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rewona [7]
3 years ago
14

Бу — 7 = 7 3х — 8y = — 31

Mathematics
2 answers:
gulaghasi [49]3 years ago
7 0

Answer:

I hope this helps!!!!!

grin007 [14]3 years ago
6 0

Answer:

creo que es X= 13 , Y= -1

Step-by-step explanation:

3*(6y-7)-8y=-31

18y-21-8y=-31

10y=-10

y=(-1)

6*-1-7= x ----> X=13

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Identifying the slope, y-intercept and x- intercept of each
Elena L [17]

Answer:

slope= -3

y-intercept= 6

Step-by-step explanation:

1. Approach

To solve this problem, one needs the slope and the y-intercept. First, one will solve for the slope, using the given points, then input it into the equation of a line in slope-intercept form. The one can solve for the y-intercept.

2.Solve for the slope

The formula to find the slope of a line is;

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Where (m) is the variable used to represent the slope.

Use the first two given points, and solve;

(1, 3), (2, 0)

Substitute in,

\frac{(0)-(3)}{(2)-(1)}

Simplify;

\frac{-3}{1}\\\\=-3

3. Put equation into slope-intercept form

The equation of a line in slope-intercept form is;

y = mx + b

Where (m) is the slope, and (b) is the y-intercept.

Since one solved for the slope, substitute that in, then substitute in another point, and solve for the parameter (b).

y=-3x+b

Substitute in point (3, -3)

-3=-3(3)+b\\-3 = -9 + b\\6 = b

4 0
3 years ago
The function y=ex is vertically stretched by a factor of 2, reflected across the x-axis, and then shifted down 3 units, find the
Anettt [7]

Answer:

y = - 2 e^{x} - 3

Step-by-step explanation:

We have to vertically stretch the function y = e^{x} by a factor of 2.

Then the function will become y = 2e^{x}.

Then it is reflected across the x-axis.

So, the new function will be y = - 2e^{x}.

Now, if the function is shifted down 3 units then the final function will become y = - 2 e^{x} - 3 (Answer)

6 0
3 years ago
Point give away. enjoy 5 more questions
Anettt [7]

Answer:Thanks!

Step-by-step explanation:

6 0
3 years ago
Find all solutions to the equation. 7 sin2x - 14 sin x + 2 = -5
Alenkinab [10]
7sin²x-14sinx+2= -5
7sin²x-14sinx+7=0
7(sin²x-2sinx+1)=0
sin²x-2sinx+1=0
(sinx-1)(sinx-1)=0
sinx-1=0
sinx=1
x= \frac{ \pi }{2} +2n \pi  where n is an integer


4 0
3 years ago
What is this one? its my math exam!!!!
Law Incorporation [45]

Answer:

x=-6

Step-by-step explanation:

3 0
3 years ago
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