MATHEMATICS MIDDLE SCHOOL

I need help for this questionwhat's the equation for the following:

write the equation of the line perpendicular to y=1/3x-4 and passes through the point (-2,1)

Answers

Answer 1
Answer: Standard form:
y - 1 = - 3(x + 2)
Slope-intercept:
y = - 3x - 5

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Mila thinks 1/2 is equivalent to 2/3 and to 3/6

Answers

Hi

1/2 = (1×3)/(2×3) = 3/6

But 

1/2 ≠ 2/3
Mila is right and wrong because 1/2 isn't equal to 2/3 but, 1/2 is equal to 3/6.

Use the formula P = 2l + 2w. Find the perimeter of a rectangle with a length of 12.9 ft and a width of 19.3 ft.

Answers

The answer is P= 64.4 hope it helped

Write the equation of the line passing through (7,-4) and (-1,2) in slope intecept form

Answers

Answer: y = (-3x)/(4)  + (5)/(4)

Step-by-step explanation:

Using the formula for finding equation of a line :

(y_(2) - y_(1) )/(x_(2)- x_(1)) = (y - y_(1) )/(x - x_(1) )

From the question:

X1 = 7

X2 = -1

Y1 = -4

Y2 = 2

Substituting into the formula , we have

(2 - (-4))/(-1 - 7) = (y - (-4))/(x - 7)

⇒ (6)/(-8) = (y+4)/(x - 7)

(-3)/(4) = (y+4)/(x - 7)

4( y + 4) = -3 ( x - 7)

4y + 16 = -3x + 21

4y        = - 3x + 21 - 16

4y        = - 3x + 5

y           = -3x/4  + 5/4

Answer:

y=-3/4x+5/4

Step-by-step explanation:

What is an equation that has no common solutions with the line y = 2x + 2?

Answers

 2x + 2y = 4  y = 2x + 2 and x = 4 - 2y 

Explain the difference between a parallelogram and a rhombus

Answers

A parallelogram has opposite sides parallel and equal in length wise. A rhombus has all four sides equal, unlike a parallelogram.

Which statement describes the graph?

Answers

Answer : D

From the given graph , we can see that

The graph crosses the y axis at 7

So y axis is (0,7)

The graph is increasing at first  and reaches (-2,8)  and then start  decreasing

The graph start increasing at x=-10  and goes on increasing till x= -2

then the graph start decreasing at x=-2  and goes in decreasing till x= 10

The graph crosses the y axis at (0,7), increasing from x=-10  to x=-2  and decreasing from x=-2 to x=10

Answer D is correct

Answer is d

Step-by-step explanation:
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