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
dimulka [17.4K]
2 years ago
12

PLEASE HELP MEEEE WITH THIS !!!!!

Mathematics
1 answer:
Annette [7]2 years ago
4 0
To find the length of the arc AB, we can use the following equation:

a= \frac{1}{2} (y-x)

where a is the exterior angle, y is the arc furthest from the angle, and x is the arc nearest to the angle.

We know the value of a, but now x or y. However, we do know that x = 360 - y. We can use this information to find x (arc AB):

50 =  \frac{1}{2} (y - (360 - y))

50 =  \frac{1}{2} (2y - 360)

50 = y - 180

y = 230

If y = 230, then AB = 360 - 230:

360 - 230 = 130

The correct answer is 130.
You might be interested in
Write the equation in standard form. Identity the center and radius.<br> x² + y2 + 8x-4y-7=0
lorasvet [3.4K]

Answer:

equation;

(x + 4) {}^{2}  + (y - 2) {}^{2}  = 27

Center (-4,2)

Radius is

3 \sqrt{3}

Step-by-step explanation:

Since the x^2 and y^2 have the same coeffiecent this will be a circle in a form of

(x - h) {}^{2}  + (y - k)  {}^{2}  =  {r}^{2}

Where (h,k) is center

r is the radius

So first we group like Terms together

{x}^{2}  + 8x  +  {y}^{2}  - 4y - 7 = 0

Add 7 to both sides

{x}^{2}  + 8x +  {y}^{2}  - 4y = 7

( {x}^{2}  + 8x) +(  {y}^{2}  - 4y) = 7

Since the orginal form of the equation of the circle has a perfect square we need to complete the square for each problem

(\frac{8}{2} ) {}^{2}  = 16

and

( - \frac{4}{2} ) {}^{2}  = 4

so we have

{x}^{2}  + 8x + 16 +  {y}^{2}  - 4y + 4y = 7 + 16 + 4

{x}^{2}  + 8x + 16  +  {y}^{2}  - 4y + 4y = 27

(x + 4) {}^{2}  +  (y  - 2) {}^{2}  = 27

To find our center, h is -4 and k is 2

so the center is (-4,2)

The radius is

\sqrt{27}  = 3 \sqrt{3}

So the radius is 3 times sqr root of 3.

8 0
2 years ago
What is 2/9 simplified?
zavuch27 [327]
2/9 is already simplified but it’s decimal form is
_
0.2
4 0
2 years ago
If 3m = 12, what is the value of 6(m - 1)?
Bezzdna [24]
12/3=4 
so m=4

6x4=24
6x1=6

24-6=18
7 0
3 years ago
Read 2 more answers
Find a third-degree polynomial equation with rational coefficients that has roots -4 and 6 + i.
dolphi86 [110]

Answer:

x³ - 8x² - 11x + 148

Step-by-step explanation:

Given that x = 6 + i is a root then x = 6 - i is also a root

Complex roots occur as conjugate pairs.

The factors are therefore (x - (6 + i)) and(x - (6 - i))

Given x = - 4 is a root then (x + 4) is a factor

The polynomial is the product of the factors, that is

p(x) = (x + 4)(x - (6 + i))(x - (6 - i))

      = (x + 4)(x - 6 - i)(x - 6 + i)

      = (x + 4)((x - 6)² - i²)

      = (x + 4)(x² - 12x + 36 + 1)

      = (x + 4)(x² - 12x + 37) ← distribute

      = x³ + 4x² - 12x² - 48x + 37x + 148

      = x³ - 8x² - 11x + 148

 

3 0
3 years ago
If five notebooks cost $5.25 how much would 3 cost?
34kurt
3.15. Just find the unit rate which is 1.5 and multiply that by 3
6 0
3 years ago
Read 2 more answers
Other questions:
  • 10 1/8+(3 6/8+2 7/8) what does it equals
    7·1 answer
  • If x + y = 13 and y = 2, then which of the following is true according to the substitution property? Question 1 options: A) x +
    11·1 answer
  • How to solve algebra questions
    7·1 answer
  • Find all rational zeros of the function<br><br> h(x)=6x^3-41x^2-8x+7
    12·2 answers
  • A rectangle has a length of x and a width that is 8 units shorter than twice the length.
    7·1 answer
  • Find the value of x. <br> A.3 <br> B.4 <br> C.6 <br> D.8
    11·2 answers
  • Does anyone know how to do this one
    10·1 answer
  • Costom duty of 30 % is charged when electrical item are imported. If 9000 rupees has to be paid as customs duty when an item of
    15·1 answer
  • Could you help answer all these questions please I need it ASAP Its the PDF Pretty please
    9·2 answers
  • What is meaning of <br> 34+35= ?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!