Find the perimeter of a triangle with vertices A(2,5) B(2,-2) C(5,-2). Round your answer to the nearest tenth and show your work.​

Edit: Nvm I got it:)

Answers

Answer 1

Answer:

Step-by-step explanation:

Question

Find the perimeter of a triangle with vertices A(2,5) B(2,-2) C(5,-2). Round your answer to the nearest tenth and show your work.​

perimeter of a triangle = AB+AC+BC

Using the distance formula

AB = sqrt(-2-5)²+(2-2)²

AB = sqrt(-7)²

AB =sqrt(49)

AB =7

BC = sqrt(-2+2)²+(2-5)²

BC = sqrt(0+3²)

BC =sqrt(9)

BC =3

AC= sqrt(-2-5)²+(2-5)²

AC= sqrt(-7)²+3²

AC =sqrt(49+9)

AC =sqrt58

Perimeter = 10+sqrt58


Related Questions

Please help me. I don’t understand matrices

Answers

Answer:

A. [tex]\orange {\begin{bmatrix} 4 & 11 \\ 3 & 0 \end{bmatrix}} [/tex]

Step-by-step explanation:

[tex] A= \begin{bmatrix} 5 & - 8 \\ 3 & 0\end{bmatrix} \: and \: B= \begin{bmatrix} 2 & - 9 \\ 1 & 0\end{bmatrix} [/tex]

[tex]\therefore 2A= 2\begin{bmatrix} 5 & - 8 \\ 3 & 0\end{bmatrix} \: and \: \: 3B= 3\begin{bmatrix} 2 & - 9 \\ 1 & 0\end{bmatrix} [/tex]

[tex]\therefore 2A= \begin{bmatrix} 10 & - 16 \\ 6 & 0 \end{bmatrix} \: and \: \: 3B= \begin{bmatrix} 6 & - 27 \\ 3 & 0\end{bmatrix} [/tex]

[tex]\therefore 2A-3B= \begin{bmatrix} 10 & - 16 \\ 6 & 0 \end{bmatrix} - \begin{bmatrix} 6 & - 27 \\ 3 & 0 \end{bmatrix} [/tex]

[tex]\therefore 2A-3B= \begin{bmatrix} 10-6 & - 16-(-27) \\ 6-3 & 0-0 \end{bmatrix} [/tex]

[tex]\therefore 2A-3B= \begin{bmatrix} 4 & - 16+27 \\ 3 & 0 \end{bmatrix} [/tex]

[tex]\huge \red {\therefore 2A-3B= \begin{bmatrix} 4 & 11 \\ 3 & 0 \end{bmatrix}} [/tex]

Today, everything at a store is on sale. The store offers a 20% discount. Write an expression that shows the discount price of an item that costs x dollars. ​

Answers

Answer:

0.8x dollars

Step-by-step explanation:

Answer:

Step-by-step explanation:

80%*x = 0.8x

PLEASE HELP ME ASAP

Answers

Answer:

Look below

Step-by-step explanation:

(a)

The Pythagorean Theorem is a^2+b^2=c^2. In this case. a=10, b=y, and c=2+y.

So, [tex](2+y)^{2}=10^{2}+y^{2}[/tex].

(b)

Using the equation (2+y)^2=10^2+y^2, solve for y.

(2+y)^2=10^2+y^2Square it, 4+4y+y^2=100+y^2Subtract y^2, 4+4y=100Subtract 4, 4y=96Divide by 4, [tex]y=24[/tex].
Use the formula a^2 + b^2 = c^2

Choose the inequality that represents the following graph.

