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d1i1m1o1n [39]
3 years ago
10

What is the solution the the system of equations graphed below y=-2x-4 y=x+2

Mathematics
2 answers:
garik1379 [7]3 years ago
8 0
Y = 2x - 4
y = x + 2

2x - 4 = x + 2
2x - x = 2 + 4
x = 6

substitute x = 6 into one of the first 2 equation, i chose the 2nd one.
y = 6 + 2
y = 8

Natali5045456 [20]3 years ago
5 0

Answer:

(-2,0)

Step-by-step explanation:

y=-2x-4

y=x+2

------

  • x+2= -2x-4
  • 3x=-6
  • x=-2
  • y=x+2=-2+2=0

(-2, 0) is the answer

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Answer:

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Step-by-step explanation:

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2 years ago
How much, in total, did Noel spend to cash her three most recent paychecks?
astra-53 [7]

The total amount of money that was spent by Noel to cash her three (3) most recent paychecks is equal to $10.99.

<h3>What is a paycheck?</h3>

A paycheck can be defined as a financial document that is issued by an employer to an employee as payment for the work done over a period of time.

<h3>How to calculate the amount spent.</h3>

From the table, we can see that the amount of money charged by the bank as check processing fee is equal to $1.99, as well as 1.99% (0.0199) of the amount being cashed by a customer.

Thus, we would compute the amount of money spent by Noel as follows:

Noel = (0.0199 × 100.53) + (0.0199 × 119.38) + (0.0199 × 122.52) + (1.39 × 3)

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Noel = $10.99.

Read more on paycheck here: brainly.com/question/26174938

7 0
2 years ago
Need help asap please! If f(x)=7x and g(x)=3x+1 find (f o g)(x) A.10x+1 B.21x+1 C.21x^2+7x D.21x+7
Elanso [62]

Replace the x in 7x by (3x + 1):-

(f o g)(x) = 7 * (3x + 1)

= 21x + 7   which is choice D.

3 0
3 years ago
Read 2 more answers
Question is in the picture<br>please help
LiRa [457]

When given the graph of a function, the domain would include all the points that there is a graph. The strategy is to find what <em>is not</em> included.

What we are looking for are points of discontinuity. Think of it as when you remove your pencil from the paper.

From left to right, the graph stops at x = -3. So anything less than -3 is in the domain. Next, the graph starts up again at x =-1 after an asymptote (the vertical dashed lines). This piece goes to x = 4. So our domain is from -1 to 4.

Lastly, there's a jump from 4 to 5 and the graph goes on again. After 5, we take all the stuff more than it. So x > 5 is in the domain.

So x < -3, - 1 < x < 4, and x > 5 appears to be our domain. However, end points needed to be checked to see if we include them or not. Again we go left to right.

At x = -3 there is a filled (or closed) circle and that means we include -3.

At x = -1 there is an asymptote. Asymptotes are things you get close to but don't get to. (Think of it as the "I'm Not Touching" game you play on car trips.) So we exclude -1.

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Now we refine our domain for the endpoints.

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Step-by-step explanation:

We are given the following in the question:

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Total minutes of video = 9000 minutes

Total number of videos to be watched =

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Guo Qi needs to watch 1125 videos.

Number of days required =

=\dfrac{\text{Total number of videos}}{\text{Videos watched in one day}}\\\\=\dfrac{1125}{15}=75

Guo Qi requires 75 days to watch videos on Khan Academy.

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