Mathematics High School

If angle DEF is an isosceles triangle with DE congruent to EF, Find x

If Angle DEF Is An Isosceles Triangle With DE Congruent To EF, Find X

Answers

Answer 1

Answer:

Fourth choice, 16

Step-by-step explanation:

The 2 angles are both 74 degrees, so the side that is facing each angle will be the same length, so:

9x - 73 = 3x + 23

add 73 to both sides

9x = 3x + 96

subtract 3x from both sides

6x = 96

divide by 6

x = 16

Related Questions

1. Write an equation that shows 45% of c is 144. ​

Answers

Answer:0.45c=144

Step-by-step explanation:

45%= 0.45

0.45*c=144

I would love some help here

Answers

Answer:

first

Step-by-step explanation:

If I can read 54 pgs in 3 days, how many can I read in 1 day?






7 notebooks cost $21. How much for 5 notebooks?

Answers

Answer:

18 pages

$15

Step-by-step explanation:

54/3= 18

21/7= 3

3*5=15

Answer:

105

Step-by-step explanation:

PLEASE HELP ASAP!!!!!!!!!!

Answers

Answer: -15 if I am wrong then -35

Answer:

-15

Step-by-step explanation:

-15 .hwushshshsjwo

Can I PLEASE GET SOME HELP FROM SOMEBODY ANYBODY for these questions 26,43,44,45 PLEASE ​

Answers

Answer:

sure

Step-by-step explanation:

1-4x/2x+1=4/1-5x
solve in quadratic equations​

Answers

Answer:

I can only assume that the entire 1-4x is divided by 2x, and 4 by all of 1 - 5x.  You can guarantee more accurate results by using brackets where appropriate.  If I read that expression with the correct notation, it reads as [tex]1 - \frac{4x}{2x} + 1 = \frac{4}{1} - 5x[/tex].

Assuming instead that it's meant as [tex]\frac{1 - 4x}{2x + 1} = \frac{4}{1 - 5x}[/tex], we can solve it as shown below, giving us x values of 1 and 3/20 (or 0.15).

Step-by-step explanation:

First let's reformat this to the usual ax² + bx + c format:

[tex]\frac{1 - 4x}{2x + 1} = \frac{4}{1 - 5x}\\(1 - 4x)(1 - 5x) = 4(2x + 1)\\1 - 5x - 4x + 20x^2 = 8x + 4\\20x^2 - 5x - 4x - 8x + 1 - 4 = 0\\20x^2 - 17x - 3 = 0[/tex]

Let's solve it with the quadratic formula:

[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}\\\\x = \frac{17 \pm \sqrt{-17^2 - 4\times 20 \times( -3)} }{2\times20}\\\\x = \frac{17 \pm \sqrt{289 + 240} }{40}\\\\x = \frac{17 \pm 23 }{40}\\\\x = 1, \frac{3}{20}[/tex]

plz help i’ll mark brainliest for correct answer

Answers

Answer:B

Step-by-step explanation:

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

answer choices?

Are these three side lengths a right triangle?
5, 5, 5√s
yes or no?

Answers

Answer:

no

Step-by-step explanation:

Answer:

No, it makes an isosceles triangle that has angles in two 70°'s, and 20°'s

Step-by-step explanation:

2x – 3y = 17
–3x + y = –1
solve by elimination

Answers

Answer:

(-2,-7)

alternatively

x: -2

y: -7

(x+1)^2-(x-8)^2
please help

Answers

simply each term

x^2+2x+1-x^2+16x-64

simply by adding terms

18x - 63

The product of a number b and -1.6 is less than -9.6.

Answers

Answer:

I don't have Idea

I NEED HELPPP!
7th gradeee

Answers

Answer:

- 2/3

-2/3

2/-3

Step-by-step explanation:

8. Syairra needs to take an Uber to get to
the airport. The Uber charges $5.00 for
the first mile, and then $3.00 for each mile
after that. If the total charge is $62.00,
then how far was Syairra's taxi ride to the
airport?

Answers

you would do “62=3x+5”

subtract 5 from both sides to get 57=3x
divide both sides by 3 to get 19.

the answer is 19 miles

Answer: 20 miles

Step-by-step explanation:

Since the Uber charges $5.00 for the first mile you have to subtract that from the total which is 62.