Answers

Answer:

C

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The arrow is pointing to the right which means its greater than, and the circle is open so it doesn't include 4

HELPPPPPPPPPPPP MEHHHHHHHHHHHHHHHHHHHHHHHHH PLZZZZZZZZZZZZZZZZ GRADES GO OUT TOMMORROW AND I NEED THIS SO I CAN GET MY GRADE UP FROM A D+ PLZZZZZZZZ MY PARENTS WILL MURDER ME

Answers

Answer:

Call child abuse

Step-by-step explanation:

so you dont die kid

Answer:

2,3

4,3

3,3

4,5

5,4

6,7

8,8

8,9

This is an angle relationship problem

Answers

Answer:

7

Step-by-step explanation:

8c-5+6c-3=90

14c=90+5+3

14c=98

c=7

find the measure of angle b (imagine below)

Answers

Answer:97 °

Step-by-step explanation:

83° & b° are a supplementary angle, meaning that they equal 180°. So:

83 + b = 180

b = 97°

Write the equation of the line that passes through (5.-9) and (2.5).

Answers

Answer:

y = -14/3x + 43/3

Step-by-step explanation:

y2 - y1 / x2 - x1

5 - (-9) / 2 - 5

14 / -3

- 14/3

y = -14/3x + b

5 = -14/3(2) + b

5 = -28/3 + b

43/3 = b

y = -14/3x + 43/3

Harrison is having a tub of yoghurt for a snack. The tub weighs 30g and holds 120ml, so he says that his snack (the tub and yoghurt together ) weighs 150g. Can you please explain why his mistake is mistaken please?

Answers

Step-by-step explanation:

Given

Tub weighs 30 g and can hold 120 ml yogurt

It is not right to simply write the ml to gm unless it is case of water

mass is given by product of volume with density

So, density of yogurt is different than water. It is not appropriate to write 120 ml to 120 gm

Thus, the claim of Harrison is wrong that his snack weighs 150 gm.

A right triangle has a hypotenuse of 15 cm. What are possible lengths for the two legs of the
triangle? Explain your reasoning.

Answers

Answer:5 and 3

Step-by-step explanation:

you can multiply 5x3 to get 15

Given f(x) = 1/3(4 – x)^2 ,
what is the value of f(16)?

Answers

Answer:

48

Step-by-step explanation:

Plug in 16 to the function:

f(16)=1/3(4-16)^2

=1/3(-12)^2

=144(1/3)

=48

If y=x+2 then what is the slope and the y intercept?

Answers

Answer:

y-intercept is (0, 2) and the slope is 1

Write the square roots of 49 i in ascending order of the angle.

Answers

Answer:

The square roots of 49·i in ascending order are;

1) -7·(cos(45°) + i·sin(45°))

2) 7·(cos(45°) + i·sin(45°))

Step-by-step explanation:

The square root of complex numbers 49·i is found as follows;

x + y·i = r·(cosθ + i·sinθ)

Where;

r = √(x² + y²)

θ = arctan(y/x)

Therefore;

49·i = 0 + 49·i

Therefore, we have;

r = √(0² + 49²) = 49

θ = arctan(49/0) → 90°

Therefore, we have;

49·i = 49·(cos(90°) + i·sin(90°)

By De Moivre's formula, we have;

[tex]r \cdot (cos(\theta) + i \cdot sin(\theta) )^{\dfrac{1}{2}} = \pm \sqrt{r} \cdot \left (cos\left (\dfrac{\theta}{2} \right ) + i \cdot sin\left (\dfrac{\theta}{2} \right ) \right )[/tex]

Therefore;

√(49·i) = √(49·(cos(90°) + i·sin(90°)) = ± √49·(cos(90°/2) + i·sin(90°/2))

∴ √(49·i) = ± √49·(cos(90°/2) + i·sin(90°/2)) = ± 7·(cos(45°) + i·sin(45°))

√(49·i) = ± 7·(cos(45°) + i·sin(45°))

The square roots of 49·i in ascending order are;

√(49·i) = - 7·(cos(45°) + i·sin(45°))  and  7·(cos(45°) + i·sin(45°))

I need help with this ASAP. Can you tell me what goes in what box.​

Answers

Answer:

answers

Step-by-step explanation:

2 and 3rd

A restaurant sells 96 breakfast meals a day. If
75% of the breakfast meals are pancakes, how
many orders of pancakes does the restaurant
sell each day?

