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lozanna [386]
3 years ago
12

Find a solution to the following system of equations. –5x + 2y = 9 3x + 5y = 7

Mathematics
2 answers:
jonny [76]3 years ago
4 0
D.
-5(-1) + 2(2) = 5 + 4 = 9
-3 + 10 = 7
Lyrx [107]3 years ago
4 0
The answer is D=(-1,2)
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I don't get this can u help me
murzikaleks [220]
The answer is y=5x. to solve just plug in the x values into the equation for example 5(2) = 10 just like it says on the table. Hope this helps
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3 years ago
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Find the slope and y-intercept of the line in each graph
seraphim [82]

Answer:

  slope: 1; y-intercept: 3

Step-by-step explanation:

The y-intercept is the y-value where the graph crosses the vertical y-axis. That value is 3.

The slope is the "rise" divided by the "run" for the graph. Here, the graph goes up 1 unit for each unit to the right, so the slope is ...

  m = rise/run = 1/1 = 1

The slope is 1, and the y-intercept is 3.

8 0
3 years ago
How do you solve x^2-4X-12=0
Pepsi [2]
                                         x²  -  4x  - 12  =  0

Factor the left side:      (x + 2) · (x - 6)  =  0

The equation is true if either factor is zero.

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If  (x - 6) = 0  then     x = 6 .
3 0
3 years ago
Hello its my birthday please help!!
Aneli [31]
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4 0
2 years ago
Sam the Hummingbird flies at a rate of 2 yards per minute, as modeled by the equation y = 2x. She
daser333 [38]

Answer:

See attachment for plot

Step-by-step explanation:

Given

y =2x

R =+2 --- increment in the rate

First, we need to model the new rate

A linear equation is:

y = mx + b

Where

m = rate

Compare y =2x and y = mx + b. we have:

m =2

The above represents the previous rate.

The new rate:

R =+2

Rewrite as:

R = m+2

R = 2+2

R = 4

So, the model is:

y = Rx

y = 4x

<u>The plot at 1 and 2 minutes</u>

When x = 1

y = 4x = 4 * 1 = 4

When x = 2

y = 4x = 4 * 2 = 8

So, we have:

(x_1,y_1) =(1,4)

(x_2,y_2) =(2,8)

<em>Whether she moves backwards or forward, the distance covered remains the same</em>

<em>See attachment for plot</em>

5 0
3 years ago
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