Given triangle abc with vertices A(2,-1), B(5,6), C(-1,4) as shown. Find the number of square units in the area of triangle abs in simplest form.

Answers

Answer 1

Answer:

The area of the triangle is 18 square units.

Step-by-step explanation:

First, we determine the lengths of segments AB, BC and AC by Pythagorean Theorem:

AB

[tex]AB = \sqrt{(5-2)^{2}+[6-(-1)]^{2}}[/tex]

[tex]AB \approx 7.616[/tex]

BC

[tex]BC = \sqrt{(-1-5)^{2}+(4-6)^{2}}[/tex]

[tex]BC \approx 6.325[/tex]

AC

[tex]AC = \sqrt{(-1-2)^{2}+[4-(-1)]^{2}}[/tex]

[tex]AC \approx 5.831[/tex]

Now we determine the area of the triangle by Heron's formula:

[tex]A = \sqrt{s\cdot (s-AB)\cdot (s-BC)\cdot (s-AC)}[/tex] (1)

[tex]s = \frac{AB+BC + AC}{2}[/tex] (2)

Where:

[tex]A[/tex] - Area of the triangle.

[tex]s[/tex] - Semiparameter.

If we know that [tex]AB \approx 7.616[/tex], [tex]BC \approx 6.325[/tex] and [tex]AC \approx 5.831[/tex], then the area of the triangle is:

[tex]s \approx 9.886[/tex]

[tex]A = 18[/tex]

The area of the triangle is 18 square units.


Related Questions

find the area of the parallelogram

Answers

Answer:

multiply the base by the height

Step-by-step explanation:

23x13

Answer:

299 feet

Step-by-step explanation:

Okay so the cut off triangle you can move to the right side to make it a perfect rectangle. Find tha area.

13 x 23 = 299 feet



Joseph has only nickels and quarters in his piggy bank. He has 62 coins total for a
combined value of $11.10. How many nickels does Joseph have?

Answers

9514 1404 393

Answer:

  22 nickels

Step-by-step explanation:

Let n represent the number of nickels in Joseph's piggy bank. Then the number of quarters is 62-n. The total value is ...

  0.05n + 0.25(62 -n) = 11.10

  -0.20n + 15.50 = 11.10 . . . simplify

  4.40 = 0.20n . . . . . . . . . . add 0.20n-11.10

  4.40/0.20 = n = 22

Joseph has 22 nickels in his piggy bank.

Mr. Garza's family is attending the local soccer game. He has 30 to spend on food and drinks . The cost of chips is $2 and the cost of a drink is $3 . Which of the following inequalities represents all possible combinations of c , and d, the number of drinks , that Mr. Garza can purchase?

Answers

Answer:

$6

Step-by-step explanation:

let x and y be the number of chip and pretzel bags respectively  : 4x%2B2y%3 C=20 : if x=1 then 4%281%29%2B2y%3C=20--->{{2y<=16}}}--->y%3C=8  : if x=3 then 4%283%29%2B2y%3C=20--->{{2y<=8}}}--->y%3C=4  : so chips 1 and pretzels 8  : chips 3 and pretzels 4.

The pages of a book are numbered consecutively, beginning with 1. The digit 7 is printed 25 times in numbering the pages. What is the largest number of pages the book can have?

Answers

Answer:7

Step-by-step explanation:

**PLEASE HELP ILL MARK BRAINLIEST** the table shows the values of y for different values of x. What are the rate of change and the initial value for y

Answers

D
you can also write it as y = - 3/2x + 3

Answer:

It's D. The initial value of y is 3 because 6,9 and 12 are 3 digits apart, and it always is Y over X

Sarah and three of her classmates entered a story they wrote into a contest at the mall. Their team won, and they received a cash prize.



Each person won $21.25, so how much was the entire prize?

Answers

Answer:

Step-by-step explanation:

4 × $21.25 = $85

Write an inequality that describes this graph help someone

Answers

Answer:

4 is greater than x

Step-by-step explanation:

Make t the subject of the formula.

Please help.

Answers

Answer:

[tex]t = \frac{2-3q}{q+4}[/tex]

Step-by-step explanation:

[tex]q = \frac{2-4t}{t+3}\\\\[/tex]

Cross multiply,

q(t+3) = 2 - 4t        

Use distributive property: a*(b + c) =(a*b) + (a*c)

qt + 3q = 2- 4t

qt + 4t + 3q = 2

  qt + 4t     = 2 - 3q

    t(q + 4)  = 2 -3q

               [tex]t = \frac{2-3q}{q+4}[/tex]

Such as 0.5, has a finite number of digits.
a. terminating decimal
b. repeating decimal ​

Answers

Answer: terminating decimal

Step-by-step explanation:    :)

What would x equal (rounded to the nearest tenth)

Answers

You know x = opposite
Hypothenuse = 26 cm
With opposite and hypothenuse, you use sine
sin(41) = 0.656059029
Sin(41) = x/26
x = 17.05753
Round to tenth
Solution: x = 17.1 cm

A bag contains 24 discs.
8 are red and 16 are blue.
One disc is taken out at random and replaced by two of the other colour.
Another disc is then taken out at random and replaced by two of the other colour.
Another disk is taken out at random
Work out the probability that all three discs are taken out red

Answers

Answer:

Step-by-step explanation:

8/24 are Red

Pick and return 2

So it will be 7/25

Again pick and return 2

Then it is 6/26

Now multiply the results

8/24 × 7/25 × 6/26 = 7/ 325

The probability that all three discs are taken out of red will be 7/ 325.

What is probability?

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Probability = Number of favourable outcomes / Number of sample

Given that a bag contains 24 discs. 8 are red and 16 are blue. One disc is taken out at random and replaced by two of the other colour. Another disc is then taken out at random and replaced by two of the other colour.