Answers

The answer is 72 pancakes. You would do 96 divided by 0.75

Answer:

72 pancakes

Step-by-step explanation:

The question basically asks you to:

Find 75% of 96

We can do this, by competing:

[tex]\frac{75}{100}[/tex] x 96 = [tex]\frac{3}{4}[/tex] x 96 = 3 x 24 = 72

Hope this helps.

What is the area of a rectangle that is 1 1 4 1 4 1 ​ 1, start fraction, 1, divided by, 4, end fraction meters long and 3 4 4 3 ​ start fraction, 3, divided by, 4, end fraction of a meter wide?

Answers

Answer:

4 11/16 m²

Step-by-step explanation:

The formula for the area of a rectangle = Length × Width

From the question:

Length = 1 1/4 m

Width = 3 3/4m

Area of the rectangle =

1 1/4 m × 3 3/4 m

= 5/4 m × 15/4 m

= 75/16 m²

= 4 11/16 m²

Area of the rectangle = 4 11/16 m²

PLEASE HELP ME

A student bought 24 pencils for every 16 markers. The number of pencils bought is directly proportional to the number of markers.
What is the constant of proportionality that relates the number of pencils to the number of markers?
5/3
2/3
3/2
3/5

Answers

I think that it would be 3/2 because you are simplifying the fractions 24/16.

Write the number in 2 equivalent forms as a fraction, decimal, or percent.
9/9
What is the equivalent decimal?

Answers

Answer:

fraction- 9/9=1

decimal- 1.0

percent- 100%

Step-by-step explanation:

1. If a basketball player makes 9 baskets in 12 tries, what is her ratio of baskets to tries, in lowest terms?

2. At the next game, the player has the same ratio of baskets to tries. If she tries 20 times, how many baskets should she make?

3. At the third game, she still has the same ratio of baskets to tries, This time she makes 12 baskets. How many times did she probably try?

Answers

Answer:

1. 3:4

Step-by-step explanation:

The ratio of baskets to tries is 3/4, 15 basket was made in 20 tries and 12 basket in 16 tries

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

1) . If a basketball player makes 9 baskets in 12 tries, hence:

Ratio of baskets to tries = 9/12 = 3/4

2) For 20 tries:

Number of basket = (3/4) * 20 = 15

3) For 12 basket:

Number of tries = 12 / (3/4) = 16

The ratio of baskets to tries is 3/4, 15 basket was made in 20 tries and 12 basket in 16 tries

Find out more on equation at: https://brainly.com/question/2972832

Mrs. Valdez created a scatter plot that showed the number of days a student was absent compared to the student's grade average in class.

Answers

Answer:

I believe it's the last one... "The association is linear based on the overall pattern"

Graph the equations to solve the system.
y = 2x - 6
y = -x-3
Click on the correct answer.
no solution: 0
solutions, all
numbers on the line
one solution: {0,-3)
one solution: (1.-4)

Answers

Answer:

one solution: (1.-4)

Step-by-step explanation:

y = 2x - 6...... (1)

y = -x-3......(2)

Plug y = -x-3 in equation (1)

2x - 6 = - x - 3

2x + x = 6 - 3

3x = 3

x = 3/3

x = 1

Plug x = 1 in equation (2)

y = - 1 - 3

y = - 4

(x, y) = (1, - 4)

The museum decided to showcase an amazing collection of glass figurines in 9 different rooms. The director of the exhibit plans to place the same number of figurines in the each room. What fraction of the collection will appear in 7 of the rooms?

Answers

Let there are x glass figurinesin room. as museum decided to showcase in total 9 different room as total number of glass figurines are:

[tex]9 \times x = 9x[/tex]

Determine the number of glass figurines in 7 rooms.

