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
NeX [460]
3 years ago
8

the coordinates of the vertices of triangle ABC are a (-2,2), b (5,-3), c (-4,-1). Identify the perimeter of triangle ABC.

Mathematics
1 answer:
Natali5045456 [20]3 years ago
8 0

The formula of a distance between two points:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

A(-2,\ 2);\ B(5,\ -3)\\\\AB=\sqrt{(5-(-2))^2+(-3-2)^2}=\sqrt{49+25}=\sqrt{74}\\\\A(-2,\ 2);\ C(-4,\ -1)\\\\AC=\sqrt{(-4-(-2))^2+(-1-2)^2}=\sqrt{4+9}=\sqrt{13}\\\\B(5,\ -3);\ C(-4,\ -1)\\BC=\sqrt{(-4-5)^2+(-1-(-3))^2}=\sqrt{81+4}=\sqrt{85}\\\\P_{\triangle ABC}=\sqrt{74}+\sqrt{13}+\sqrt{85}

You might be interested in
The cost of custom-made cookies at a bakery is shown on the graph below, where x represents the number of cookies and y represen
melisa1 [442]

Answer:

10

Step-by-step explanation:

sorry if im wrong :(

4 0
3 years ago
Plzzzzzzzzzzzzzzzzz help
andrew11 [14]

Answer:

7y8.9 ft²

Step-by-step explanation:

Easy way:

Rotate the triangle so that the 12.1 ft side in on the bottom becomes the base.

Drop a line from the top down perpendicular to the 12.1 ft base. That makes a right triangle.

sin 71 = height/13.8

0.9455 = height/13.8

height = 13.05 ft

Area = bh/2 = (12.1)(13.05)(0.5) = 78.9 ft²

6 0
2 years ago
Is relation t a function? Is the inverse of relation t a function?
bonufazy [111]

<u>Answer:</u>

Hence, Relation t is a function. The inverse of relation t is a function.


<u>Step-by-step explanation:</u>

We are given the relation as:


x:    0 , 2 , 4 , 6


y:   -10 , -1 , 4 , 8

<em>Clearly from the y-values corresponding to the x-values we could see that each x has a single image (single y-value).</em>

Hence, the corresponding relation is a function.

Now we have to find whether the inverse of this relation is a function or not.

When we take the inverse of this function that is the y-values will behave as a pre-image and x-values as its image.

Hence we will see that corresponding to each y-value there is a unique image hence the inverse relation is also a function.

Hence, Relation t is a function. The inverse of relation t is a function.




3 0
3 years ago
Read 2 more answers
If two pounds of meat will serve 5 people how many pounds will be needed to serve 13 people
miv72 [106K]
The answer is 5.2 pounds of meat. To find this just divide the number of people by what the information you have about servings. 13/5=2.6(number of sets), then you multiply that by how many pounds are in each set. 2.6 sets* 2 pounds per set= 5.2 pounds.
I hope this helped!
4 0
2 years ago
Can someone help with this question
NikAS [45]
1st : Find the volume of the rectangular block:
12 × 10 × 20 = 2400 cm^3.

2nd : Find the volume of a cylinder
\pi  {r}^{2} h
Where r is radius & h is height.
so:
\pi \times 2.2 {}^{2}  \times 5.0
= 76.02654222 cm^3

Lastly, divide the volume of the rectangular block by the volume of the cylinder
2400 ÷ 76.026 = 31.5679226

You can't round it up so the answer is F) 31
4 0
2 years ago
Other questions:
  • What number should be added to the expression x^2 + 2x to change it into a perfect square trinomial?
    13·1 answer
  • Evaluate 4x + 6 for x = 3. 18 13 49 36
    5·2 answers
  • Write the expression 21a^3c^8/7a^5c^3
    5·1 answer
  • The corner candy store had 6 boxes with 30 packages of gum in each in 3 days they had 46 packages left write an equation that th
    10·1 answer
  • If the given sequence is a geometric sequence, find the common ratio.
    13·2 answers
  • Two integers are___________ if they are each the same distance away from zero but on opposite sides of the number line.
    9·2 answers
  • Is 504 divisible by 9
    6·2 answers
  • I need help with school
    7·1 answer
  • 1. 1 71<br> What is the solution to the equation 74-3=7+7X?<br> X=-5<br> X=-4<br> X=4<br> X=5
    10·1 answer
  • The robotics team purchased 3 androids for the purpose of programming. Each of the robots was $398, which included tax. If the t
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!