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
wlad13 [49]
3 years ago
14

Find the measure of AB if B is the midpoint of AC and AB = 2x - 4 and AC = 28

Mathematics
1 answer:
yarga [219]3 years ago
4 0

Answer:

AB=14

Step-by-step explanation:

First you write the equation 2(2x-4)=28 because if b is the midpoint then AB is half of the line so you multiply that half by two the make it equal to the whole line.

Then you distribute the two and get 4x-8=28.

Then you add 8 to 28 and get 36.

Then you divide 36 by 4 because the 4 and x are being multiplied together so you have to divide to get them apart.

So then you get x=9 and you aren't done yet because you have to plug x into 2x-4.

So it is 2(9)-4 which is 18-4 which equals 14.

You might be interested in
Make x the subject y=ab-x
sergejj [24]

Answer:

x = ab - y

Step-by-step explanation:

y - ab = -x

-y + ab = x

can also be written as

x = ab - y

6 0
3 years ago
Read 2 more answers
Complete the square to find the vertex of this parabola.<br><br> <img src="https://tex.z-dn.net/?f=y%5E2%20%2B%2012x%20-%2010y%2
Viefleur [7K]
The answer is : (2,5)
7 0
3 years ago
The answer is 3937 or 3938. I tried to solve the question but I got 31.1. Can someone please help me understand what I did wrong
KonstantinChe [14]

Answer:

3937.5 or 3938 after round-off

Step-by-step explanation:

11 minutes 15 seconds = 11.25 minutes

5 members of the family shower 7 times a week for 11.25 minutes

=total of 393.75 minutes

393.75 times the amount of water used which is 10 litres becomes 3937.5

I hope this helps

7 0
3 years ago
Read 2 more answers
What are the original dimensions of the square piece of paper?
Inga [223]

Answer:

6root2 × 6root2

you have to use pythagoras

a²+b²=c²

c=12

12²=144

a²+b²=144

but it is a square so I'll just change a and b to x because it shows they are equal

x²+x²=144

2x²=144

x²=72

x=6root2

4 0
3 years ago
What is the equation for 14 more than 5 times more the number is 39
Inga [223]

Answer:

14 + 5x = 39

Step-by-step explanation:

first I had to remember the keywords that gave me a hint of what I have to write. I figured out that more is plus ( + ) , times is multiplication ( x ) , and is is the equal sign ( = ).

5 0
3 years ago
Other questions:
  • The measure of an angle is two times the measure of a supplementary angle. what is the measure of each angle
    10·1 answer
  • What is the difference between a copay and coinsurance?
    9·1 answer
  • 1/3(4+18)-2 to the second power
    14·1 answer
  • On a test, Shoshana got 65% or 23.4 of the items correct? How many items were on the test?
    7·2 answers
  • Alex swims at an average speed of 45 meters per minute. How far does he swim in 1 minute and 24 seconds?
    6·1 answer
  • Explain how to compare too ratios?
    9·1 answer
  • If each bus can carry 26 students how many buses would be needed for 325 students
    7·1 answer
  • What percent of the data lies between 109 minutes and 138 minutes?
    15·2 answers
  • On Wednesday Mr. Miles walked in right at 9/10 of the trail then he walked one eights of the trail back and you stop to rest wha
    12·1 answer
  • 1. Use the words below to complete the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!