20 POINTS WILL MARK BRAINLIEST PLEASE EXPLAIN

Answers

Answer 1

Answer:

DCE is 54°

Step-by-step explanation:

To solve this, we must come up with an equation. Since D, C, and E are each straight lines, they are each 180°. then, each line is separating the other which splits the 180 degree line into two parts. For example, E separates D, C separates E, and so on. The exterior angles are given, but the interior aren't. So:

for angle EDC: 180 - (9x - 31)

for angle CED: 180 - (4x + 33)

for angle DCE: 180 - (7x - 2)

we know that all angles in a triangle add up to 180°. So, our equation is:

180 - (9x - 31) + 180 - (4x + 33) + 180 - (7x - 2)=180.

simplify:

180 - 9x + 31 + 180 - 4x - 33 + 180 - 7x + 2=180

540 - 20x = 180

540 - 180 = 20x

360=20x

x= 18

for angle EDC: 180 - (9•18 - 31)=49°

for angle CED: 180 - (4•18 + 33)=75°

for angle DCE: 180 - (7•18 - 2)=54°

Related Questions

Evaluate:

54 - 75 + 81 - (-27) + 53

Answers

54-75+81-(-27)+53
Turn the two negatives positive

54-74+81+27+53
Add 81 and 27
Add 108 and 53
Add 54 and 80
Subtract 75 from 134
= 59

Evaluate using the order of operations. Enter the answer in simplest form.
3/5+1/7÷3

Answers

Answer:

0.64761904761

Step-by-step explanation:

3/5+1/7 x 1/3 = 3/5+1/21
Your answer is 68/105

iTunes charges a one time fee of $10 and $ 1 per song . Spotify charges a one time fee of $20 and $0.50 per song. After how many songs will the Spotify membership pay off and in the long run cost you less ?

Answers

Answer:

Step-by-step explanation:

The mean (average) of 4 numbers is 88.
What is the fourth number if three of the numbers are 80, 95, and 85
A 32
B. 54
с. 75
D. 99
E none of these

Answers

Answer:

E non of the above

Step-by-step explanation:

To get the original number you multiply 88 by 4

Then you add 80, 85 and 95 and then minus it from the original number

You should end up with 352 minus 260

Therefore the answer would be 92 and not a given answer so your answer is e: none of the above

HELP PLEASE Which equation shows a proportional relationship between x and y?

y = 4x
y=−3x−2
y = 3x + 1
y = 9

Answers

Answer:

y = 3x + 1 I think........

3. Reason Can you write
3+ 4+ 7 = 14 as a multiplication
sentence? Explain.

Answers

Answer:

3 + 4 + 7 = 14

7 + 7 = 14

2(7) = 14

Step-by-step explanation:

Do we use the same numbers? If not just find out what equals 14 when you’re multiplying for example 7x2=14 or 14x1=14

PLEASE HELP I BEG YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

R1: Given

R2: Subtraction Property of Equality

R3: Distribute Property

R4: Addition Property of Equality

R5: Division Property of Equality

Write a paragraph proof for the following conjecture: m∠1 + m∠2 = m∠4

Prove: m∠3 + m∠1 + m∠2 = 180°

Given: ∠1 + ∠2 = ∠ 4

∠4 + ∠3 must be 180° because they are supplementary

If ∠4 + ∠3 is 180, and ∠1 + ∠2 = ∠4, you can substitute ∠4 in the first equation for ∠1 + ∠2.

Hence, we arrive at the answer ∠1 + ∠2 + ∠3 = 180.

Plz mark brainliest:)

You pay $25 each month for satellite TV, plus $1.50 for every movie you purchase. Write and solve an equation to find the number of movies purchased during a month with a total bill of $38.50

Answers

$38.50=1.50x+$25 where x is the number of videos ordered during the month

Answer

9 movies

Step-by-step explanation:

$25 - 38.50 = $13.50

13.50/ $1.50 = 9

Select all the angles that are
congruent to 6.
A 1 C 3 E 7
B 2 D 4 F 8

Answers

Send a image of the problem then I can help a

Help easy question......Branliest reward

Answers

Answer:

Step-by-step explanation:

Answer:

y=42.91

Step-by-step explanation:

cos 35=y/53

0.81=y/53

y=0.81*53

y=42.91

What do the factors in the factored form represent?

