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
m_a_m_a [10]
3 years ago
13

Y - Circle

Mathematics
1 answer:
Kaylis [27]3 years ago
6 0

Answer:

9cm

Step-by-step explanation:

making perpendicular "A" from center "O"

we get,OA=4cm(half of 8cm)

Now,

In triangle POA,

h^2=p^2+b^2

5^2=4^2+b^2

25=16+b^2

9=b^2

b=3cm

PA=3cm

hence,length of chords=3+3=9cm

You might be interested in
HELPPPPPPPPPP<br> Please i don't know what to do
-BARSIC- [3]
That’s a rubric tho…
6 0
2 years ago
Read 2 more answers
Which strategie would eliminate a variable in the system of equations? −x+6y=8 7x−y=−2 ​
NeX [460]

Answer:

  substitution (or addition)

Step-by-step explanation:

A simple strategy for this system is to use substitution. The first equation is easily solved for x, so you could substitute that into the second equation:

  x = 6y -8

  7(6y -8) -y = -2 . . . . . x variable eliminated

__

The second equation is easily solved for y, so you could substitute that into the first equation.

  y = 7x +2

  -x +6(7x +2) = 8 . . . . . y-variable eliminated

__

The "addition" method is always a good way to eliminate a variable.

When the coefficient of a variable in one equation is a divisor of the coefficient of that variable in the other equation, a simple multiplication and addition will do.

To make the coefficient of x in the first equation the opposite of the coefficient of x in the second, multiply the first equation by 7. Adding that result to the second equation will eliminate x:

   7(-x +6y) +(7x -y) = 7(8) +(-2)

  42y -y = 56 -2 . . . . . . x-variable eliminated

Likewise, the second equation can be multiplied by 6 and added to the first to eliminate the y-variable:

  (-x +6y) +6(7x -y) = (8) +6(-2)

  -x +42x = -4 . . . . . . . . y-variable eliminated

__

It is often the case that using either substitution or "addition" requires about the same amount of work.

Here, the solutions are (x, y) = (-4/41, 54/41).

3 0
3 years ago
I’ll give brainliest:) help thanks
liubo4ka [24]

Answer:

A

hope this helps

have a good day :)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the perimeter of polygon ABCDEF
MissTica
47 is the perimeter
3 0
3 years ago
Read 2 more answers
7a-4=3(a+9)+4a plz help
sweet [91]
7a-4=3a+27+4a
7a-4=7a+27

you sure you type the right question?
7 0
3 years ago
Other questions:
  • What is the ratio for the volumes of two similar Pyramids, given that the ratio of the edge lengths is 8:3?
    7·2 answers
  • A right rectangular prism is shown.
    14·1 answer
  • What is 10 time 10 ?
    15·2 answers
  • Find the volume of a pyramid with a square base, where the perimeter of the base is 5\text{ in}5 in and the height of the pyrami
    5·1 answer
  • Tristen is packing lunch boxes for the school trip. Each lunch box consists of 1 sandwich, 1 fruit, and 1 drink. Tristen can cho
    10·1 answer
  • A bank teller helps two customers.Omar takes 15$ withdraw,so his balance changes by -$15.Jake makes a $10 deposit,so his balance
    9·1 answer
  • Please help me (using trigonometry to find angle measures)
    11·1 answer
  • Jane and Sammie are making decisions about their bank accounts. Jane wants to deposit
    11·1 answer
  • Hello I would be very happy if you could solve this for me. Please help me.
    8·2 answers
  • Solve for x. <br> 8x - 2 = 3x + 5x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!