find the length of EF in this Pythagorean theorem problem and show work please and thanks you
Answers
Answer:
I'm not sure if you can solve this with Pythagorean Theorem because as far as I know, you need sides not angle+side combination. Despite this, let's solve this one using sine law, cosine law or even tangent.
Step-by-step explanation:
[tex] \tan(61) = \frac{length \: of \: df}{24} \\ length \: of \: df = 24 \tan(61) \\ = 43.2971 \\ \\ \cos(19) = \frac{length \: of \: df}{length \: of \: ef} \\ length \: of \: ef \: = \frac{43.2971}{ \cos(19) } \\ = 45.7919[/tex]
Related Questions
Triangle J K L is shifted 2 units up and 3 units to the left to form triangle J prime K prime L prime.
Identify the translation from the pre-image, triangle JKL, to the image, triangle J'K'L'.
The pre-image moved horizontally
.
The pre-image moved horizontally
units.
The pre-image moved vertically
.
The pre-image moved vertically
units.
Answers
Answer:
1st one is, Left
2nd one is, 3
3rd one is, Up
4th one is, 2
Step-by-step explanation:
The pre-image moved horizontally
✔ left
.
The pre-image moved horizontally
✔ 3
units.
The pre-image moved vertically
✔ up
.
The pre-image moved vertically
✔ 2
units.
Left 3,
3rd one is up.
4th one is 2.
You're Welcome!
i will give anyone brainliest thats writes down the correct answer for rhis question Layla is using the model to solve a division problem.
An area model has 4 shaded parts and 2 unshaded parts. The shaded part is labeled two-thirds.
Which question would the model be most helpful in solving?
How many One-sixths are in 4?
How many One-sixths are in Two-thirds?
How many Two-thirdss are in 4?
How many Two-thirdss are in One-sixth?
Answers
Answer:
How many One-sixths are in Two-thirds?
Step-by-step explanation:
Answer: How many One-sixths are in Two-thirds?
Step-by-step explanation: please mark me as a brainly
Suppose you want to make a rectangle with perimeter 400. What dimensions give you
the maximum area?
I
Answers
Answer:
100X100
Step-by-step explanation:
sorry if i get it wrong, hope this helps!
A phone company offers two monthly plans. Plan A cost $23 plus an aditional $0.10 for each minute of calls. plan B cost $19 plus an aditional $0.14 for each minute of calls
Answers
Answer:
x=100
Step-by-step explanation:
23+.10x=19+.14x
God bless!
Does anyone know the answer for this question
Answers
25. A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, asked
those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US
economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the
table below.
better same worse
Republican
38 104 44
Democrat
12 87 137
none
21 90 118
Express each of your answers as a percent rounded to the nearest tenth (for example, 12.3%).
es
a. What percent of survey respondents identified themselves as Republicans (marginal probability)?
Tons
ive
b. What percent of survey respondents thought the economy was about the same and were Republicans
(joint probability)?
c. What percent of Republicans thought the economy was about the same conditional probability)?
Question Help: Message instructor
Submit Question
Answers
Add the 3 republican amounts: 38 + 104 + 44 = 186
Divide by total people: 186/651 = 0.285714
Multiply by 100: 0.285714 x 100 = 28.5714%
Round to nearest tenth = 28.6%
Total of Same column: 104 + 87+90 = 281
Divide by total people: 281/651 = 0.431644
Multiply by 100: 0.431644 x 100 = 43.1644%
Round to nearest tenth = 43.2%
Republicans that said the same = 104
Total republicans = 38 + 104 + 44 = 186
Percentage = (104/186) x 100 = 55.9%
Let m = 14 and n = 12 m + 11 + 2n
Answers
Answer:
79
Step-by-step explanation:14+11+2(12) = 24 + 14 + 11 = 79
Answer:
49
Step-by-step explanation:
14+11+2(12)
14+11+24
25+24
49
on your own paper graph the following equations. describe the graphs and give a solution to the system of equations -2x - 5y = 20 y = 4/5 x + 2
Answers
Answer:
Please check the explanation.
Step-by-step explanation:
Given the system of equations
[tex]\begin{bmatrix}-2x-5y=20\\ y=\frac{4}{5}x+2\end{bmatrix}[/tex]
Please check the attached graph.
On the attached diagram:
The blue line represents the line -2x - 5y = 20
The red line represents the line y = 4/5x + 2
It is clear from the graph that both the graphs meet or intersect each other at the point (-5, -2).
In other words,
(x, y) = ( -5, -2) is the point of intersection of the two lines.
We know that the point of intersection of the two lines is the solution of the system of equations.