[tex]7 \times x = 7x[/tex]

The total collections is of 9x glass figurines.

In 7 rooms the collections appear is 7x.

Determine the fraction of collection that will appear in 7 rooms.

[tex] \frac{7x}{9x} = \frac{7}{9} [/tex]

So, the answer is 7/9.

Taking As x

_________

9 different room as total number of glass figurines are:

[tex]9 \times x = 9x[/tex]

The number of glass figurines in 7 rooms

[tex]7 \times x = 7x[/tex]

_________________

Total Collection Of 9 glasses figurines= 9x

7 room collection = 7x

_________________

Fraction of collection of 7 rooms by 9 glasses figurines

[tex] \huge \frac{7x}{9x} \\ \\ \\ \\ \huge = \frac{7}{9} [/tex]

So the fraction is [tex] \frac{7}{9}[/tex]

Hope This Helps You ❤️

for brainiest:):):):):):):):)

Answers

Answer:

Step-by-step explanation:

original price = 20

A small tree was planted at a height of 5 feet. The tree has been planted for 16 months, and is now 61 feet tall. Which equation could
be used to find x, the average number of feet the tree grew each month?
A. 5x + 16 = 61

B.16x + 5 = 61
C. 61x + 5 = 16
D. 16x + 61 = 5

Answers

Answer:

B

Step-by-step explanation:

What is the common ratio of the sequence?

-2, 6, -18, 54

Answers

Answer:

The common ratio of the sequence is -3

Step-by-step explanation:

The reason why the answer is -3 because every single number is multiplied by -3. If you need an explanation on how I found it, here it is:

To determine the common ratio by dividing each number in the sequence from the number preceding it. If the same number is not multiplied to each number in the series, then there is no common ratio.

Diego is selling raffle tickets for $1.75 per ticket.



Complete the table to show how much money he would earn if he sold each number of tickets.

Answers

Answer:

1.75(x)

Step-by-step explanation:

you can make an algebraic expression to make this simpler. if x = the number of tickets. then, you want to create the expression. it will be ....    1.75(x).

you plug whatever number you need for the table in as x. for example, if you want to see how much money diego would make for 6 tickets you write   1.75*6

Find the value of y,
96
66

Answers

Answer:

the answer is y=48

Step-by-step explanation:

you divide the arc by 2 if it's an inscribed angle

Answer: 48

Step-by-step explanation: 96/2

Your salary is $105,000 per year.

6. What is your gross monthly income?

Answers

Answer:

You gross monthly income is $8,750

Step-by-step explanation:

All you have to do is divide 105,000 by 12 months.

105,000 / 12 = 8,750

So, the answer is 8,750 dollars.

Hope this helps! :)

Erik states that the two cones below have the same volume because of Cavalieri’s principle. 2 cones are shown. The first cone has a radius of r, a slant length of c, and a height of b. The second cone has a radius of r, a height of a, and a slant length of b. Is Erik’s statement correct? Why or why not? Yes, the solids are both cones and appear to have the same volumes. Yes, the area of the bases and the heights of the cones are the same, so the volumes are equal. No, the heights of the cones are not the same, so Cavalieri’s principle does not apply.

Answers

Answer:

D. No, the heights of the cones are not the same, so Cavalieri’s principle does not apply.

Step-by-step explanation:

Correct on Edge.

Answer:

The person above me is correct but the option is C.

The two lines graphed on the coordinate grid each represent an
equation.
7.
6
5
4
2
6514
2
1
3
-
Which ordered pair represents a solution to both equations?
A.
(-4, 3)
B. (-3,-4)
C. (-4,-3)
D. (4, -3)
Need

Answers

9514 1404 393

Answer:

  C.  (-4, -3)

Step-by-step explanation:

The point where the lines cross is the solution to both equations. That point is in the third quadrant, where both coordinate values are negative.

The x-coordinate of the point is listed first, so the solution is ...

  (x, y) = (-4, -3)

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