What is the perimeter P of △DEF to the nearest whole number?

What Is The Perimeter P Of DEF To The Nearest Whole Number?

Answers

Answer 1

Answer:

perimeter of ΔDEF  ≈ 32

Step-by-step explanation:

To find the perimeter of the triangle, we will follow the steps below:

First, we will find the length of the side of the triangle DE and FF

To find the length DE, we will use the sine rule

angle E  = 49 degrees

e= DF = 10

angle F = 42 degrees

f= DE =?

we can now insert the values into the formula

=  

cross-multiply

f sin 49° = 10 sin 42°

Divide both-side by sin 49°

f = 10 sin 42° / sin 49°

f≈8.866

which implies DE ≈8.866

We will now proceed to find side EF

To do that we need to find angle D

angle D + angle E + angle F = 180°  (sum of interior angle)

angle D + 49° + 42° = 180°

angle D + 91° = 180°

angle D= 180° - 91°

angle D = 89°

Using the sine rule to find the side EF

angle E = 49 degrees

e= DF = 10

ange D = 89 degrees

d= EF = ?

we can now proceed to insert the values into the formula

=  

cross-multiply

d sin 49° = 10 sin 89°

divide both-side of the equation by sin 49°

d= 10 sin 89°/sin 49°

d≈13.248

This implies that length EF = 13.248

perimeter of ΔDEF = length DE + length EF + length DF

                                  =13.248   +  8.866  + 10

                                   =32.144

                                    ≈ 32 to the nearest whole number

perimeter of ΔDEF  ≈ 32


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Answer:

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What is the equation of the line that is perpendicular to y=-3x+1 that passes through the point (9,0)?
Slope Intercept Form
y=mx + b
Оy=4x-3
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Answers

Answer:

Step-by-step explanation:

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Answer:

I at the point where I am about to scream so plzzzzzzz stop asking me and it is just not you

Answer:

1/3, 2/3, 1/2

Step-by-step explanation:

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2/3, 0.66, 66%

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Answers

Answer:

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Step-by-step explanation:

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Which equation is in standard form?

a) 3x - 4y - 2 = 0

b) y = -2x - 3

c) 3x + 7y = 4

d) y = 2

Answers

Answer:

c

Step-by-step explanation:

The answer of this question is c

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Answers

Answer:

10-k

Step-by-step explanation:

Pls mark BRAINLIEST

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what is (-3.7)+(-4.1)​

Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

Un millón cuarenta y cinco mil cuatrocientos veinte - 1'045.420

Step-by-step explanation:

A continuación, presentamos como se escribe cada componente:

Un millón - 1'000.000

Cuarenta mil - 40.000

Cinco mil - 5.000

Cuatrocientos - 400

Veinte - 20

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How many buckets have more than one half gallon of water?

Answers

Answer:

6 buckets

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

You don't count the ones with 1/2 a gallon

Drag each term to the correct location on the expression. Each term can be used more than once, but not all terms will be used.​

Answers

Answer:

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Step-by-step explanation:

Miranda bought 8 books about animals, 3 books about outer space, and 4 books about trains. Each book cost $5. How much did Miranda spend on the books?
PLEASE HELPPPPP!!!!

Answers

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Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

is the answer good luck on the test

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Answers

Answer:

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Step-by-step explanation:

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8x + 20 = 180

8x = 180 - 20

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Answer:

X=20

Step-by-step explanation:

When you add 7x and the x+20, they total to 180 degrees to form a flat angle so to solves this use equation 7x+x+20=180 to get x=20.

To check: input the 20 into both equations and see if they add up to 180 degrees

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20+20= 40

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Answers

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

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Snacks
coffee
cola
orange
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popcorn
£1.25
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95p
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Buy one drink and two different snacks for £3.99
f1.75
£1.15
f1.60
85p
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Work out the most money that Laura can save by using the Special Offer.

Answers

Answer:

I think 89.1

Step-by-step explanation:

I Dont know.

Nagmamadali Lang

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From a train station, one train heads north, and another heads east. Some time later, the northbound train has traveled 32 kilometers, and the eastbound train has traveled 24 kilometers. The two trains, measured in a straight line, are ____ kilometers apart.​

Answers

Answer:

40

Step-by-step explanation:

Remark

This is just an ordinary Pythagorean Problem.

a = 32

b = 24

c = ?

Distance

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63°
57°
53°
64°

Answers

Answer: 53°

Step-by-step explanation:

3x - 4 + 3x + 6 + 4x - 12 = 180

10x - 10 = 180

Add 10 to both sides

10x = 190

Divide both sides by 10

x = 19

3x - 4

3 (19) - 4 = 57 - 4

= 53

3x + 6

3 (19) + 6 = 57 + 6

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4x - 12

4 (19) - 12 = 76 - 12

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Answer:

63°

Step-by-step explanation:

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rectangular prism. The pool is 12 feet long,
10 feet wide, and 6 feet deep. What is the
volume of the pool?
A 360 ft
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Answers

Answer:

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Answers

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Step-by-step explanation:

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Answers

Answer:

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Answers

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Answers

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Answers

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Answers

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Step-by-step explanation:

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Answers

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Answers

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Answers

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Step-by-step explanation:

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Answer-

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Answers

Step-by-step explanation:

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