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
stepladder [879]
3 years ago
15

DE is the perpendicular bisector of AC. Find AC.

Mathematics
1 answer:
Masja [62]3 years ago
7 0

Answer:

Step-by-step explanation:

It is hard to read but (5x - 2) + (7x - 9)  =  AC    also  5x - 2   =   7x - 9

    5x - 2 = 7x - 9         subtract 5x from both sides then add 9 to both sides

5x - 5x - 2 + 9  = 7x - 5x - 9 + 9

   -2 + 9 = 7x - 5x

          7  =  2x

        3.5  =  x

    5x - 2 = 7x - 9    

         3   ≠    -2                        when x = 1

         8   ≠     5                        when x = 2

        13   ≠    12                        when x = 3

     15.5   =    15.5                     when x = 3.5

        18   ≠    19                        when x = 4

You might be interested in
What is 0.82 as a fraction
shepuryov [24]
I am pretty sure it's 82/100.
4 0
3 years ago
Read 2 more answers
At the movie theatre, child admission is $ 5.90 and adult admission is $ 9.00 . On Monday, 153 tickets were sold for a total sal
Dmitrij [34]

Answer:

1160.3


Step by step explanation:

1169.30-9.00


6 0
3 years ago
What are the features of the quadratic function f(×) =×2 +10×+21?​
laiz [17]

A is the correct answer

Or

Vertex = (-5,-4), y-intercept = (0,21), x-intercepts = (-7,0) and (-3,0), axis of

symmetry is x = -5

8 0
3 years ago
What's x and y for x=1+y and 2y+x=10
Sav [38]
Substitute the value of x in equation 2. Then you'll get y=3. Then again substitute the value of y in x=1+y, you'll get x=4
8 0
3 years ago
Read 2 more answers
Determine whether the random variable is discrete or continuous. a. The distance a baseball travels in the air after being hit.
vodomira [7]

Answer and explanation:

Discrete random variables can be counted as integers and you can't divide them. Continuous random variables are counted as real numbers and are magnitudes that can´t be counted as an exact number (there will always be an uncertainty in the measurement).

a. The random variable is continuous. Distance is a measurement.

b. The random variable is discrete. You can count how many people are sitting at a computer.

c. The random variable is continuous. Weight is a measurement.

d. The random variable is discrete. You can count how many fishes were caught.

e. The random variable is discrete. You can count how many hints a web site had.

7 0
3 years ago
Other questions:
  • Jennifer had 7/8 foot board she cut off 1/4 foot peice that was for a project.in feet how much board was left?
    10·1 answer
  • Find w(6) for the function w(x) = 4x+5
    5·2 answers
  • Help 10 points Is the most it allowed me to put so yeah but still need help. What number is missing from this factor tree for th
    8·1 answer
  • Rina has a piece of blue ribbin
    15·2 answers
  • Solve the system 2x-y+3z=-8
    8·1 answer
  • Please help!! What is the value of the following expression when x=3 and y= -2?
    13·2 answers
  • Alana walked 3/4 mile to the library. later she walked 7/8 mile to the ice cream store how far did she walk in all?
    11·2 answers
  • Can someone help me with this I need a answer ASAP
    7·2 answers
  • Please help and thank you
    14·1 answer
  • In​ randomized, double-blind clinical trials of a new​ vaccine, rats were randomly divided into two groups. Subjects in group 1
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!