The probability will be calculated as,

Red = 8/24

Pick and return 2 it will be 7/25

Again pick and return 2 then it is 6/26

Now the overall probability will be,

P = 8/24 × 7/25 × 6/26 = 7/ 325

Therefore, the probability that all three discs are taken out of red will be 7/ 325.

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1 gram = ----- centigrams

Answers

Answer:

100 centigrams!!

Step-by-step explanation:

whats the area of this figure​

Answers

Answer:

208

Step-by-step explanation:

(14x9)+(10x7)+(3x4) = 208

What is 3,000 divided by 250?

Answers

Answer: 12 100% right

Step-by-step explanation:

The value of solution of 3,000 divided by 250 is,

⇒ 12

We have to given that;

⇒ 3,000 divided by 250

Now, WE can divide as;

⇒ 3,000 divided by 250

⇒ 3,000 / 250

⇒ 12

Thus, The value of solution of 3,000 divided by 250 is,

⇒ 12

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Students recorded the amount of liquid in fluid ounces each of them drank in one day. The box plot shows the summary of the results. Which statement best describes the data represented in the box plot?
Which statement best describes the data represented in the box plot?
Half the students drank from 78 to 114 fluid ounces.

The greatest number of students drank from 30 to 78 fluid ounces.

The data represent 78 student responses.

The mean number of fluid ounces that the students drank is 78.

Answers

Answer:

the data represent 78 students reponses

Answer:

the data represent 78 students reponses

Step-by-step explanation:


At the music store Katelyn bought 2 packs of
guitar strings and a music book. The book cost
$18.00. Her total purchase was $46.00. How
much is one pack of strings?

Answers

For one pack of guitar strings, it cost $14.00

Five whole numbers are written in order.


4


7


x


y


11

The mean and median of the five numbers are the same.


Work out the values of

x

and

y

.


(3 marks)

Answers

Answer:

The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.

The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115

Step-by-step explanation:

The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.

The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.

The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.

The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115

you deposit $50 in checks in your account with $100 cash amount, what is your total deposit? (answer in only numbers) $


I’ll give brainiest

Answers

Its 150 dollars because your adding 50 +100

plsss help i’ll give brainliest if you give a correct answer

Answers

Answer: x = 7

Explanation:

Subtract 8 from both sides to isolate x.

x + 8 = 15

x + 8 -8 = 15 - 8

x = 15 - 8

x = 7

Answer:

X=7

Step-by-step explanation:

have a good day /night

A triangle has two sides of length 7 and 4. What is the smallest possible whole-number length for the third sid

Answers

Answer:

3......

Step-by-step explanation:

in triangle sum of two sides must be equal to third side......

hope this will help u.....

Solve the inequality a+4/2>16

Answers

Answer:

a > 14

Step-by-step explanation:

I hope this helps!

The solution to the inequality expression a + 4/2 > 16 is a > 14

How to solve the inequality expression?

The inequality expression is given as:

a + 4/2 > 16

Divide 4 by 2

a + 2 > 16

Subtract 2 from both sides

a > 14

Hence, the solution to the inequality expression a + 4/2 > 16 is a > 14

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a school has 36 fish swamps 4/6 of them's are boys how much are girls

Answers

Answer:

12 fish are girls

Step-by-step explanation:

multiply 4/6 by 6 which would be 24/36. Then substract 24 from 36 and you get 12.

Answer:

12 are girls

Step-by-step explanation:

Reason that since 4/6 of them are boys then that means 2/6 are girls

then convert 2/6 to decimal form which is 0.3333....

then multiply that by 36 which gives us 12

you could also go the roundabout way and convert 4/6 to decimal form and take that value and multiply it by 36 which gives us 24 then subtract 24 from 36 which still gives us 12

hope this makes sense

have a great day luvs <3


Are there similarities with the musical instruments of South Asian and Middle East? Explain.​​

Answers

nThe Middle East has been an important source of musical instruments for other parts of the world. Bagpipes, guitar, lute, oboe, tambourine, viols, and most zithers have a Middle Eastern origin.

The similarity is that both of them place value on the use of instrumental music. The South Asian and the Middle East is known to have a lot of musical instruments when compared to other parts of the world.

What are the musical instruments from South Asia and Middle East?

The musical Instruments that can be seen in Hindustani classical music are known to be the sitar, sarod, tambura, and others.

The instruments that is said to be used in Karnatak classical music are known to be the vina, mrdangam, violin and others

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5m + 26 - 3p when m = 3 and p = 4

Answers

Answer: 15 + 26 - 12 if you were to simplify the expression

Step-by-step explanation:

Brainliest for correct answer
Make x the subject of the formula y = ax^2 + b

Answers

Step-by-step explanation:

y-ax^2=b

y- ax^2÷b

y-a÷b

x√y-a÷b

please show me a graph of the inequality statement f(x) is less than or equal to 2x squared + 4x

Answers

Answer:

Step-by-step explanation:

what is 9 2/7 simplified

Answers

Answer:

2 + (4/7)

Step-by-step explanation:

9 x 2/7 = 18/7 = 2 + (4/7)

Answer:

Exact Form:

65 /7

Decimal Form:

9. 285714

Mixed Number Form:

9  2/ 7

Step-by-step explanation:

Hope this helps:)

help please asap!!!!only the correct answet please​

Answers

Answer:

B

Step-by-step explanation:

please help asap i need to finish i will mark brainlest ily

Answers

Answer:

I think it would be 1/3 as 20+40=60 and 20 is 1/3 of what

Answer:

20\40= 0.5 is 1\2

8 baseball players share 18 apples

Answers

Answer:

each get 2 and 1/4 of an apple :) pls give brainliest

Step-by-step explanation:

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