Both circle A and circle B have a central angle measuring 135°. The ratio of the radius of circle A to the radius of circle B is 4/7. If the length of the intercepted arc for circle A is 1/2π, what is the length of the intercepted arc for circle B?

Answers

Answer 1
Answer: Let 
rA--------> radius of the circle A
rB-------> radius of the circle B
LA------> the length of the intercepted arc for circle A
LB------> the length of the intercepted arc for circle B

we have that
rA/rB=4/7--------> rB/rA=7/4
LA=(1/2)π

we know that
if Both circle A and circle B have a central angle , the ratio of the radius of circle A to the radius of circle B is equals to the ratio of the length of circle A to the length of circle B
rA/rB=LA/LB--------> LB=LA*rB/rA-----> [(1/2)π*7/4]----> 7/8π

the answer is
the length of the intercepted arc for circle B is 7/8π

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Complete the statement: Cosine is the reciprocal of the ___________ ratio.

MODELING REAL LIFE Bowling alley A charges $3.75 to rent shoes and $4 per game. Bowling alley B charges $2.50 torent shoes and $4.50 per game.
a. For what numbers of games is the total cost, including a pair of rental shoes, less at bowling alley A? at bowling alley B?
Bowling alley A:
Bowling alley B:
or more games
or
games
b. Bowling alley A increases the cost per game by $0.50. How does this affect your answer in part (a)? Explain.o

Answers

Using linear functions, it is found that:

a) The cheaper costs are given as follows:

  • Bowling alley A: 3 or more games.
  • Bowling alley B: 1 or 2 games.

b) Due to the same cost per game and higher cost for the pair of shoes, bowling alley A will never be cheaper than bowling alley B.

What is a linear function?

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For this problem, we have that:

  • The cost to rent shoes is the intercept.
  • The cost per game is the slope.

Hence the cost functions are given as follows:

  • A(x) = 3.75 + 4x.
  • B(x) = 2.5 + 4.5x.

The costs are equal when:

A(x) = B(x)

3.75 + 4x = 2.5 + 4.5x

0.5x = 1.25

x = 1.25/0.5

x = 2.5.

Hence the cheaper costs are given as follows:

  • Bowling alley A: 3 or more games.
  • Bowling alley B: 1 or 2 games.

Alley B has the lower initial cost due to the lower cost for the pair of shoes.

For item b, if we increase the cost per game by $0.50 for alley A, we have that:

A(x) = 4.5x + 3.75.

Hence:

Due to the same cost per game and higher cost for the pair of shoes, bowling alley A will never be cheaper than bowling alley B.

More can be learned about linear functions at brainly.com/question/24808124

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Someone tell me What 2x2 is

Answers

Answer:

\boxed{4}

Step-by-step explanation:

2 * 2 = 4

2 × 1 = 2

2 × 2 = 4

2 × 3 = 6

2 × 4 = 8

2 × 5 = 10

2 × 6 = 12

2 × 7 = 14

2 × 8 = 16

2 × 9 = 18

2 × 10 = 20

2 × 11 = 22

2 × 12 = 24

Hope this helped you!

Answer:

4 is the answer

are u asking multiply of 2 by 2

Step-by-step explanation:

2 multiply 2 = 4

GEOMETRY. PLS HELP ASAP.Find the surface area of the sphere with the given dimension. Leave your answer in terms of pi . radius of 60 m
A. 3,600 pi m^2
B. 7,200 pi m^2
C. 14,400 pi m^2
D. 1,800 pi m^2

Answers

surface area=4pir^2
r=60
SA=4pi60^2
SA=4pi3600
SA=14400pi


answer is C
Surface area formula of a Sphere:
S.A = 4\pi
       = 4 × \pi × (60)²
       = 4 × \pi × 3600
       = 14,400\pi

Answer is C. 14,400\pi

What is 5,339x6 equal to in this case

Answers

32034 

All I had to do was multiply. Is there more to the problem?

There are 80
students in a speech contest. Yesterday,



1

4
of them gave their speeches. Today,



2

5
of the remaining students gave their speeches. How many students still haven't given their speeches?

Answers

yesterday, 1/4 of 80 =20 gave their speeches, so there are 80-20=60 students left.
Today, 2/5 of 60=24 students gave their speeches, so there are 60-24=36 students who still haven't give their speeches
another way to think of it is 80*(1- 1/4)*(1- 2/5)=80*(3/4)*(3/5)=36

Final answer:

To find the number of students who haven't given their speeches, subtract the number of students who have given their speeches from the total number of students. Yesterday, 14 students gave their speeches and today, 25 more students gave their speeches. So, there are 41 students who still haven't given their speeches.

Explanation:

To find the number of students who haven't given their speeches, we need to subtract the number of students who have given their speeches from the total number of students.

Yesterday, 14 students gave their speeches, so there are 80 - 14 = 66 students remaining.

Today, 25 students gave their speeches, so there are 66 - 25 = 41 students who still haven't given their speeches.

Learn more about Number of students remaining here:

brainly.com/question/37834213

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Which value is equivalent to 8.7% written as a decimal? A. 0.087 B. 0.87 C. 8.7 D. 87.0

Answers

To change any percent into a decimal,
move the decimal point two places this way  <=== .

       8.7 %  ==>  0.087
8.7 : 100= 0.087
A is correct