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
Genrish500 [490]
3 years ago
5

(50 Points)

Mathematics
1 answer:
jeyben [28]3 years ago
6 0

Answer:

(16/9)pi

Step-by-step explanation:

Where we firstly convert our angle at the centre(O) into radians

40/180 × pi = (2/9)pi

;Then Length of arc AB = radius × angle at O in radians

Arc AB = 8 × (2/9)pi

;Length AB = (16/9)pi

You might be interested in
Find the midpoint between A and B, given that A=(-1,5) and B=(-3,-7)
Kamila [148]
Hello here is a solution :
<span> midpoint between A and B,is :C( (Xa+xb)/2; (ya+yb)/2)
C( (-1-3)/2;(5-7)/2)
C(-2 ; -1)</span>
6 0
3 years ago
Find the exact value of sec theta if csc theta = -4/3 and the terminal side of theta lies in quadrant III
GREYUIT [131]

Answer:

-4 sqrt(7)/7

Step-by-step explanation:

csc theta = -4/3

csc theta = hypotenuse / opposite side

hypotenuse = 4  

opposite  = 3

Using the pythagorean theorem

a^2 + b^2 = c^2

3^2 + b^2 = 4^2

9+b^2 = 16

b^2 = 16-9

b^2 = 7

Taking the square root

sqrt(b^2) = sqrt(7)

b = sqrt(7)

We are in the third quadrant so only tan  and cot are positive

that means the x and y values are "negative"  so a = -3 and b = - sqrt(7)

sec theta = hypotenuse / adjacent

                = 4/ - sqrt(7)

rationalizing  

                   -4 sqrt(7)/ sqrt(7)* sqrt(7)

                = -4 sqrt(7)/7

           

3 0
2 years ago
Least to greatest<br><br>35%, 32/100, 1/3, .305, 3/10
Goryan [66]

Answer: 3/10 , 32/100 , 1/3 , 35% , 305

Step-by-step explanation:

1. Change 3/10 to a decimal

= 0.3

2. change 32/100 to a decimal

=0.32

3. Change 1/3 to a decimal

=0.3

4. Order and Done !

6 0
3 years ago
Read 2 more answers
p varies jointly as q and the square of r, and p = 200 when q = 2 and r = 3. Find p when q = 5 and r= 2.
Margarita [4]

Step-by-step explanation:

If a variables varies jointly, we can just divide it by the other variables in relation to it.

For example, since p variables jointly as q and square of r, then

\frac{p}{q {r}^{2} }  = k

where k is a constant

First, let find k. Substitute p= 200

q= 2, and r=3.

\frac{200}{2(3) {}^{2} }  = k

\frac{200}{18}  = k

\frac{100}{9}  = k

Now, since we know our constant, let find p.

\frac{p}{q {r}^{2} }  =  \frac{100}{9}

Q is 5, and r is 2.

\frac{p}{5( {2}^{2}) }  =  \frac{100}{9}

\frac{p}{20}  =  \frac{100}{9}

p =  \frac{2000}{9}

3 0
1 year ago
Pls help<br> will mark brainliest
yanalaym [24]

Answer:

1.93433

Step-by-step explanation:

Since all triangles have an interior angle sum of 180, the second angle is 45. this also means that x and y are equal. Using the pythagorean theorem, we can produce the equation 2\sqrt{14} = 2x^2. dividing both sides by two we get x^2= \sqrt{14}. when we take the square root of root 14 we get 1.934335

4 0
2 years ago
Other questions:
  • Please explain me and tell me the right answer.
    5·1 answer
  • 15 POINTS!
    9·1 answer
  • The city mayor wants to use the reserved section of a rectangular park for gardening lessons conducted by the city public school
    11·2 answers
  • Find all the real square roots of -9/16. A) no real root B) -3/4 C) -3/4 and 3/4 D) 81/256
    9·2 answers
  • Mary has 3000 raffle tickets . The tickets will be sold by 8 different classes. How many groups of raffle tickets are given to e
    6·1 answer
  • What is the positive solution of x2 – 36 = 5x?
    8·1 answer
  • Please can someone help me??? Please
    8·1 answer
  • Is this a function pls help ASAP
    15·1 answer
  • Rectangles
    7·2 answers
  • Helen wants to have cake for her party. She needs 1 cake for every 8 people. Which expression helps her decide how many cakes to
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!