Answers

Answer:

The factored form tells you the times at which the object's height is zero (the roots). ... Write the equation for this parabola in vertex form, factored form, and general form. From the graph you can see that the x-intercepts are 3 and 5. So the factored form contains the binomial expressions (x 3) and (x 5).

Step-by-step explanation:

could u answer my newest question? ive been stuck on it for hours

find the value of x in the proportion 4/7 = x 56 pls help!!

Answers

Answer:

Step-by-step explanation:

4=x56×7

4=x392

392/4=X

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 14 miles per hour slower than the westbound train. If the two trains are 480 miles apart after 3 hours, what is the rate of the eastbound train?

Answers

Answer: 73 mi/hr

Explanation:

Distance to east+Distance to west = 480

But distance = V x t

Let x be the velocity
And t = 3hr

=> 3(x - 14) + 3x = 480
=> 3x - 42 + 3x = 480
=> 6x - 42 = 480
=> 6x = 522
=> x = 522/6
=> x = 87

But eastbound train travel 14 mi less than westbound.

x - 14

But x = 87

=> 87 - 14 = 73

Thus, 73 is the rate of the eastbound train

73 is the rate of the eastbound train while The speed of the westbound train is 59 miles per hour.

What is Speed?

speed is described as. the pace at which an object's location changes in any direction. Speed is defined as the distance traveled divided by the travel time. Speed is a scalar quantity because it just has a direction and no magnitude.

Given, Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 14 miles per hour slower than the westbound train.

Eastbound train:

time = 3 hrs, rate = x mph, distance = 3x miles

Westbound train:

time = 3 hrs ; rate = x-14 ; distance = 3x-42 miles

3x + 3x - 42 = 480

6x = 438

x = 73 (rate of the eastbound train)

To find the rate of the westbound train:

rate = x -14

rate = 73 - 14

rate of westbound train = 59

Therefore, The speed of the westbound train is 59 miles per hour.

Learn more about speed here:

https://brainly.com/question/28224010

#SPJ1

NEED HELP QUICK!

3) Line A is represented by the equation y=1/4x + 5. Write in slope-intercept form the equation
of a line that is parallel to Line A and passes through the point (8, -2)

A) What is the slope of (m) of the parallel line?
B) What is the point on the parallel line?
C) Write the equation in Point-slope form.
D) Solve the above point-slope form equation for slope-intercept form (y=mx+b). Show your work.

Answers

Alright so..

A. M=-4

B. (8, 2)

C. Y-2=-4(x-8)

and i don't know about the last one

Maggie makes 18 muffins. She is making them for her book group, which has 12 members. If she divides the muffins equally, how many will each person get?

Answers

Answer:

1.5

Step-by-step explanation:

18/12=1.5

2. measure of an angle that is supplementary to

Answers

answer: 99°

explanation: first, we need to find angle T. we know that angle T and angle R are vertical angles, which means they’re the same. therefore, we solve the equation for x by doing angle T = angle R:
3x + 36 = 6x - 9
subtract 36 on both sides
3x = 6x - 45
subtract 6 on both sides
-3x = -45
divide both sides by -3
x= 15
then, plug in the value of x in 3x+36 to get angle T:
3(15) + 36= 81°
we found that angle T is 81°.
now, we need to find the supplementary angle of angle T. supplementary angles add up together to have a sum of 180°. to find the supplementary angle, subtract angle T from 180°:
180 - 81 = 99°
there we have the answer!

Write 3.6 x 10^-3 in standard form.

Answers

Answer: 33

Step-by-step explanation: hope this helps

Arthur is building a rectangular sandbox for his son. The area of the sandbox is 17 23/32
sandbox is 3 3/8feet, what is the width of the sandbox?

Answers

Answer:

The answer is 5 1/4 feet

A couple realizes a real estate financing of R $ 180,000.00, to be paid in 360 monthly installments, with an effective interest rate of 1% per month. The first installment is paid one month after the funds are released and the monthly installment is R $ 500.00 plus 1% interest on the outstanding balance (amount due before payment). Note that, with each payment, the outstanding balance is reduced by R $ 500.00 and consider that there is no arrears. By making the payment in this way, the amount, in reais, to be paid to the bank in the tenth installment is

a) 2,075.00.
b) 2,093.00.
c) 2,138.00.
d) 2 255.00.
e) 2 300.00.

