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dezoksy [38]
3 years ago
9

The circumference of the inner circle is 66 ft. The distance between the inner circle and the outer circle is 44 ft. By how many

feet is the circumference of outer circle greater than the circumference of the inner​ circle? Use 22/7 for PI.
Mathematics
1 answer:
Ray Of Light [21]3 years ago
6 0

Answer:

  276 4/7 ft

Step-by-step explanation:

Let r1 represent the radius of the inner circle. Then its circumference in feet is ...

  C = 2πr

  66 = 2π(r1)

If the radius of the outer circle is (r1 +44), then its circumference is ...

  C = 2π(r1 +44) = 2π(r1) +2π(44)

  C = 66 +88π

Then the difference in the circumferences is ...

  (66 +88π) - (66) = 88π

Using the given value of π, the difference in circumferences is ...

  (88 ft)(22/7) = 1936/7 ft = 276 4/7 ft

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the equation a=1/2(b1+b2)h can be used to determine the area, a, of a trapezoid with height, h, and base lengths, b1 and b2. whi
galina1969 [7]

Answer:

b₁ = (2a – b₂h)/h; b₁ = (2a)/h – b₂; h = (2a)/(b₁ + b₂)

Step-by-step explanation:

A. <em>Solve for b₁ </em>

          a = ½(b₁ + b₂)h        Multiply each side by 2

        2a = (b₁ + b₂)h           Remove parentheses

        2a = b₁h + b₂h           Subtract b₂h from each side

2a - b₂h = b₁h                    Divide each side by h

         b₁ = (2a – b₂h)/h     Remove parentheses

         b₁ = (2a)/h – b₂

B. <em>Solve for h </em>

2a = (b₁ + b₂)h     Divide each side by (b₁ + b₂)

 h = (2a)/(b₁ + b₂)

5 0
3 years ago
Read 2 more answers
PLEASE HELPP Divide 24 ÷ -3 drag and drop the correct number into the box to complete the sentence
nikklg [1K]

Option A: -8 is the right answer

Step-by-step explanation:

In order to find the quotient of a divided by b is solved as:

a/ b = a * \frac{1}{b}

the answer is the quotient

Given

24 ÷ -3

It will be simplified as:

24 * \frac{1}{-3} = -8

The quotient is -8

Hence,

Option A: -8 is the right answer

Keywords: Quotient, remainder

Learn more about division at:

  • brainly.com/question/9510228
  • brainly.com/question/9443926

#LearnwithBrainly

3 0
4 years ago
OX and OY are two straight lines which intersect at an acute angle of 60°. OX = 4.5cm and OY = 5cm . The point M is on OX such t
Neko [114]

Therefore the point P is at 3.46 cm from O and it lies on the angle bisector of ∠XOY

<h3>What is an Angle Bisector ?</h3>

The ray that bisects the angle into half is called Angle Bisector.

It is given that ∠XOY = 60 degree

the length of OX = 4.5 cm

OY =5 cm

The point M is on OX such that

OM = 2 MX

so The M is at 3 cm from O

The point P lies in the acute angle such that the distance between point P and OX and OY is always same and at 3 cm from M

According to the angle bisector theorem converse states that if a point is in the interior of an angle and is at equal distance from the sides  then it lies on the bisector of that angle.

As it can be seen from the image that a point equidistant from the rays , at 3 cm from M will be at

By Pythagoras Theorem

3² +3² = OP²

OP = 2\sqrt{3} = 3.46 cm from O

To know more about Angle Bisector

brainly.com/question/12896755

#SPJ1

4 0
2 years ago
Find m Note that m 57.
RSB [31]

Answer:

51*

Step-by-step explanation

I believe this correct only because 51 + <B + <A=180*

Because of that we will make <B equal to <C

Hope this helps!

6 0
3 years ago
I NEED HELP PLEASE 30 points
kenny6666 [7]
(2, 4) is the correct answer
8 0
3 years ago
Read 2 more answers
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