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
liberstina [14]
3 years ago
5

Find the area of quadrilateral ABCD

Mathematics
1 answer:
andreev551 [17]3 years ago
3 0

Answer:

<em>A ≈ 28.5</em>

Step-by-step explanation:

a, b, c

P = a + b + c

Semiperimeter s = \frac{a+b+c}{2}

A = \sqrt{s(s-a)(s-b)(s-c)}

~~~~~~~~~~~~~~~

P_{ABC} = 4.3 + 2.89 + 6.81 = 14

s = 14 ÷ 2 = 7

A_{ABC} = \sqrt{7(7-4.3)(7-2.89)(7-6.81)} = √14.75901 ≈ 3.84

P_{BCD} = 8.59 + 7.58 + 6.81 = 22.98

s = 22.98 ÷ 2 = 11.49

A_{BCD} = \sqrt{11.49(11.49-8.59)(11.49-7.58)(11.49-6.81)} = √609.7343148 ≈ 24.6928

A_{ABCD} = 3.84 + 24.6928 ≈ <em>28.5</em>

You might be interested in
Hcf or LCM
pogonyaev

Answer:

LCM and every 36 days

Step-by-step explanation:

7 0
2 years ago
Evaluate each expression ​
choli [55]

Answer:

below

Step-by-step explanation:

  • c = 8 and  d = -3

c^{2} + d^{3} \\8^{2} + (-3)^{3} \\64 + (-27) \\64 - 27 \\37

  • r = -3  and   s = -4

( r -  s)^{3} + r^{2}\\(-3 -(-4))^{2} + (-3)^{2} \\(-3+4)^{3} + 9+ \\1^{3} + 9\\1 + 9 \\10

6 0
3 years ago
I really need help!Please help me!
solniwko [45]

Answer:

Photomath

Step-by-step explanation:

It looks like someone else is answering this for me so I'll just give ya a nudge. In the future as long as you can put it into an equation Photo math helped me a lot in Middle and Highschool.

5 0
3 years ago
the book fair had a sale where 6 book were $20.46 if you wanted to buy 7 books ,how much money would you need ?
Rina8888 [55]

Answer:

$23.87

Step-by-step explanation:

Start by finding out how much one book costs-

$20.46/6=3.41

Then find out how much seven books cost- 3.41 (7)=$23.87

4 0
3 years ago
Read 2 more answers
What’s the measure of X in this short answers are fine
miv72 [106K]

Answer:

28 = x

Step-by-step explanation:

62 =  angle BAC  since they are vertical angles

angle ABC is a right angle since KL is perpendicular to FG

Adding the angles in triangle ABC

BAC + ABC + BCA = 180

62 + 90 + BCA = 180

152 + BCA = 180

BCA = 180-152

BCA = 28

BCA = x since they are vertical angles

28 = x

3 0
3 years ago
Other questions:
  • Simplify. -2.2 - 3.1
    5·2 answers
  • The area of a rectangle is 30 sq meters. The perimeter is 26 feet. What are the dimensions of the rectangle?
    11·1 answer
  • Help me the questions and answer choices are in the picture
    8·1 answer
  • Please help 3/5 + 5/10
    15·2 answers
  • Amber can paint a room in 20 hours. Christy can paint the same room in 16 hours. How long does it take for both amber and christ
    6·1 answer
  • A number raised to the second power. what is it called??
    5·2 answers
  • Gabrielle is 10 years younger than Mikhail. The sum of their ages is 40. What is Mikhail's age
    9·2 answers
  • Without using a calculator evaluate 2^3/2^-3.​
    11·1 answer
  • PUT THE TERM "COMPROMISE" IN A SENTENCE OF
    15·1 answer
  • Another object has a density of 18 kg/m3 and a mass of 360kg what is the volume of the object
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!