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
enyata [817]
3 years ago
5

He vertices of ?ABC are A(2, 8), B(16, 2), and C(6, 2). The perimeter of ?ABC is units, and its area is square units.

Mathematics
2 answers:
iogann1982 [59]3 years ago
8 0

Answer:

Note :

The perimeter is :  AB + BC + CA


AB =√((XB - XA)² + (YB - YA)²) = √((16-2)²+(2-8)²) = √(12²+6²) = √(144+36)=√180

AB = √(36×5) = 6√5 units

same method for :  BC ; CA   ..........


katovenus [111]3 years ago
6 0

Answer:

Perimeter = 32.44 unit

Area of triangle = 30 unit²

Step-by-step explanation:

By distance formula distance between (a,b) and (c,d) is \sqrt{(c-a)^2+(d-b)^2}

So, we have

      AB=\sqrt{(16-2)^2+(2-8)^2}=15.23\\\\BC=\sqrt{(16-6)^2+(2-2)^2}=10\\\\AC=\sqrt{(2-6)^2+(8-2)^2}=7.21

Perimeter = 15.23 + 10 + 7.21 = 32.44 unit

We have s=\frac{15.23+10+7.21}{2}=16.22

Area of triangle=\sqrt{s(s-AB)(s-BC)(s-AC)}=\sqrt{16.22(16.22-15.23)(16.22-10)(16.22-7.21)}=30

Area of triangle = 30 unit²

You might be interested in
Not sure how to do this.​
Misha Larkins [42]

Answer:

slope is 1/4

y intercept is 2

3 0
3 years ago
PLLLLZZZZ HELP!!!!!!!!
Elena L [17]

Answer: D. f(x)=-34x+320

The line of best fit for the scatter plot shown would have a value of positive 320 when x=0 and it’s a drecreasing slope so it will need to have a negative x value.

f(x)=-34x+320

3 0
3 years ago
A factory uses 1/6 of a barrel of raisins in each batch of granola bars. Yesterday, the factory used 1/2 of a barrel of raisins.
Taya2010 [7]

QuestionAnswerA factory uses 1/4 of a barrel of raisins in each batch of granola bars. Yesterday, the factory used 3/4 of a barrel of raisins. How many batches of granola bars did the factory make yesterday?3A water bottle holds 5/6 of a gallon of water. There are 5 5/6 gallons of water in a water tank. How many water bottles can be filled with the water in the tank?7Molly ran 2 laps around the track. If the total distance Molly ran was 3 3/4 miles, how long is each lap around the track?Every day, the Knox Pet Store uses 2 5/6 bags of dog food to feed the dogs. For how many days will 5 2/3 bags of dog food last?Sam grew tomatoes this summer and used them to make 1/2 of a gallon of tomato sauce. He split it into 5 equal portions to freeze for using later. How many gallons was each portion?1/10Kimberly made 2 1/2 quarts of hot chocolate. Each mug holds 1/2 of a quart. How many mugs will Kimberly be able to fill?5Rosa made fancy orange costume decorations for each of the 5 dancers in her year-end dance performance. She cut 5/6 of a yard of ribbon into equal pieces to make the decorations. How long was each piece of ribbon?1/6A factory uses 1/2 of a barrel of raisins in each batch of granola bars. Yesterday, the factory used 1 1/2 barrels of raisins. How many batches of granola bars did the factory make yesterday?3

4 0
3 years ago
Given that m/_a=40 and m/_b=61 find that the measure of angles x and y
brilliants [131]
Answer:
y = 140, x = 159
Step-by-step explanation:
Angle y:
we can find this angle by subtracting 40 from 180, 180-40 = 140 = y
Angle x:
Some measure of an angle plus angle b is equal to 180 degrees: 180-61 = 119
We can now find the measure of the third angle of the triangle: 180-(119+40) = 21
The third angle plus angle x is equal to 180: 180-21 = 159 = x
7 0
1 year ago
Read 2 more answers
Identify the property used to simplify the following expression. (7 + x) + 1 = 7 + (x + 1) a) Associative Property of addition b
gayaneshka [121]
Associative Property of Addition
7 0
3 years ago
Read 2 more answers
Other questions:
  • On the day Alexander was born, his father invested $5000in an account with a 1.2% annual growth rate. Write a function, A(t) tha
    12·1 answer
  • Which statements are true about the shapes? Select three options.
    8·2 answers
  • 19 quarts is equal to how many pints
    8·1 answer
  • Which line is a graph of the equation: 2x + 5y = -10?
    11·1 answer
  • A photocopier costs $25 000. Its unit cost depreciation is calculated at $0.01 per page. The equation to determine its value aft
    9·1 answer
  • What is the volume 9inches 3inches 5inches
    5·1 answer
  • 30-60-90 triangle..find the value of y ?
    8·1 answer
  • Solve the equation, enter the value in the box below.<br> 1 x= 5
    13·1 answer
  • Need help don’t know what to do I’m confused
    11·1 answer
  • HELP PLEASE!! I put a picture
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!