1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepladder [879]
3 years ago
6

The midpoint of AB is (1.2). The coordinates of A are (-3, 6) Find the coordinates of B.

Mathematics
1 answer:
Gala2k [10]3 years ago
3 0

Answer: coordinates of B are (5,-2)

Step-by-step explanation:

let B be (x2,y2)

x1 = -3 y1 = 6

x = 1

y = 2

so

x = (x2 + x1)/2

1 = (x2+(-3))/2

or, 2 = x2 - 3

so, x2 = 5

now

y = (y2+y1)/2

or, 2 = (y2 + 6)/2

or, 4 = y2 + 6

so, y2 = -2

You might be interested in
Help me pleaseeee its ALGEBRA
Drupady [299]
11 is 97
12 is -7
13 is 75
14 is 2
15 is -40
I think there is a mistake in 16
17 is 13
18 is 5
3 0
3 years ago
I need some help please
muminat
Answer: 113.0 ft (bottom right corner)

=====================================

Explanation:

The triangle has a horizontal leg of 220 ft and a vertical leg of x ft. We'll use the tangent rule to connect the opposite side and adjacent side

opposite side = x
adjacent side = 220
this is with the reference angle shown in the diagram

So,
tan(angle) = opposite/adjacent
tan(26) = x/220
220*tan(26) = x
x = 220*tan(26)
x = 107.301169 ... see note below
x = 107.3

Now that we know the approximate value of x, we add on 5.7 to get
x+5.7 = 107.3+5.7 = 113.0

note: make sure your calculator is in degree mode. The value is approximate to 6 decimal places

3 0
3 years ago
1. The length of a rectangle is 8.7cm.
Shkiper50 [21]
The width is 9.982 cm and the area is 34.07 and the diagonal is 9.52 I have I answered what you’re asking.
7 0
3 years ago
A cube has a volume of 2197 m^3. Its surface is to be painted. Each can of paint covers about 40 m^2. How many cans of paint are
Gelneren [198K]
<em>Volume= a³</em>
<em>a=edge</em>
<em>2197 = a³</em>
<em>=> a=13 m</em>
<em>Surface area=6a²=6*13²=6*169=1014 m²</em>
<em>\frac{1014}{40} = 25,35 ≈ 26</em>
<em>=> <u>26 cans needed</u></em>
8 0
3 years ago
If 2x + 5 = 8x, then 12x = ?A.5B.10C.15D.20
butalik [34]
<h2>Answer:</h2>10.\text{ Option B is correct}

<h2>Explanation:</h2>

Given the equation expressed as:

2x+5=8x

First, we need to calculate the value of "x" from the given expression.

Step 1: Given the equation 2x + 5 = 8x

Step 2: Subtract 5 from both sides:

\begin{gathered} 2x+5-5=8x-5 \\ 2x+\cancel{5}-\cancel{5}=8x-5 \\ 2x=8x-5 \end{gathered}

Step 3: Subtract 8x from both sides

\begin{gathered} 2x-8x=8x-8x-5 \\ -6x=\cancel{8x}-\cancel{8x}-5 \\ -6x=-5 \end{gathered}

Step 4: Divide both sides by -6

\begin{gathered} \frac{-6x}{-6}=\frac{-5}{-6} \\ x=\frac{5}{6} \end{gathered}

Step 5: Get the value of 12x. Substitute x = 5/6 into the expression to have:

\begin{gathered} 12x=12(\frac{5}{6}) \\ 12x=\cancel{12}^2(\frac{5}{\cancel{6}^1}) \\ 12x=2\times5 \\ 12x=10 \end{gathered}

Therefore the value of 12x is 10

3 0
1 year ago
Other questions:
  • How many distinct triangles can be formed for which m∠E = 64°, g = 9, and e = 10?
    6·2 answers
  • Tyler has $1350 in the bank. He wants to increase his balance to a total of $2550 by depositing $40 each week from his paycheck.
    7·2 answers
  • You use a juice mix to make orange juice. You combine 12 ounces of the mix with 36
    9·2 answers
  • You want your friend to go a movie with you tonight. She has $8.00 to spend. The movie cost $6.50, a large box of popcorn is $4.
    10·1 answer
  • Can you solve the equation 2/3(4x-5)=8 by using the Division Property of Equality? Explain.
    15·1 answer
  • Why do we estimate a line of best fit for scatter plot
    15·1 answer
  • The investor owns __ of stock A<br><br><br> The investor owns __ of stock <br> B
    13·1 answer
  • The sum of 3 consecutive whole numbers is 279. What is the lowest of the 3 numbers?
    12·2 answers
  • Which graph represents the solution of the system?
    7·1 answer
  • Factor the following expression:<br> 282 – 11x + 12<br> Factored form:<br> 6<br> 7<br> co<br> E
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!