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german
3 years ago
15

Please help me it dues in 30 minutes​

Mathematics
1 answer:
Anna71 [15]3 years ago
6 0

Answer:

y=-1/4x+2

Step-by-step explanation:

Slope intercept form is :

y=mx+b

where m is the slope, and b is the y intercept.

We are given the slope, it is -1/4. We are also given the y intercept, it is (0,2). For this form, the 0 in (0,2) is ignored, and we consider the y intercept to be 2.

So, m is -1/4, and b is 2. Substitute the values into the equation above.

y= -1/4x+2

So, the equation in slope intercept form is

y= -1/4x+2

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Solve the system of equations algebraically.
andrew11 [14]

Answer: d. (17, 20)

Step-by-step explanation:

We have the following system of equations:

x-3y=8 (1)

5x-4y=5 (2)

Isolating x from (1):

x=\frac{8+3y}{4} (3)

Substituting (3) in (2):

5(\frac{8+3y}{4})-4y=5 (4)

Isolating y:

\frac{40}{4}+\frac{15 y}{4}-4y=5 (5)

10-5=4y-\frac{15 y}{4} (6)

y=20 (7)

Substituting (7) in (1):

x-3(20)=8 (8)

Isolating x:

x=17 (9)

Hence, the correct option is d. (17, 20)

8 0
3 years ago
Write 2.385 as a fraction or mixed number in simplest form.
never [62]
2.385 can be written as 2385/1000, which is equivalent to 477/200. As a mixed number it is writte as 2 77/200. Hope I helped!
5 0
3 years ago
Select the correct inequality for the graph given
Kaylis [27]

Answer:

y<= 3x-1

Step-by-step explanation:

When it comes about inequalities, keep in mind the following

the < sign means that the regions is under whatever is to other side, and the > means that the region is above whatever is on the other side of the sign

So, we see for the graphic that there is a region below a line, this suggests us that there is a < sign implied

The other thing is that there is a convention in math, is the line is graphed using a dashed line, it meas that it is not part of the region, if the line is graphed using a solid line (a continued line) then the line is inside the region, hence there is a = sign implied.

So the answer is y<= 3x-1

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Lelu [443]

Answer:

y=9%

Step-by-step explanation:

x=18%

y=9%

It is in a pattern like x=y+y

7 0
3 years ago
Read 2 more answers
What are the zeros of the function below? Check all that apply.
nordsb [41]

F, A.

-3, 1

use a graphing calc

or do

x+3 = 0 or x-1 = 0 to get x = -3 or x = 1


8 0
2 years ago
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