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docker41 [41]
3 years ago
5

How do you work out px+py=a?

Mathematics
1 answer:
natka813 [3]3 years ago
5 0
\bf px+py=a\implies \stackrel{\textit{common factor}}{p}(x+y)=a\implies p=\cfrac{a}{x+y}
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Write the equation that passes through the given point and has the slope indicated: (1, -3); with slope (-3/5)
TiliK225 [7]

Answer:

y = -3/5x - 12/5

Step-by-step explanation:

The equation I'm going to give is going to be in slope-intercept form. If you need it in point-slope, I can do so in an edit or the comments.

Slope-intercept form is: <em>y = mx + b</em> where m is the slope, b is the y-intercept.

So let's plug in our given slope:

y = -3/5x + b

Using this, we now plug in our x- and y-coordinates from the given point to solve for b.

-3 = -3/5(1) + b

-3 = -3/5 + b

Add 3/5 to both sides to isolate variable b.

-3 + 3/5 = b

-15/5 + 3/5 = b

-12/5 = b

Plug this new info back into the original equation and your answer is

y = -3/5x - 12/5

6 0
2 years ago
What is the solution to the equations represented by these two lines
salantis [7]

Look at the picture.

A.) (3, 1)

6 0
3 years ago
3. What is the crucial factor for a sample selection to be random?
Nesterboy [21]
Members possibly involved must have an equal chance of being used, come from an equivalent background, be individually assigned through a random process, and all complete the study.
8 0
2 years ago
If a rectangle has side lengths x+4 and 2x what is the perimeter and area of the rectangle?
pochemuha

Answer:

Perimeter: 6x+8

Area: 2x²+8x

Step-by-step explanation:

Perimeter- the sum of all sides

So, you do x+4+x+4+2x+2x

Simplify that to- 2x+2x+2x+8

And also simplify that to- 6x+8

Area- length*width

So, it's (x+4)*2x

which is 2x²+8x

7 0
3 years ago
Correct answer will have the brainliest answer look at the image pls.
Licemer1 [7]

Answer:

2nd option

Step-by-step explanation:

A=wl=2.75·2.25=6.1875

2 1/4= 2.25

2 3/4= 2.75

4 0
2 years ago
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