For triangle DEF, the length of side e and the measures of angles D and F are known. What method should be used to start solving triangle DEF?
A.law of sines
B.both laws can be used
C.neither law can be used
D.law of cosines

Answers

Answer 1

Answer: D. Law Of Cosines

Step-by-step explanation: A law in trigonometry: the square of a side of a plane triangle equals the sum of the squares of the remaining sides minus twice the product of those sides and the cosine of the angle between them.

Note: Answer is confirmed by Buzz/Acceleration Education.

All My Other Answers:

https://brainly.com/app/profile/13253466/answers

Answer 2

The sum of the interior angle of the triangle is 180 degrees. Then by the sine rule, angle E can be determined. Then the correct option is A.

What is trigonometry?

Trigonometry deals with the relationship between the sides and angles of a right-angle triangle.

For triangle DEF, the length of side e and the measures of angles D and F are known.

We know that the sum of the interior angle of the triangle is 180 degrees. Then the angle E can be determined.

Hence the sine rule is easy to apply.

More about the trigonometry link is given below.

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Related Questions

The rabbit population in a certain area is 200% of last year’s population. There are 1,100 rabbits this year. How many were there last year?

Answers

Answer:

1100/2 = 550

Step-by-step explanation:

A percent increase of 200% is equal to multiplying by 2. Therefore, we can divide by two to reverse the increase.

Find the requested unknown side of the following triangle

Answers

*Answer* :
5.75
Explanation:
Let the unknown side = X
Cos() = adj/hyp
Cos(44)= X/8
X= 5.75

The length of the side : 5.75

What is an angle?

In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. The two rays are called the sides of an angle, and the common endpoint is called the vertex.

We know that, a ray is a line that continues on forever inn one direction with a point at it's start.

here, we have,

from the given figure, we get,

Explanation:

Let the unknown side = X

Cos() = adj/hyp

Cos(44)= X/8

X= 5.75

hence, The length of the side : 5.75.

To learn more on angle click:

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A truck driver drove 150 miles in 3 hours. At that rate, how long will it take the driver to travel 500 miles?

F. 1.1 hours
G. 10 hours
H. 3 1/3 hours
J. 5 hours

Answers

Answer 10 hours

Explain

Can somebody help me out my grade are bad

Answers

Answer:

There’s only 1 horizontal line of symmetry

Step-by-step explanation:

Answer:

there is only 1 line of symmetry that is horizontal

2 - x = x - 8

ayudaaa
porfavor

Answers

Answer:

x=5

Step-by-step explanation:

2 - x = x - 8

- x = x - 8 - 2 (subtract 2 from both sides)

- x = x - 10 (combine like terms)

- 2x = - 10 (subtract x from both sides)

x = 5 (divide each side by -2).

Answer:

x = 5

Step-by-step explanation:

2 - x = x - 8

- x + 2 = x - 8

- x + 2 - 2 = x - 8 - 2

- x = x - 10

- x - x = x - x - 10

- 2x = - 10

- 2x ÷ - 2 = - 10 ÷ - 2

x = 5

find the value of X need help soonnn

Answers

E
12^2 + 8^2 = C^2
144 + 64 = C^2
208= C^2
Then,
208 = 2 × 2 × 2 × 2 × 13.
√208 = √( 2 × 2 × 2 × 2 × 13)
√208 = √(4 × 4 × 13)
√208 = 4√13.

Heidi used 5 and a 1/2 liters of water to fill water bottles. Each water bottle holds 1/4 of a liter of water. How many water bottles were filled if all the water was used?

Enter your answer as a whole number.

Answers

22 bottles!! hope this helps!!

IF YOU ANSWER THESE TWO I'LL GIVE BRAINLIEST (if you only answer one no brainliest)

Answers

The clock one is 20 because there are 4 weeks past and you would just plug that into the equation. The catering one is 118 , also plugging into the equation given.

Answer:

The first question provided (question 11)

The answer is $118.00

The second question provided (question 12)

The answer is 20 seconds

Step-by-step explanation:

The first question provided (question 11)

The equation 5a + 3c is provided to determine the cost of a catering event, where a is the number of adults and c is the number of children.

It is stated that there are 17 adults and 11 children attending an event.

You can substitute in the 17 adults in place of a and the 11 children in place of c.

This will leave you with 5(17) + 3(11).

If you simplify you will get 85 + 33, which is equal to 118

Therefore, the answer is $118.00.

The second question provided (question 12)

The equation s = 5w is provided to determine how far behind a clock is after a certain amount of time, where s is seconds behind and w is the number of weeks sice the clock was last set.

You are given the clock was set 4 weeks ago.

You can subsitute the 4 weeks into the equation in place of variable w.

This leaves you with s = 5(4).

Simplifying this further, you will get s = 20.

Therefore, the clock is 20 seconds behind.

Find y!!
(Secant tangent angles )
Helpppp

Answers

Answer:

Probably 95*

Step-by-step explanation:

If you look at the lines, the angle with Y looks equal to the bottom 95* angle.

what is the soultons from least to greatest (x+6)(-x+1)=0

Answers

Answer x = -6,1. hope that helped have a good day

its 34.51 trust me
....
.....

Answers

Ok??????????????????????????

How far will a ball roll if it travels 12m/s
for 3 seconds?

Answers

If it takes a ball to roll 12 meters per sec, and asks how far it will roll for 3 seconds you would multiply 12 and 3 getting 36.

The ball will roll 36 meters for 3 seconds
The ball will travel 36 meters because 12 times 3 = 36

Can you please help me?