62.00 - 5.00 = 57.00

Then you keep subtracting 3.00 from 57.00 or you can divide 57 by 3 because 57 is how much money is left and the Uber charges 3 dollars for each mile after the first.

57.00 divided by 3.00 is 19

Then add 1 to 19 which equals 20 miles. You add 1 to 19 because 19 is the amount of miles she goes but that doesn’t include the 1st mile.

Sorry if this is confusing

A community needs to raise at least $5,000 for a new park. They have raised $3,250 so far and are selling flower arrangements for $25 each. How many flower arrangements, a, do they need to sell to raise at least $5,000?

A. 70
B. 69
C. 74
D. 75

Answers

Answer:

https://brainly.com/question/20226577

Step-by-step explanation:

B. 69

It 69 because if you subtract 5,000 and 3,250 you get 1725 remaining so time 69 with 25 you get 1725 so the answer is 69

Which point represents the ordered pair (-2 1/4, 2/3)?
A. Point Q
B. Point R
C. Point S
D. Point T

Answers

Answer: c. Point S

Step-by-step explanation:

Answer:point s

Step-by-step explanation:

Which subset of the rational numbers best describes the number of students that could be in a classroom?
A. Whole numbers
B. integers
C. natural numbers
D. rational numbers

Answers

Answer:

Natural Numbers

Step-by-step explanation:

Write one linear equation that is Parallel to y = - 4x + 7

Answers

Answer:

y=-4x+3

Step-by-step explanation:

same slope different y intercept.

Please I need help :(

Answers

Answer:

Step-by-step explanation:

Answer:

The picture has the answer

Step-by-step explanation:

First since the y-intercept is -2 you will draw a point on -2 on the y - axis.

Next you will do rise over run. Go up 3 from -2 then move to the right 2. Then draw another point. And draw a line through the two points.

I will do a pic for you!

Hope this helps ya!!

The price of a Nintendo Switch was on sale on Black Friday for $250, the original price was $300. What percent was it marked down?

A. 20%
B. 25%
C. 50%
D. None of the above.​

Answers

Answer:

A

Step-by-step explanation:

Answer:

none of the above

Step-by-step explanation:

plz mark as brainliest

Given A is between Y and Z and YA = 11.5, AZ = 4x - 6 and YZ = 83.5, find AZ.
(Drawing a line may help you work the problem).

Answers

Answer:

kk

Step-by-step explanation:

kk

can someone please help me find out what LN and KN is

Answers

Answer:

LN= 3,9

KN=-2,9

Step-by-step explanation:

its that answer because on the number lime L is 3 and N is 9 and K is -2

the slope of the line y=6x-1 is steep
true or false?

Answers

Answer:

yes true

Step-by-step explanation:

Solve the two-step equation and identify the steps.

2= -7/4 + 1/4x

1. Add 7/4 to both sides
2. Multiply both sides by 4.

The solution is 15.

Answers

Answer:

x = 15

Step-by-step explanation:

Given

2 = - [tex]\frac{7}{4}[/tex] + [tex]\frac{1}{4}[/tex] x

Multiply through by 4 to clear the fractions

8 = - 7 + x ( add 7 to both sides )

15 = x

Answer:

Answer:

Step-by-step explanation:

Help ASAP !
Help ASAP !
Help ASAP !
Help ASAP !

Answers

Answer:

5/28

Step-by-step explanation:

5/4 / 7     =  5/4 * 1/7  = 5/28

Answer:

5/28

Step-by-step explanation:

it could also be 0.17 in decimal form

please it’s an emergency

Answers

Answer: C

Step-by-step explanation:

Okay first set a comparison since the two triangles are similar

x-1/20=x-1+27/3x+8

x-1/20 = x+26/3x+8

cross multiply

20x+520=3x^2+8x-3x-8

3x^2-15x-528=0

3(x^2-5x-176)=0

im kinda lazy to factor this out so i used an online calculator right here but factor it out like a good kid

x=16, x=-11

it has to be positive so x=16

C

Janet buys a pair of shoes for 50% off the original price of $80. What is the sale price of the shoes?

