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
Dennis_Churaev [7]
2 years ago
10

Points A, B, and C are collinear. Point B is between A and C. Find the length indicated.​

Mathematics
1 answer:
Hatshy [7]2 years ago
8 0

Answer:

AB=1

Step-by-step explanation:

Colinear means all points are on the same line. We need to find the measure of AB.

Using the segment addition postulate,

ab+bc=ac

Subsitue this for our known values

2x + 15 + 9 = x + 17

Solve for x

2x + 24 = x + 17

x + 24 = 17

x =  - 7

Plug this in for AB

2( - 7) + 15 = 1

You might be interested in
What times what is 448
Andrew [12]
The factors of 448 include: <span>1,2,4,7,8,14,16,28,32,56,64,112,224,448</span>
5 0
3 years ago
218,457 to the nearest hundred thousands
Tomtit [17]
200,000 because the numbers in the middle are low
8 0
2 years ago
In an arithmetic sequence, a17 = -40 and
Viktor [21]

Answer:

Tn = 2Tn-1 - Tn-2

Step-by-step explanation:

Before we can generate the recursive sequence, we need to find the nth term of the given sequence.

nth term of an AP is given as:

Tn = a+(n-1)d

If a17 = -40

T17 = a+(17-1)d = -40

a+16d = -40 ...(1)

If a28 = -73

T28 = a+(28-1)d = -73

a+27d = -73 ...(2)

Solving both equations simultaneously using elimination method.

Subtracting 1 from 2 we have:

27d - 16d = -73-(-40)

11d = -73+40

11d = -33

d = -3

Substituting d = -3 into 1

a+16(-3) = -40

a - 48 = -40

a = -40+48

a = 8

Given a = 8, d = -3, the nth term of the sequence will be

Tn = 8+(n-1) (-3)

Tn = 8+(-3n+3)

Tn = 8-3n+3

Tn = 11-3n

Given Tn = 11-3n and d = -3

Tn-1 = Tn - d... (3)

Tn-1 = 11-3n +3

Tn-1 = 14-3n

Tn-2 = Tn-2d...(4)

Tn-2 = 11-3n-2(-3)

Tn-2 = 11-3n+6

Tn-2 = 17-3n

From 3, d = Tn - Tn-1

From 4, d = (Tn - Tn-2)/2

Equating both common difference

(Tn - Tn-2)/2 = Tn - Tn-1

Tn - Tn-2 = 2(Tn - Tn-1)

Tn - Tn-2 = 2Tn-2Tn-1

2Tn-Tn = 2Tn-1 - Tn-2

Tn = 2Tn-1 - Tn-2

The recursive formula will be

Tn = 2Tn-1 - Tn-2

5 0
3 years ago
Read 2 more answers
From a point 18 feet from the base of a tower, a wire is stretched to an attachment 40 feet up the tower. A right triangle with
Tamiku [17]
To find the length of the wire, use the Pythagorean theorem

a^2 + b^2 = c^2
18^2 + 40^2 = c ^2
324 + 1600 = c^2
1924 = c^2
44 = c

The wire is approximately 44 feet.
8 0
3 years ago
Write the explicit formula for the geometric sequence represented by the recursive formula. a1 = 11 an = 3 · an-1 A) an = 11 · 3
lozanna [386]
C. an= 11 * 3n-1. have funnnnn
8 0
3 years ago
Read 2 more answers
Other questions:
  • Algebra graph question
    13·1 answer
  • 2ம<br>P-* =+ எனின் P++ 0gm​
    13·1 answer
  • Simplify -3a - 3 (7a+2)​
    13·2 answers
  • What is the range of y=4^x
    8·2 answers
  • Help please!!!! ty :)
    11·2 answers
  • a card is drawn at random from a pack of 52 playing cards. find the probability tht the card drawn is neither an ace nor a king
    13·1 answer
  • What is the approximate length of AB?
    9·1 answer
  • Can someone like help with this pleasee
    8·1 answer
  • 5.
    12·1 answer
  • What property is shown below <br> if q=r and r=s, then q=s
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!