Answers

Answer:

59 + 163 + x = 360

(cus a circle is 360 degrees ya feel me boi?)

x = 360 - 59 - 163

x= 138

Don't do drugs kids. Stay in school. Chase morality.

Step-by-step explanation:

Answer:

1. +17°

2.x=138°

Step-by-step explanation:

1. (Counted on my fingers lol -8 to 9)

2. 163+53=222

360-222=138

given map is the plan of a house 16 cm long and 12cm broad if the actual length is 32 feet find the actual breadth of the house​

Answers

Answer:

look at the picture i sent......

What is the value of p?

Answers

Answer:

p=25

Step-by-step explanation:

Both angles that contain p are equal to eachother. SO we can set 3p equal to p+50. 3p=p+50

After doing this we get 25° for p.

find the length of the third side, If necessary round to the nearest tenth

Answers

Step-by-step explanation:

[tex] {12}^{2} + {9}^{2} = {a}^{2} \\ 144 + 81 = {a}^{2} \\ {a}^{2} = 225 \\ a = 15[/tex]

Answer:

a = 15

a = - 15

Step-by-step explanation:

Exponentiation

12² + 9² = a²

144 + 9² = a²

so a equal to 15, -15

f(x) = -x^2
Find f(-6)

Answers

Answer:

36

Step-by-step explanation:

f(x)=x^2

f(-6)=-6^2

negative number raised to even number gives positive result

=36

Find the value of x.l

Answers

Answer:

The value of x is 28°

Step-by-step explanation:

2x + 1 and 33° together forms 90° angle.

So, we need to find the angle at the 2x + 1.

--> 90° - 33°

= 57°

So, 2x + 1 gives 57°.

So, to find x :-

2x + 1 = 57°

2x = 57 - 1

2x = 56

x = [tex]\frac{56}{2}[/tex]

x = 28

Simplify the rational expression. State any excluded values. PLEASE HELP

Answers

Answer:

D

Step-by-step explanation:

I solved this by hand;

Which of the following poems have to rhyme?

Sonnet
Limerick
Haiku
Cinquain

Answers

Limerick pretty sure

Answer:

a

Step-by-step explanation:

i’ve asked so many times plz hell

Answers

Step-by-step explanation:

Yes, Junior

5/(5+9)

5/14

0.36

Yes, Senior

9/(5+9)

9/14

0.64

No, Junior

4/(4+7)

4/11

0.36

No, Senior

7/(7+4)

7/11

0.64

A capacitor has plates of area
1.64 x 10-3 m2. To create a
capacitance of 2.38 x 10-9 F, how
far apart should the plates be?

Answers

Answer:

6.1*10^-6

Step-by-step explanation:

Acellus

please help me with this!!!

Answers

1) 4/5 + 4/5 = 1 3/5
2) 4/5 + 2/5 + 2/5 = 1 3/5

Answer-

4/5 + 4/5

4/5 + 1/5 + 3/5

how to find area of a square room if it's length is 5cm​

Answers

Answer:

150 cm²

Step-by-step explanation:

Since the room is square, assuming that it is a cube, the area will be 6s², where s is the side length.

Given a side length of 5cm, the area is

6(5)² = 6cm × 25cm = 150cm²

I NEED THE ANSWER IN THE NEXT MINUTE

Answers

Step-by-step explanation:

the area of a circle: pi r^2

area of a rectangle: L x W

so youd write and solve 12 x 12 - pi (12/2)^2

2 ​2 ​​ ⋅(45÷9) - 3 thx

Answers

Answer:

(45÷9) - 3

5-3

=2 is a required answer

hope it is helpful to you

what is the average rate of change of the population between 1930 and 1950? show your reasoning?

Answers

Answer:

The average rate of change is: 0.25

Step-by-step explanation:

Given

See attachment for graph

Required

The average rate of change between 1930 and 1950

Average rate of change (m) is calculated as:

[tex]m = \frac{f(b) - f(a)}{b - a}[/tex]

In this case,

[tex][a,b] = [1930,1950][/tex]

So, we have:

[tex]m = \frac{f(1950) - f(1930)}{1950 - 1930}[/tex]

[tex]m = \frac{f(1950) - f(1930)}{20}[/tex]

From the attached graph;

[tex]f(1950) = 45[/tex]

[tex]f(1930) = 40[/tex]

So, we have:

[tex]m = \frac{45- 40}{20}[/tex]

[tex]m = \frac{5}{20}[/tex]

[tex]m = 0.25[/tex]

what is the lcm of 5,3 and 5​

Answers

Answer:

the LCM of those would be 15.

Which of the following is true of the measures of central tendency when looking at outliers?
The median is unaffected by an outlier.
The mean is unaffected by an outlier.
The range is unaffected by an outlier.
The interquartile range is unaffected by an outlier.

Answers

Answer:

Step-by-step explanation:

An outlier does not affect measures of central tendency. ... An outlier is always the highest or lowest value in a data set.

it says SELECT ALL THAT APPLY.

so there will be more then one Answer

so D AND C

HOPES THIS HELPS

The mean is considered as one of the measures of central tendencies in statistics. Then the correct option is B.

What are statistics?

Statistics is the study of collection, analysis, interpretation, and presentation of data or to discipline to collect, and summarise the data.

Mean is simply defined as the average of the given set of numbers. The mean is considered as one of the measures of central tendencies in statistics.

Then the correct option is B.

More about the statistics link is given below.

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I need help plz this is hard

Answers

Answer:

(1,3)(5,-5)(3,-1)

Step-by-step explanation:

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