Therefore, the solution to the system of equations will be:
(x, y) = ( -5, -2)
The solution to the system of equations using the elimination method:
Given the system of equations
[tex]\begin{bmatrix}-2x-5y=20\\ y=\frac{4}{5}x+2\end{bmatrix}[/tex]
Arrange equation variables for elimination
[tex]\begin{bmatrix}-2x-5y=20\\ -\frac{4}{5}x+y=2\end{bmatrix}[/tex]
Multiply -2x - 5y = 20 by 2: -4x-10y=40
Multiply y = 4/5x + 2 by 5: -4x+5y=10
so
[tex]\begin{bmatrix}-4x-10y=40\\ -4x+5y=10\end{bmatrix}[/tex]
now subtracting
[tex]-4x+5y=10[/tex]
[tex]-[/tex]
[tex]\underline{-4x-10y=40}[/tex]
[tex]15y=-30[/tex]
solve 15y = -30 for y
[tex]15y=-30[/tex]
Divide both sides by 15
[tex]\frac{15y}{15}=\frac{-30}{15}[/tex]
[tex]y=-2[/tex]
For -4x-10y=40, plug in y = -2
[tex]-4x-10\left(-2\right)=40[/tex]
[tex]-4x+20=40[/tex]
simplify
[tex]-4x=20[/tex]
divide both sides by -4
[tex]\frac{-4x}{-4}=\frac{20}{-4}[/tex]
Simplify
[tex]x=-5[/tex]
Therefore,
The solution to the system of equations will be:
(x, y) = ( -5, -2)
f (x) =3x + 4, f(x) = -20
Answers
Answer: x= -8 and y = -20
Alexis divided a 5/12 pound bag of apples among her five friends. How many pounds of apples did each friend receive?
Answers
Answer: 1 /12 pounds each
Step-by-step explanation:
Alexis has a 5/12 pound bag of apples and 5 friends to divide them amongst.
The number of pounds each friend receives is the number of pounds Alexis has divided by the number of friends she has:
= 5/12 ÷ 5
= 5/12 * 1/5
= 5 / 60
Take the fraction to the lowest form by dividing by 5:
= 1 / 12
Hint: When dividing a fraction by a number, you can instead multiply that fraction by the inverse of that number.
y=3x-10
2x-5=y
plz help me with this and show the work plz i need it for my test
Answers
3x - 10 = 2x - 5
3x = 2x + 5
x = 5
Now solving for y:
y = 3x - 10
y = 3(5) - 10
y = 15 - 10
y = 5
(x, y) = (5, 5)
Check answer:
5 = 3(5) - 10
5 = 15 - 10
5 = 5
5 = 2(5) - 5
5 = 10 - 5
5 = 5
Since all of the equalities are true, (5, 5) is a true solution
I CAN GIVE BRAINLIEST PLEASE HELP
Find the measure of angle x.
A.34
B.40
C.56
D.59
Answers
x = 55.8 or 56 so the answer’s C
Answer:
It is 56 exactly 55.8
Step-by-step explanation:
plssssssssss mark brainliest
Is-5 a solution to the equation 6x+5=5x+8+2 x? Explain. please help asap
Answers
Answer:
6x+5=5x+8+2x
x= -3
Step-by-step explanation:
use like terms so add 5x+2x=7x
6x+5=7x+8
subtract 5 from both sides
6x+5-5=7x+8-5
simplify
-x = 3
divide both sides by -1
-x/-1 = 3/-1
x= -3
so no -5 is not a solution
V104 broadcast 20 minutes of news for every 2 minutes. V105 broadcast 25 minutes of news for every 4 minutes. Which station has more news each hour? Explain your answer.
Answers
Answer:
V105 because it releases longer news reports over a reasonable amount of time
Step-by-step explanation:
V104-
20min news: 2 minutes
40 mins news:4 mins
V105-
25 min news:4 mins
50 min news:8 mins
How do i answer this I am confused
Answers
Answer:
C
Step-by-step explanation:
this is the only equation that has a solution of (0,0) which means, when graphed, the line passes through the point of origin
answer A would cross the y-axis at -1/2, not 0
answer B would cross the y-axis at -2, not 0
answer D is not a linear equation
Expand and simplify 2(3x - 5) + 3(2x + 3)
Answers
Answer:
12x - 1
Step-by-step explanation:
If a || b and ____, then a || c.
• b || c
• a upside down T c
• b upside down T c
• b upside down T a
Answers
Answer:
it will option A it is correct answer
Given the equation y= -3x + 2.5 . When x is 0, what value of y makes the equation true?
