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
pashok25 [27]
3 years ago
13

Please help me i don’t understand

Mathematics
1 answer:
Bond [772]3 years ago
5 0

9514 1404 393

Answer:

  2. chord theorem; t = 10.5

  3. chord theorem; x = 5

Step-by-step explanation:

For both of these problems, the relevant theorem is the "intersecting chord theorem", also referred to as the "chord theorem." It tells you the product of the lengths of the parts of one chord is equal to the product of the lengths of the parts of the other chord.

2. 20t = 10·21

  t = 210/20 . . . . divide by 20

  t = 10.5 . . . . . . . simplify

__

3. 10(x +4) = 15(x +1)

  10x +40 = 15x +15 . . . . . eliminate parentheses

  25 = 5x . . . . . . . . . . . . . subtract 10x+15

  5 = x . . . . . . . divide by 5

You might be interested in
Write an equation in standard form for the line that passes through the given points. (2, -3), (4, -7)
Natalka [10]

Answer:

y=4/2 x+b

Step-by-step explanation:

5 0
3 years ago
The expression
zhenek [66]
Ik people are still answering this but if you could plz put your problem horizontally it helps us a lot and it helps you by making the problem easier to read more people are willing to do it
4 0
3 years ago
A number to the 9th power divided by the same number to the 6th power equals 512. What is the
joja [24]
The answer is 5


explanation:
Let's call our number
a
. The statement written as a formula is
a
12
a
9
=
125
We can simplify the fraction, and we have
a
3
=
125
To solve for
a
, take the third root of both sides:
a
=
(
125
)
1
3
=
5
5 0
4 years ago
Simplify the expression. Type your answer in the blank.<br> -
den301095 [7]
The abolute value of -13 is 13.
The negative value of 13 is -13.
Final answer: -13
3 0
4 years ago
Read 2 more answers
The width of a rectangle is (x-5) and the length is (x+2). What is the length and width of the rectangle if the area is 18 squar
Murrr4er [49]

Answer:

Length: 9

Width: 2

Step-by-step explanation:

Area = length × width

18 = (x - 5)(x + 2)

18 = x² - 5x + 2x - 10

x² - 3x - 28 = 0

x² - 7x + 4x - 28 = 0

x(x - 7) + 4(x - 7) = 0

(x - 7)(x + 4) = 0

x = 7, -4(not possible)

Length: 7+2 = 9

Width: 7-5 = 2

3 0
3 years ago
Read 2 more answers
Other questions:
  • Y = x2 - 3x -18<br> Solve for x.
    14·1 answer
  • HELP WILL MARK YOU BRAINLIEST NO GUESSES PLZ!!!!
    6·1 answer
  • The population of a town is 20,000. It decreases at a rate of 9% per year. In about how many years will the population be fewer
    5·2 answers
  • Help please i’m on a timer
    5·2 answers
  • What is 0.4 divided by 0.242? Divide and check your answer using multiplication. Show your work.
    9·2 answers
  • Which formula gives the x-coordinates of the maximum values for y = cos(x)?
    11·2 answers
  • An item is regularly priced at $67. It is now priced at a discount of 95% off the regular price.
    6·1 answer
  • Function: g(x) = 2x2 - 8
    13·1 answer
  • If two parents, one with brown eyes (a dominant trait) and the other with blue eyes (the recessive trait) produce one twin boy w
    10·1 answer
  • An event planner can set up 6 tables in 30 minutes. How many tables can the event planner set up in 4.5 hours?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!