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
Tamiku [17]
3 years ago
12

Find the perimeter of quadrilateral ABCD. Round to the nearest tenth.

Mathematics
1 answer:
Olegator [25]3 years ago
4 0

Answer:

14.6 units

Step-by-step explanation:

AB = \sqrt{(1-3)^2+(3-5)^2}

AB =\sqrt{8}

BC = \sqrt{(3-1)^2+(-1-3)^2}=\sqrt{20}

CD = \sqrt{(5-3)^2+(3-(-1))} = \sqrt{20}

DA = \sqrt{(5-3)^2+(3-5)^2} = \sqrt{8}

Primeter = \sqrt{8} + \sqrt{20} + \sqrt{20} +\sqrt{8} = 14.6

You might be interested in
What is the inequaliity of 3<-5n+2n and how do you put it on a number line
timama [110]
The inequality would be the negative factor, because -5n+2n is 3n. You would write it on a number line like this..... 
Sry, i was just making an educated guess.... RIP....

6 0
4 years ago
Read 2 more answers
A 34-foot pole casts a 30-foot shadow. At the same time, a nearby tree casts a 24-foot shadow. How tall is the tree?
artcher [175]

Answer:

27.2 ft

Step-by-step explanation:

Let's set up a ratio that represents the problem:

Object's Height (ft) : Shadow (ft)

Substitute with the dimensions of the 34 foot pole and its 30 foot shadow.

34 : 30

Find the unit rate:

The unit rate is when one number in a ratio is 1.

Let's make the Shadow equal to one by dividing by 30 on both sides.

Object's Height (ft) : Shadow (ft)

34 : 30

/30  /30

1.13 : 1

Now, let's multiply by 24 on both sides to find the height of the tree.

Multiply:

Object's Height (ft) : Shadow (ft)

1.13 : 1

x24  x24

27.2 : 24

Therefore, the tree is 27.2 feet tall.

7 0
3 years ago
Factor 3x^2y^2 − 2xy^2 − 8y^2. Show your work.
docker41 [41]
<span>3x^2y^2 − 2xy^2 − 8y^2 =
y^2 (3x^2 - 2x - 8) =

factoring with leading coefficient:

for ax2+bx+c find two numbers n,m, that m*n = a*c and m+n = b
</span><span><span>
3x^2 - 2x - 8
a=3, b=-2, c=-8
</span>a*c = 3*(-8) = -24
-24=(-6)*4 and -6+4=-2, so m=-6 and n=4

replace bx with mx + nx and factor by grouping
</span><span>
3x^2 - 2x - 8 = </span>3x^2 -6x + 4x -8 = 3x(x-2) + 4(x-2) = (3x+4)(x-2)

answer:
<span>3x^2y^2 − 2xy^2 − 8y^2 = y^2(3x+4)(x-2)</span>

7 0
3 years ago
If cos 0=2/3, what are the values of sin 0 and tan 0?
morpeh [17]

Answer:

Below

Step-by-step explanation:

● cos O = 2/3

We khow that:

● cos^2(O) + sin^2(O) =1

So : sin^2 (O)= 1-cos^2(O)

● sin^2(O) = 1 -(2/3)^2 = 1-4/9 = 9/9-4/9 = 5/9

● sin O = √(5)/3 or sin O = -√(5)/3

So we deduce that tan O will have two values since we don't khow the size of O.

■■■■■■■■■■■■■■■■■■■■■■■■■

●Tan (O) = sin(O)/cos(O)

● tan (O) = (√(5)/3)÷(2/3) or tan(O) = (-√(5)/3)÷(2/3)

● tan (O) = √(5)/2 or tan(O) = -√(5)/2

4 0
3 years ago
William and Emma go into a burger shop with a total of $40.00 to spend. Burgers cost $4.50 each and soft drinks cost $1.00 each.
Ainat [17]

Answer:

12 items in total

Step-by-step explanation:

40-4.5*8=4
leaving 4 dollars to spend on 4 drinks

5 0
3 years ago
Other questions:
  • An urn contains 3 red and 7 black balls. players a and b withdraw balls from the urn consecutively until a red ball is selected.
    10·1 answer
  • kendall brought a vase that was priced at 40$. addition, she had to pay 3% sales tax. How much did she pay for the vase
    5·1 answer
  • 1 2/3 ÷x=2 7/9 solve for x, please
    8·1 answer
  • In the diagram below, ABC - DEC. What is the value of x?<br> A 5<br> B. 3<br> C. 6<br> D. 4<br>​
    5·1 answer
  • The atomic mass of a chemical element is the number of protons + number of neutrons in each atom of that element—electrons are i
    12·1 answer
  • Find the slope of the line that passes through (-2,1) (7,1)​
    9·2 answers
  • The restaurant ordered small pictures and large pictures to decorate the restaurant. 6 times as
    5·2 answers
  • A triangle has sides with lengths of 2 centimeters, 4 centimeters, and 5 centimeters. Is it a right triangle?
    11·2 answers
  • 100
    11·1 answer
  • PLEASE HELP!! The area of a square is 16 square units. Since 4^2 = 16 and (-4)^2 = 16, both 4 and -4 are square roots for 16. Ex
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!