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
SVETLANKA909090 [29]
3 years ago
8

If AB = 2x–8 and AC = x+9, What is the length of BC?

Mathematics
2 answers:
Virty [35]3 years ago
4 0

Answer:

17

Step-by-step explanation:

2x-8=x+9

x=17

scZoUnD [109]3 years ago
3 0

ANSWER

BC=17 units

EXPLANATION

The given triangle is an isosceles triangle.

We have

AC=AB

This implies that,

x + 9 = 2x - 8

Group similar terms and simplify to get:

2x - x = 9 + 8

x = 17

Side BC is x units. But x=17

Therefore BC is 17 units.

You might be interested in
8/15(−23) in simplest form
Ilia_Sergeevich [38]
12 4/15 is the answer simplified
6 0
3 years ago
Read 2 more answers
Help me find the answer to this please
aksik [14]

Answer:

slope = -6 and y intercept=0

Step-by-step explanation:

3 0
3 years ago
Find the value of x.
galina1969 [7]

Answer:

its 90 bro whenever you see that square on a corner its always 90 degrees

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which of the following is not used to classify biomes?
Slav-nsk [51]

Answer:it’s B on edge bro

Step-by-step explanation:

6 0
3 years ago
3y-6=3x and y+2x=5 solve the system of linear equations by graphing PLEASE SHOW WORK​
Dmitry_Shevchenko [17]

Answer:

  (x, y) = (1, 3)

Step-by-step explanation:

The "work" of solving by graphing is typing the equations into a graphing calculator and highlighting the point of intersection.

___

If you're graphing these by hand, there are a couple of strategies you can use. One is to make use of the intercepts of the line. For each of these, you need to rearrange the equation to a suitable form.

  <u>3y -6 = 3x</u>

To put this into "intercept form", put the variable terms on one side of the equal sign and the constant on the other. Then divide by the constant and express the resulting variable coefficients as denominators.

  3x -3y = -6

  x/(-6/3) +y/(-6/-3) = 1

  x/(-2) + y/2 = 1 . . . . . . The x-intercept is -2; the y-intercept is 2.

Plot the intercept points and draw a line through them.

  <u>y +2x = 5</u>

The intercepts for this one are found by dividing by 5:

  x/(5/2) + y/5 = 1 . . . . . . The x-intercept is 2.5; the y-intercept is 5.

The other strategy you can use for this one is to rearrange the equation to slope-intercept form and make use of those numbers.

  y = -2x + 5

The y-intercept is 5 (as we already found above), and the slope is -2. That means the line drops 2 units for each unit it goes to the right. Apart from the y-intercept, other points on this line will be (1, 3), (2, 1), (3, -1).

  <u>Solution</u>

When you plot these lines, you find they intersect at (1, 3). That is the solution to the system of equations, the values of x and y that satisfy both equations.

7 0
3 years ago
Other questions:
  • HELP AGAIN............
    6·1 answer
  • Many people now turn to the Internet to get information on health-related topics. A research article used Flesch reading ease sc
    12·1 answer
  • Find the inverse of f(x)=1/(x-3)
    5·1 answer
  • What can you conclude about the intersection of a chord and the radius that bisects it
    14·1 answer
  • SELECILIU DUBITULUI
    6·1 answer
  • In a certain city, the street blocks have a uniform size of 90 meters north-south by 260 meters east-west. If a typical neighbor
    14·1 answer
  • In which set do all values make the inequality 5x+2&lt;10 true?
    12·1 answer
  • What is 9+12-4x15+3 divided by 2
    6·1 answer
  • Can you please help me answer these two please
    13·2 answers
  • Can someone solve m - 4m -6 please?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!