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

Answer 10 hours

Explain

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

Answer:

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

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]

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.

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

Answer:

a

Step-by-step explanation:

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

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

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.

Answer:

the LCM of those would be 15.

Answer-

4/5 + 4/5

4/5 + 1/5 + 3/5

Answer:

There’s only 1 horizontal line of symmetry

Step-by-step explanation:

Answer:

there is only 1 line of symmetry that is horizontal

The length of the side : 5.75

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:

brainly.com/question/28451077

#SPJ2

Answer:

D

Step-by-step explanation:

I solved this by hand;

Answer:

Probably 95*

Step-by-step explanation:

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

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.

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.

https://brainly.com/question/10951564

#SPJ2

Answer:

(45÷9) - 3

5-3

=2 is a required answer

hope it is helpful to you

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

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

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.

Answer:

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

Step-by-step explanation:

Answer:

6.1*10^-6

Step-by-step explanation:

Acellus

Answer:

36

Step-by-step explanation:

f(x)=x^2

f(-6)=-6^2

negative number raised to even number gives positive result

=36

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