Answers

Answer:

ANSWER: letter D

Step-by-step explanation:

In the tenth installment, the debit balance is, in reais, of

180000 - 9. 500 = 175500

The 1% interest on this amount results in:

1% . 175 500 = 1755

Thus, the tenth installment is, in reais, 500 + 1755 = 2255

-1/2(-2x+4y) someone expand this pls

Answers

Answer:

-1/2(-2x+4y)=

x-2y

Which function defines the sequence 6,8,10,....?
(5 Points)
f(n)=2n+4
f(n)=3n+2
f(n)=6n

Answers

Answer:

f(n)=2n+4

Is the answer

which of the following functions has a range of all real numbers?

Answers

Answer:

Step-by-step explanation:

The dots cannot intersect

-9x + 1 = - 80 Find the value of x

Answers

Answer:

Step-by-step explanation:

80+1=9x

81=9x

x=9

Step by step explanation:

Step 1:

→[tex]-9x + 1 = - 80[/tex]

Step 2:

→[tex] - 9x = - 80 - 1[/tex]

Step 3:

→[tex] - 9x = - 81[/tex]

Step 4:

→[tex]x = \dfrac{ - 81}{ - 9} [/tex]

Step 5:

→[tex]x = 9✓[/tex]

What is one third of 1296?

Answers

Answer:

four hundred thirty-two

Step-by-step explanation:

one third of 1296 is same as = ⅓ of 1296

⅓ of 1296 is same as = ⅓ × 1296

= ⅓ × 1296

= 1 × 1296 / 3

= 1296/3

Let us try to simplify this fraction . Both the numerator and the denominator is divisible by 3 .

Then ,

= 1296 ÷ 3 / 3 ÷ 3

= 432/1

= 432

Therefore , one third of 1296 is 432

Find the slope in fraction form

Answers

Answer:

-1/3

Step-by-step explanation:

Taking two points on the graph (I took (0,9) and (6,7)

Slope=(y2-y1)/(x2-x1)

(7-9)/(6-0)=-2/6

=-1/3

Answer: 1/3 is right.

Robin can clean 727272 rooms in 666 days. how many rooms do she clean in 9 days

Answers

Answer:

Robin can clean 9828 rooms in 9 days

Step-by-step explanation:

Since Robin can clean 727272 rooms in 666 days, we can find how many rooms she can clean in 1 day by dividing 727272 by 666

number of rooms cleaned by Robin in 1 day = 727272 rooms/666 days = 1092 rooms/day

We can then find how many rooms she can clean in 9 days by multiplying 1092 by 9

1092 rooms/day * 9 days = 9829 rooms

Triangle ABC is an obtuse triangle with the obtuse angle at vertex B. Angle A must be

less than 90°.
greater than 90°.
congruent to angle B.
congruent to angle C.

Answers

The correct answer is less than 90°

Express missing divisor using power of 10.

6.3 / ____= 0.0063

Answers

you first have to see how many times places the tenths are from the ten thousandths which is 3
so your going to have 3 zeros
so your answer would be 1000
hope that helps

Which inequality is graphed below?

Answers

X is less than or equal to -4

Answer:

the first one

x is greater than or equal to - 4

Step-by-step explanation:

