All categories

2 years ago

The midpoint of AB is )M(7,−5). If the coordinates of A are (6,−7), what are the coordinates of B?

Mathematics

2 answers:

Anettt [7]2 years ago

7 0

Answer:

B(8, -3)

you can consult

Step-by-step explanation:

A(6, -7); B( x, y); M(7;-5)

x=7×2-6=8

y=-5×2-(-7)=-3

Maslowich2 years ago

6 0

Answer:

(8,-3)

Step-by-step explanation:

mid point formula for graph:

$(\frac{x_{1}+ x_{2} }{2} ,\frac{y_{1} +y_{2} }{2} )$

$(\frac{6+x}{2} ,\frac{-7\\+y}{2} )$

$\frac{6+x}{2} =7$

$x$ is the x cordinate of B which will be

TO FIND Y:

$\frac{-7\\+y}{2} =-5$

$y=-3\\$

You might be interested in

What is 27ac-9abc+15acf

Oliga [24]

3ac(9-3b+5f) you got to do factorization

5 0

3 years ago

Mark is creating a tarp to cover his new vegetable garden outside. He needs enough nylon to cover the garden which is 10 feet by

Cerrena [4.2K]

Answer:

$91.67.

Step-by-step explanation:

We have been given that Mark is creating a tarp to cover his new vegetable garden outside. He needs enough nylon to cover the garden which is 10 feet by 8 feet and then he will attach rope along the edges of the nylon to stake it down with.

A. Let us find area covered by nylon by multiplying 10 by 8.

$\text{ Amount of Nylon needed to cover the garden}=10\text{ feet}*8\text{ feet}$

$\text{ Amount of Nylon needed to cover the garden}=80\text{ feet}^{2}$

Now let us convert area of needed nylon from square feet into square yard by multiplying 80 by 0.111111.

$\text{ Amount of Nylon needed to cover the garden}=80*0.111111\text{ yards}^{2}$

$\text{ Amount of Nylon needed to cover the garden}=8.88889\text{ yards}^{2}$

Now let us multiply 8.88889 by 5.25 to find the cost of nylon cover of the garden.

$\text{ Cost of Nylon cover of the garden}=8.88889*5.25$

$\text{ Cost of Nylon cover of the garden}=46.6666725\approx 46.67$

Therefore, the cost of nylon cover will be $46.67.

B. Now let us find length of rope by finding the perimeter of the garden.

$\text{Length of rope}=2(10+8)\text{ feet}$

$\text{Length of rope}=2(18)\text{ feet}$

$\text{Length of rope}=36\text{ feet}$

Now let us find the cost of 36 feet long rope by multiplying 36 by 1.25.

$\text{Cost of rope}=36*1.25$

$\text{Cost of rope}=45$

Therefore, the cost of rope will be $45.

To find the total cost to make the cover we will add cost of nylon cover and cost of rope.

$\text{Total cost to make the cover}=45+46.67$

$\text{Total cost to make the cover}=91.67$

Therefore, it will cost $91.67 for Mark to make the cover for vegetable garden.

7 0

3 years ago

When moving to the left or west, you ______ 1 for every degrees longitude

Vitek1552 [10]

Answer:

You are subtracting because your going left and how I remember this is latitude flatitude it weird but thats how I remember.

4 0

3 years ago

Read 2 more answers

Write an equation of the line passing through the point (-8, -4) that is perpendicular to the line given by y= 1/6 x+3.

user100 [1]

Answer:

y+4=-6(x+8) point-slope form

y=-6x-52 slope-intercept form

6x+y=-52 standard form

Step-by-step explanation:

Slope-intercept form of a line is y=mx+b where m is the slope and b is the y-intercept.

Lines that are perpendicular have opposite reciprocal slopes.

So the slope of y=(1/6)x+3 is 1/6.

The opposite reciprocal of (1/6) is -6.

So the equation for the line we are looking for is in the form:

y=-6x+b (Since the slope of our new line is -6)

Now we want our line to go through (-8,-4).

So plug that in:

-4=-6(-8)+b

-4=48+b

Subtract 48 on both sides:

-52=b

The equation for the line we are looking for is

y=-6x-52.

Now you could do other forms.

Another one is point-slope form.

We already know it goes through (-8,-4) and a slope of -6.

Point slope form is: y-y1=m(x-x1) where m is the slope and (x1,y1) is a point on the line.

Plug in the information to get:

y-(-4)=-6(x-(-8))

y+4=-6(x+8)

I'm going to do one more form.

Standard form is ax+by=c where a,b,c are integers.

y=-6x-52

Add 6x on both sides:

6x+y=-52

6 0

3 years ago

Robert wants to sew his own tie. The sewing pattern he found shows he needs 60 inches of fabric. If every foot of fabric costs $

hichkok12 [17]

Answer:

60 inches of fabric or 5 feet of fabric will cost $10.00

Step-by-step explanation:

60 in of fabric

1 foot of fabric = $2.00

60 inches to feet = 5 feet

5 * 2.00 = $10.00

5 0

3 years ago