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2 years ago

Khan academy midpoint formula question!! Please help

Mathematics

2 answers:

OlgaM077 [116]2 years ago

7 0

3,-7 is the answer for this question

LekaFEV [45]2 years ago

3 0

Answer:

The answer to your question is B = B (3, -7)

Step-by-step explanation:

Data

A = (-6, 5)

M = (-1.5, -1)

Process

1.- Write the formula of Midpoint

Xm = (x1 + x2)/2

Ym = (y1 + y2)/2

2.- Solve for x2 and y2

x2 = 2Xm - x1

y2 = 2Ym - y1

x1 = -6 y1 = 5 Xm = -1.5 Ym = -1

3.- Substitution

x2 = 2(-1.5) + 6

y2 = 2(-1) - 5

4.- Simplification

x2 = -3 + 6

y2 = -2 - 5

5.- Result

x2 = 3

y2 = -7

B (3, -7)

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I REALLY NEED HELP PLEASE!

zhuklara [117]

Answer:

The answer to that question is b

Step-by-step explanation:

6 0

2 years ago

Help me solve this equation:<br> 5X+7X+6-26=29<br> Thanks! I'll give 20 pts.

Oxana [17]

Answer:

1.3

Step-by-step explanation:

5x+7x+6-26=29

12x-20=29

12x=29-20

12x=9

x=1.3

7 0

2 years ago

Read 2 more answers

Assume that women's heights are normally distributed with a mean given by mu equals 62.5 in, and a standard deviation given by

kirza4 [7]

Answer: a) The probability is approximately = 0.5793

b) The probability is approximately=0.8810

Step-by-step explanation:

Given : Mean : $\mu= 62.5\text{ in}$

Standard deviation : $\sigma = \text{2.5 in}$

a) The formula for z -score :

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

Sample size = 1

For x= 63 in. ,

$z=\dfrac{63-62.5}{\dfrac{2.5}{\sqrt{1}}}=0.2$

The p-value = $P(z$

$0.5792597\approx0.5793$

Thus, the probability is approximately = 0.5793

b) Sample size = 35

For x= 63 ,

$z=\dfrac{63-62.5}{\dfrac{2.5}{\sqrt{35}}}\approx1.18$

The p-value = $P(z$

$= 0.8809999\approx0.8810$

Thus , the probability is approximately=0.8810.

6 0

3 years ago

What is the equation of the line that passes through the points (-3,4) and (6,7)

inn [45]

Y=mx+b, m=(y2-y1)/(x2-x1)

m=(7-4)/(6--3)=3/9=1/3

y=x/3 +b, now use either point to solve for b, I'll use (6,7)

7=6/3 +b

7=2+b

b=5 so our line is:

y=x/3 +5 or more neatly...

y=(x+15)/3

6 0

3 years ago

Read 2 more answers

Use the drop-down menus to choose steps in order to correctly solve<br> 4k−6=−2k−16−2 for k.

RoseWind [281]

From figure 1: -

From figure 2: 12

From figure 3: 6

From figure 4: -12

From figure 5: -2

Step-by-step explanation:

We need to solve the equation $4k-6=-2k-16-2$ for k.

Solving:

$4k-6=-2k-16-2\\4k-6=-2k-18\\4k=-2k-18+6\\4k=-2k-12\\4k+2k=-12\\6k=-12\\k=\frac{-12}{6}\\k=-2$

So, the options to be selected are:

From figure 1: -

From figure 2: 12

From figure 3: 6

From figure 4: -12

From figure 5: -2

Keywords: Solving equations

Learn more about Solving equations at:

#learnwithBrainly

7 0

2 years ago