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
vodka [1.7K]
3 years ago
7

B is between A and C. AB = 3x, BC = 2x + 7, AC = 42 a) X = b)AB = c)BC=

Mathematics
1 answer:
ryzh [129]3 years ago
5 0

Answer: x=7

               ab=21

               bc=14

Step-by-step explanation:

ab=3x

bc=2x±7

ac=42

3x±2x±7=42

5x±7=42

5x=42-7

5x=35

to get the value of x you divide 35 by 5x

35÷5x=7

so the value of x is 7

ab=3x

x=7

3x=7×3x

7×3=21

x=7

2x=7×2x

2×7=14

You might be interested in
What is the difference between a rhombus and a HURRY 5 MINUTES LEFT!!
Alik [6]

Answer:

A. rhombus is a parallelogram.

5 0
3 years ago
Pleasee help me, I don’t get it
Aleks [24]

Answer:

x = 4 sqrt(5)

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

8^2 + x^2 = 12^2

64+ x^2 =144

Subtract 64 from each side

x^2 = 144-64

x^2 =80

Take the square root of each side

sqrt(x^2) = sqrt(80)

x = sqrt(16*5)

x = 4 sqrt(5)

8 0
2 years ago
If s= the number of stamps that sara has, which mathematical sentence expresses the information?
Monica [59]
S*x!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
7 0
3 years ago
Help me please please
Anna007 [38]

Answer:

8/5 or 1.6

Step-by-step explanation:

Rise over run.

5 0
3 years ago
Choose all that apply:
mr Goodwill [35]

Answer:

Step-by-step explanation:

<em>1.</em> <em>Circle A and circle A', have the same circumference.</em> <em>(Yes)</em>

<em>2.</em> <em>The radii of circle A and circle A', have the same lengths.</em> <em>(Yes)</em>

3. .... (No)

4. ... (No)

8 0
3 years ago
Other questions:
  • TIMED, need the answer
    8·2 answers
  • The slope of any line perpendicular to , where A(0, -3) and B(4, 9) are two points on the line, is m =
    8·1 answer
  • there are different number of bikes tricycles in tandem bikes in the shop there are a total of 144 front steering handlebars 378
    11·1 answer
  • What is the slope of the line?
    9·2 answers
  • The top speed of a wildebeest is 64 km/h and the top speed of a zebra is 64.4 km/h. How much faster is a zebra in feet per secon
    8·2 answers
  • Find the distance between each pair of points (8,5) ,(-1,3)
    6·2 answers
  • The difference of the two numbers is 1.Their sum is 23.find the numbers
    10·1 answer
  • (a) The perimeter of a rectangular parking lot is 370 m.
    13·1 answer
  • Math help please. Which rule explains why these triangles are congruent? ( A). ASA (B.) AAS (C.) SAS ( D.) These triangles can n
    11·1 answer
  • For the given functions f and g, complete parts (a)-(h). For parts (a)-(d), also find the domain.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!