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
alisha [4.7K]
3 years ago
15

In the figure, BD is a median. If AD=6x+10 and CD=2x+12, find the length of AC. Show your work.

Mathematics
1 answer:
Valentin [98]3 years ago
6 0

Answer:

26.

Step-by-step explanation:

Given, BD is a median. As it divides the AC equally, that's why it will AD=CD. Given, AD= 6x+10 and CD= 2x+12

Now, AD=  CD

or, 6x+10=2x+12

or, 6x-2x= 12-10

or, 4x= 2

or, x= 1/2

So the value of x is 1/2. As BD divided AC equally, both AD and CD will be equal and AD+CD= AC.

So, 6x+10+2x+12= AC

or, 8x+22= AC

or, 8 X (1/2) + 22= AC

or, 4+22 = AC

or, AC= 26.

 

You might be interested in
Part F
mihalych1998 [28]

Answer:

The geometric mean of the measures of the line segments AD and DC is  60/13

Step-by-step explanation:

Geometric mean: BD² = AD×DC

BD = √(AD×DC)

hypotenuse/leg = leg/part

ΔADB: AC/12 = 12/AD

AC×AD = 12×12 = 144

AD = 144/AC

ΔBDC: AC/5 = 5/DC

AC×DC = 5×5 = 25

DC = 25/AC

BD = √[(144/AC)(25/AC)]

BD = (12×5)/AC

BD= 60/AC

Apply Pythagoras theorem in ΔABC

AC² = 12² + 5²

AC² = 144+ 25 = 169

AC = √169 = 13

BD = 60/13

The geometric mean of the measures of the line segments AD and DC is BD = 60/13

6 0
3 years ago
 If the trapezoid below is reflected across the x-axis, what are the coordinates of B'?
Grace [21]
The x-coordinate remains the same as the x-coordinate of point B.
The y-coordinate becomes the additive inverse of the y-coordinate of point B.

Answer: B. (3, -8)

9 0
3 years ago
Read 2 more answers
Draw an angle of 40 degree. copy it's supplementary angle
Mila [183]
This is the correct form of a supplementary angle. 

3 0
3 years ago
Every five years in March, the Population of a certain town is recorded. In 1995, the town had a population of 4,500 people. Fro
alexgriva [62]
4,500 plus 15% is 5,175 minus 4% is 4,968 so your answer is 4,968. 
5 0
4 years ago
Of the cartons produced by a company, 8% have a puncture, 7% have a smashed corner, and 0.7% have both a puncture and a smashed
Viktor [21]

Answer:

The probability that a randomly selected carton has a puncture or a smashed corner is 0.143

Step-by-step explanation:

we know that P(A∪B) = P(A) + P(B) - P(A∩B).

    since given that P(A) = Probability of getting puncture = 0.08

                                P(B) = probability of getting smashed corner = 0.07

                       P(A∩B) = probability of getting both puncture and smashed corner = 0.007

                    P(A∪B) = probability of getting any of them

   so P(A∪B) = 0.08 + 0.07 -0.007 = O.143

5 0
3 years ago
Other questions:
  • 3X3X3X3X3X3X3=? Please help me
    7·2 answers
  • What value is added to both sides of the equation x2 − 4x = −2 in order to solve by completing the square? 4, 2 , −2 , −4
    5·1 answer
  • PLZ HELP ill GIVE BRAINIESt!!!!20 Points
    10·1 answer
  • Omg this is too hard, which is this one?
    7·1 answer
  • Can I have workings out plz x
    11·1 answer
  • Is 1.875 an rational or irrational number
    6·2 answers
  • 13x-126=162+5x what is the answer to this equation
    13·2 answers
  • 21, 18, 45, 33, 4, 12, 21<br><br> Mean:<br><br> Median:<br><br> Mode:<br><br> Range:
    12·1 answer
  • If m2QSR = 4x, mZPSR= 153, and mZPSQ = 5x.<br> Find m2QSR.
    11·1 answer
  • In a study of texting speed, 45 adults aged 18-22 were randomly chosen. Each person was asked to the following phrase exactly "H
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!