2+8*x=1644

1000+8x=1644

8x= 1644-1000

8x= 644

x= 644/8=80.5 km

Step-by-step explanation:

8 0
3 years ago
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