1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
astra-53 [7]
1 year ago
5

In the accompanying diagram of parallelogram ABCD,diagonals AC and DB intersect at E, AE = 3x - 4, andEC = x + 12.What is the va

lue of x?

Mathematics
1 answer:
skelet666 [1.2K]1 year ago
4 0

x = 8

Explanation:

AE = 3x - 4

EC = x + 12

SInce diagonals AC and DB intersect at E

it means the lines which meet at the intersection E are equal. A and C meet at E which gives AE and EC

AE = EC

3x - 4 = x + 12

collect like terms:

3x - x = 12 + 4

2x = 16

divide both sides by 2:

2x/2 = 16/2

x = 8

You might be interested in
This my last one help
Lerok [7]

Answer:

A2 = 120

A3 = 60

A5 = 60

A6 = 120

Step-by-step explanation:

Angle 1 and 2 are supplementary, so A2 = 180 - 60, which is 120.

Angle 1 and 3 are vertical angles, which are always the same measure.

Angle 5 is alternate interior angles with 3, which means it is also 60.

Angle 6 is alternate interior angles with 4, which means it is 120.

3 0
3 years ago
Anyone wanna be friends? im so bored my phone got taken need people to talk to on here
stira [4]

Answer:

sure

Step-by-step explanation:

3 0
3 years ago
Please explain how you got your answers! (: Solve the problem by using the counting principle.
Natasha2012 [34]
A. The number of fabric-pattern-color combinations is 4 * 13 * 9 = 468

B. P(1st choice) = no of novels / total books = 3/6 = 1/2
    P(2nd choice) = no of remaining novels/ total remaining books = 2/5
    P(both novels) = 1/2 * 2/5 = 1/5          (without replacement assumed)

C. P(1st choice) = no of biographies / total books = 2/6 = 1/3
    P(2nd choice) = no of remaining biographies/ total remaining books =        1/5
    P(both biographies) = 1/3 * 1/5 = 1/15          (without replacement                assumed)

D. P(1st choice) = no of history books / total books = 1/6
    P(2nd choice) = no of novels/ total remaining books = 3/5
    P(a history, then a novel) = 1/6 * 3/5 = 1/10          (without replacement assumed)
7 0
3 years ago
Translate the word problem using an inequality and solve and graph it.
galben [10]

Answer:

ok

Step-by-step explanation:

6 0
3 years ago
Rita has the following data:
Lubov Fominskaja [6]
The range is the difference between the largest number and the smallest number. This means you subtract the smallest number from the largest number. If the range is 8, then you can add 8 to the smallest number on the list to get the largest number, m.
Our smallest number is 12, so add 8 to 12.
8 + 12 = 20, so m is 20.
I hope this helps!
8 0
3 years ago
Other questions:
  • Two f-18s are catapulted off an aircraft carrier and fly on courses that diverge at a 60° angle. if each flies at a constant rat
    11·1 answer
  • If it is 12:25 how much time passed
    6·2 answers
  • I need help with number 1
    13·1 answer
  • Alexa knit a total of 6 centimeters of scarf over 2 nights. How many nights will Alexa have to spend knitting in order to knit a
    9·1 answer
  • 4/x-1 + 3/x -3=0<br> (Solving rational expressions)
    12·1 answer
  • WHOEVER GETS RIGHT AND SENDS FIRST WILL GET: 5 STARS AND THANKS<br><br><br> 2.04 &gt; b–13.96
    5·2 answers
  • . Explain the Error: Katie said, “All Negative numbers are integers.” What was her error?
    5·2 answers
  • Select the correct answer from the drop-down menu.
    15·1 answer
  • What is an equivalent ratio of 5:9
    13·2 answers
  • In 30 years a man will be twice as old as he will be in 2 years. How old is he now?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!