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
aleksley [76]
3 years ago
14

B is the midpoint of AC and AC=8r-20,and AB=3x-1 Find BC

Mathematics
1 answer:
muminat3 years ago
6 0

Answer:

BC = 26

Step-by-step explanation:

since B is the midpoint of AC, then AB = BC

AC = 8x - 20 & AB = 3x - 1

AC = AB + BC or 2AB

8x - 20 = 2(3x - 1)

8x - 20 = 6x - 2

subtract 6x form each side

2x - 20 = -2

add 20 to each side

2x - 20 + 20 = -2 + 20

2x = 18

x = 9

BC = 3x - 1

BC = 27 - 1

BC = 26

AC = 52

You might be interested in
Write the expression as either the sine, cosine, or tangent of a single angle.
olya-2409 [2.1K]
There exists a trigonometric identity which states that,
                  sin (A - B) = sin A cos B - cos A sin B
This is very similar to the given expression with A equal to 57° and B equal to 13°. The simplified form of the angle is,
                                 sin (57° - 13°) = sin 44°
5 0
3 years ago
Read 2 more answers
What are the coordinates of the point where the line y = -x +5 intersects the x-axis?
Alona [7]

The answer is (3,0)

<em>Sure hope this helps you</em>

<u />

<u />

4 0
2 years ago
A sales team estimates that the number of new phones they will sell is a function of the price that they set. They estimate that
USPshnik [31]

Answer:

$204

Step-by-step explanation:

The question is at what price x will the company maximize revenue.

The revenue function is:

R(x) = 4,080x-10x^2

The price for which the derivate of the revenue function is zero is the price the maximizes revenue:

R(x) = 4,080x-10x^2\\\frac{dR(x)}{dx}=0=4,080-20x\\x=\frac{4,080}{20}\\ x=\$204

The company will maximize its revenue when the price is $204.

7 0
3 years ago
If the graph of the following parabola is shifted one unit left and two units up,
Diano4ka-milaya [45]

Answer: (x+1)^2=12(y-2)

Step-by-step explanation:

5 0
3 years ago
PLZ I NEED THIS ASAP!! ILL GIVE YOU BRAINLIST!!
saul85 [17]

Answer:

yes

Step-by-step explanation:

Because all the numbers are the same

8 0
2 years ago
Read 2 more answers
Other questions:
  • Help please thanks.........
    5·2 answers
  • Two die are rolled simultaneously. what is the probability of getting a sum of at least 5?
    13·1 answer
  • Help for this equation :<br><br> a+5= -7<br><br> What is the answer?
    8·1 answer
  • WILL GIVE BRAINLIEST!!
    6·1 answer
  • How long is a rectangular field with a width of 3/5 mile and an area of 21/50 square mile?
    15·2 answers
  • What is 1+2+3+4+5+6+7+8+9
    15·2 answers
  • Somebody solve this please? ​
    7·2 answers
  • An equation with a graph that is a straight line is called
    13·1 answer
  • Find me the value of the variables. If the answers is not an integer, leave it in simplest radical form.
    14·1 answer
  • The cost for renting a truck for one day is $19.95 and has a rate of$0.50 per mile. Write a function rule to model the cost of r
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!