Answers

Answer:

$40

Step-by-step explanation:

Answer:

$40

Step-by-step explanation:

80 divided by 2 = 40 50 %

Please help with figures

Answers

Answer:

x=11.9 mm

Step-by-step explanation:

which is an example of the electromagnetic force​

Answers

Answer:

Light

explanation:

All light are waves in the electromagnetic field, from gamma rays, though x-rays,

Answer 2:

I'd say the second most common example would be molecules as they all rely on electromagnetism to bind the atoms to each other.

Answer: All of the light from the Sun and other sources consists of photons which are the electromagnetic force carriers.

electrostatic forces and magnetic forces.

Step-by-step explanation:

Chris is buying a new I-phone at the discount of 10%. The original price is $399.99. How much money will he pay for his new phone?

Answers

359.99 is the final answer do u want work

Answer:

He will pay $360.00 for his new phone. It best be at LEAST an IPhone 9.

Step-by-step explanation:

Other Questions
What type of oral history interview questions get the most elaborate answers?true or falseopen-endedyes or norhetorical Students were asked to observe pond organisms in a Petri dish. At the end of class, which of these is the MOST appropriate clean-up method?Wipe the lab bench with a paper towel and rinse hands with alcohol.Wipe the lab bench with dry brush and dry hands with a paper towel.Wipe the lab bench with disinfectant and wash hands with soap and water.Wipe the lab bench with a paper towel and wash hands with soap and water. A cook uses 5 parts of vinegar for every 8parts of olive oil in a salad dressing recipe. Which statement is true?The cook should use 3/5 tablespoon of vinegar for every tablespoon of olive oil.The cook should use 5/8 cup of olive oil for every cup of vinegar.The cook should use 1 3/5 cups of olive oil for every cup of vinegar.The cook should use 1 3/5 tablespoons of vinegar for every tablespoon of olive oil. I WILL GIVE BRAINLIEST PLEASE HELP T-T !!A sequence is defined by the recusive function fin + 1) = fn). Iff3) = 9, what is f(1) ? - 1- 3- 27- 81 What does the underlined word mean in the following sentence?El abuelo va a morir luego. Triangle QRS and triangle QTV are similar.Which equation must be true? What does the British ship Somerset most clearly symbolize in Paul Reveres Ride?a. the dangers of the mens missionb. the power of the American armyc. the adventure of travel by sead. the transition from old ways to newPlease don't just choose a random answer just because you want points. 1/2 divided by 7 1/2 The distance from Polnt A to Point B on a scale drawing Is 6 cm. If the scale is 1cm : 10m. What isthe actual distance from A to B? what is the least common multiple between 9 and 6 Divide 1/4 and 2/3 and express the answer in simplest form Which sentence from the passage supports the idea that the problem of being faced with lots of unhealthy food choices pertains to many people? In 2020, the United States population is 3.31 x 108. What is this number in standard form?33,100,000B331,000,000,000331,000,000D3,310,000anybody know the answer?? english julius caesar critical thinking puzzle the letters on his face are E, R, Y, H, and M:) In what ways humans affect animals population? I need help ASAP!In Sophocles's Greek tragedy Oedipus the King, Oedipus discovers that he has unknowingly killed his biological father and married his birth mother. The horror of this truth causes Jocasta, Oedipuss wife/mother, to hang herself and Oedipus to stab himself in the eyes. What element of Greek tragedy do these final two acts give expression to?A. catastropheB. hamartia(C was removed for being wrong)D. catharsisE. hubris Samantha's savings account paid 2.5% interest per month. Which of the following shows 2.5% as a fraction? Answer these two get marked brainiest! Find the value of each variable I need 6-10 If Paul works on Saturdays, he earns $8 per hour (h). plus a $15 bonus for working on the weekend. He wrote afunction, f(h) = 8h + 15 to help calculate how much he would earn working different numbers of hours next Saturday.How much will Paul earn for working 6 hours and 8 hours?A)$63, $78$63, $78B)$48, $64$48. $64C)$63, $79$63, $79D) $48, $79$48, $79