Answers
Answer:
2.5
Step-by-step explanation:
plug in 0 where x is in the equation to find y
y = -3x + 2.5
y = -3(0) + 2.5
y = 2.5
check it by subbing 2.5 into the y values
2.5 = -3x + 2.5
-2.5. -2.5
0 = -3x
+3x
3x = 0
x = 0
Diva wants to make a flower arrangement for her aunt's birthday. She wants of the
arrangement to be roses. She has 12 roses. How many other flowers does she need to
finish the arrangement?
Answers
Answer:
This makes no sense.
Step-by-step explanation:
There can’t be an answer, there’s no other numbers involved.
Y = -3x + 4 Y = 4x - 10
Solve please
Answers
Answer:
(2,-2)
Step-by-step explanation:
Answer:
x = 2, y = -2
Step-by-step explanation:
This means that [tex]-3x + 4 = 4x - 10[/tex]
Now, you just have to solve the equation
[tex]-3x + 4 = 4x - 10\\\\[/tex]
add 3x to both sides
[tex]4 = 7x - 10[/tex]
add 10 to both sides
[tex]14 = 7x[/tex]
divide both sides by 7
[tex]x = 2[/tex]
Substitute this into the equation [tex]y = -3x + 4[/tex]
[tex]y = -3(2) +4\\y = -6 + 4[/tex]
[tex]y = -2\\[/tex]
-5x+ 8y = 10
-4x+ y = -19
Answers
Answer:
(6, 5)
Step-by-step explanation:
5x-1/4x + 7 / x(x-3)
Answers
= 19x^2 + 28x - 84/4x
Unit #3 Lesson #4 Exit Ticket: The function y=h(x) is shown graphed below. Answer the following questions based on the graph.
Answers
Step-by-step explanation:
If each block is considered as 1 unit,
the zeroes of f(x) are -3 and 7.
At x = 2, h(x) is at its absolute maximum. In the interval 2 <= x <= 5, the function h(x) is decreasing.
34 + 2 ⋅ 5 =
I really need help with this
Answers
Answer:
44
Step-by-step explanation:
PEMDAS
34+2*5
34+10
44
Explanation
HURRY!!! A box of oat cereal costs $4.35 for 15 ounces. A box of rice cereal costs $3.90 for 13 ounces.
Which box of cereal costs less per ounce? Complete the explanation and give your answer.
$4.35
15 ounces
1 ounce
$3.90
13 ounces
1 ounce
The box of
V cereal costs less per ounce since its unit rate is less than the unit rate for? cereal.
Answers
For the oat cereal divide $3.90 by 15
3.90/15
.26 per ounce
For the rice cereal divide $3.30 by 11
3.30/11
.30 per ounce
The oat cereal costs less per ounce since it is only .26 per ounce whereas the rice cereal is .30 per ounce.
Hope this helps!
Complete the patterns of equivalent ratios by filling in the gaps.
_ : 15
8 : 12
_ : 9
_ : 6
2 :3
HELP!!
Answers
6:9
4:6
2:3
the ratio is 2:3, in simplest forms for all of them.
what is the range of this function
Answers
Answer:
all real numbers such as 0<y<40
Step-by-step explanation:
as the tub is draining water, it will never exceed original amount of 40. the lowest amount of water you can have is 0, never below 0
A soccer team won only 10 of their first 30 games how many of the remaining 20 games will they have to win to have a .500 record?
Answers
Answer:
They would have to win 15 games to have a .500 record.
Step-by-step explanation:
I'm pretty sure that I'm correct. Hope this helps and have a nice day!
Answer:
they have to win 15 games more to have a .500 record
Step-by-step explanation:
If .500 means half,then :
half of 50 games= 25 games
They already won 10
So they need to win 15 more games to have 25 games (half of the 50 games)
Which of the following statements is needed in order to prove these triangles are congruent using SSS
Answers
Answer:
D
Step-by-step explanation:
The statements that is needed in order to prove these triangles are congruent using SSS is; AB ≅ DE
What is the congruent triangle?Two triangles are said to be congruent if the length of the sides is equal, a measure of the angles are equal and they can be superimposed.
ASA or Angle-Side-Angle stated that If two corresponding interior angles of two triangles and the included sides are congruent, the triangles are congruent.
SSS or Side-Side-Side postulate state that If three corresponding sides of two triangles are congruent, the triangles are congruent.
In a triangle BCA≅ EFD
three corresponding sides must be equal.
The statements that is needed in order to prove these triangles are congruent using SSS is; AB ≅ DE
Learn more about congruent triangles;
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can anyone answer -4(3-x)-7x and show the work !