Please help i will give brainliest

Answers

I hope this helps I tried my best

Other Questions

Cardiac muscular tissue and its function Background Halloween is typically the perfect holiday for young people. Its full of mischief, goofing around and candy galore. But this year, the annual October 31 festivities will probably look quite a bit different thanks to corona. Social distancing precautions will force many to alter their Halloween traditions in 2020. But that doesnt mean they wont find new ways to keep it spooky. The Centers for Disease Control and Prevention (CDC) released a list of classic Halloween activities ranked by risk levels. The agency says classic, door-to-door trick-or-treating is a high-risk activity during the pandemic. As an alternative, the agency suggests hosting a scavenger hunt-style trick-or-treat search around the house. If you do still plan to go venture out to collect candy, The Washington Post recommends taking precautions. Its recommendations include: using hand sanitizer frequently, avoiding gathering in groups and not eating candy while trick-or-treating. Also, make sure your costume includes a cloth mask. Your average costume mask might not offer the same protection against the corona virus, the CDC warns. Haunted attractions have been forced to adapt to the scary realities of 2020, as well. Salt Lake Citys Fear Factory haunted house is usually an up-close-and-personal experience. It features terrifying actors who swoop in close for a scare. This year, it will offer socially distanced frights. The scare has been completely redesigned, says Fear Factory COO Rob Dun field. We used to have animations draw customers attention so actors could pop out and startle them up close. Now, thats reversed. The costumed actors draw attention from farther away, then trigger an animation, loud noise, or air blast to go off right next to a person. In addition, drive-through haunted houses are popping up in cities around the world, including San Diego, Orlando, Houston and Tokyo. Every year has its costume trends, and 2020 will be no different. Undoubtedly, there will be many corona-themed costumes. But costume companies like Party City have also seen a jump in nurse, doctor and firefighter costumes. I think people are turning to the people who helped during the pandemic every day, says Julie Roehm, Party Citys chief marketing and experience officer. If you want a more low key and spook-free Halloween, you still have plenty of options. Sam Dominguez, a pediatrician specializing in infectious diseases, says that small groups of friends can gather outside to carve pumpkins or watch Halloween movies. But they should still wear masks and stay socially distanced. Thankfully, Halloween revelers will be able to depend on candy. This year, candy companies are preparing to sell more treats online. They are also focusing on candy that can be eaten at home, rather than passed out to trick-or-tr eaters. Already, supermarket analysts say the sale of chocolate and candy is up 13 percent from 2019. Everyones been cooped up in the house, so people are looking for something to celebrate, says Katie Thomas, a consumer trends analyst at the Barney Consumer Institute. PLEASE WRITE A PARAGRAPH ON THIS STORY PLEASE A 5000 kg truck and a 1000 kg car are traveling at constant speeds when they collide. What is true about the forces and accelerations on each? Which statement best describes Ben Rawlence's purpose for writing his book? A to encourage the international community to get more involved with the Somali refugee crisis B to deepen his readers' connection to and understanding of the hardships endured by Somali refugees C to help readers understand the crisis in Somalia and how it has affected Kenya by providing historical context D to draw attention to the refugee camp's flaws, while also emphasizing its importance to the Somali people Shang ____ were written on silk, bamboo, bronze, stone, and bones. What is the purpose of the Barrier Islands?to provide a food source for local residentsto harvest energy sources from the oceanto protect the coast by blocking wind, water and sandto create a haven for immigrants A zoo has 96 chickens and ducks altogether.The ratio of the number of chickens to thenumber of ducks is 53. How many chickensdoes the zoo have? Find the equation of line b described below, in slope-intercept formLine a is perpendicular to line b Line a passes through the points (1,-8) and (9,-12)Line b passes through the point (-8, -16)The equation of line b is y= ______ helpppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! pleaseeeeeee Google is just as dominant on mobile devices as it is on computers.True or False __ were trained to be ready at any time to go to battle. A. RedcoatsB. MinutemenC. Regulars D. AmericansE. Englishmen how can you apply your new found knowledge to your daily life? after going through the activity, i learned that the feelings that i caought could be Please help me with this PLEASE ANSWER ASAP, ANYONE WHO WRITES A LEGITIMATE ANSWER WITHIN THE NEXT 10 MIN GET BRAINLIEST!!write an equation of the line that passes through point P and is parallel to the line with the given equation P(-1, 3), y=4x-2) If a can of soup 150 g mass and 0.75g/ cm^3 density whats the volume Read this excerpt from We've Got a Job: The 1963 Children's MarchThen, in 1958, when he was nine, his mother got a job as a dental assistant - and a raise. At about the same time,Wash got a job, too. Six days a week for eight years, he woke up by four o'clock in the morning to deliver milk. By thetime he got to school each day, he'd already put in almost half a day's work.How does this excerpt help readers make a personal connection to the story?by connecting readers to his mother's medical trainingO by connecting readers to the milk-delivery businessby connecting readers to Wash's academic successO by connecting readers to Wash's daily work routine a and b are positive numbers.a is inversely proportional to b.when a=4,b=36find value of a when b=a What country does the creature in this cartoon represent? Question 2 options:GermanyEnglandUnited StatesFrance A man invests his savings in two accounts, one paying 6 percent and the other paying 10 percent simple interest per year. He puts twice as much in the lower-yielding account because it is less risky. His annual interest is 4202 dollars. How much did he invest at each rate? How were people in Moscow living during Stalin's Reign?