Mathematics : asked on ultimatesaiyan

25.10.2020

Find the circumference Use 3.14 for TT 7 cm

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24.06.2023, solved by verified expert

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C= 2pi-r

=2 x 3.14 x 7

= 43.96 cm

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Mathematics

Find the circumference Use 3.14 for TT 7 cm

Step-by-step answer

P Answered by PhD

C= 2pi-r

=2 x 3.14 x 7

= 43.96 cm

Mathematics

Estimate the circumference. use 3.14 or 22/7 to approximate π. a. 18.75 cm b. 19.63 cm c. 37.5 cm d. 39.25 cm

Step-by-step answer

P Answered by Specialist

2

You have to plug in all the numbers to the circumference formula and solve!
circumference formula: $\pi d$ or $2 \pi r$

3.14(12.5) = ?
39.25

The answer is d. 39.25

Mathematics

Estimate the circumference. use 3.14 or 22/7 to approximate π. a. 18.75 cm b. 19.63 cm c. 37.5 cm d. 39.25 cm

Step-by-step answer

P Answered by Specialist

2

You have to plug in all the numbers to the circumference formula and solve!
circumference formula: $\pi d$ or $2 \pi r$

3.14(12.5) = ?
39.25

The answer is d. 39.25

Mathematics

1. what must be true about a circle with a circumference of 16 π? the radius is 16 the diameter is 16 the diameter is π the radius is π question 2 1. if the radius of circle p is 4, then the diameter is 4. circumference is 4 π. diameter is 8. circumference is 16 π. question 3 1. π is equal to 5.26. always equal to the radius of a circle. twice the diameter of a circle. a circle s circumference divided by its diameter. 1. if a circle has a center of r and a point on the circle labeled t, then rt is the diameter. a chord. the radius. twice the diameter.

Step-by-step answer

P Answered by Specialist

4

1. - B) the diameter is 16

2. - C.) diameter is 8

3. - D.) a circle's circumference divided by its diameter.

4. - C.) the radius.

5. - A.) 9.42

6. - D.) 16 inches or less.

7. - A.) π

8. - B.) 2 (3.14) π

9. - A.) 8

10. - B.) Perimeter

Hope this helps!

Mathematics

1. what must be true about a circle with a circumference of 16 π? the radius is 16 the diameter is 16 the diameter is π the radius is π question 2 1. if the radius of circle p is 4, then the diameter is 4. circumference is 4 π. diameter is 8. circumference is 16 π. question 3 1. π is equal to 5.26. always equal to the radius of a circle. twice the diameter of a circle. a circle s circumference divided by its diameter. 1. if a circle has a center of r and a point on the circle labeled t, then rt is the diameter. a chord. the radius. twice the diameter.

Step-by-step answer

P Answered by Specialist

4

1. - B) the diameter is 16

2. - C.) diameter is 8

3. - D.) a circle's circumference divided by its diameter.

4. - C.) the radius.

5. - A.) 9.42

6. - D.) 16 inches or less.

7. - A.) π

8. - B.) 2 (3.14) π

9. - A.) 8

10. - B.) Perimeter

Hope this helps!

Mathematics

Acircle has an area of 153.86 units2 and a circumference of 43.96 units. if the radius is 7 units, what can be said about the relationship between the area and the circumference? (use 3.14 for .) a. the ratio of the area to the circumference is equal to half the radius. b. the ratio of the area to the circumference is equal to twice the radius. c. the ratio of the area to the circumference is equal to the square root of the radius. d. the ratio of the area to the circumference is equal to the radius squared.

Step-by-step answer

P Answered by PhD

9

Option A. The ratio of the area to the circumference is equal to half the radius

Step-by-step explanation:

we know that

The area of a circle is equal to

$A=\pi r^{2}$

The circumference of a circle is equal to

$C=2\pi r$

The ratio of the area to the circumference is equal to

$\frac{A}{C}=\frac{\pi r^{2}}{2\pi r}$

Simplify

$\frac{A}{C}=\frac{r}{2}$

Verify

In this problem

$A=153.86\ units^{2}$

$C=43.96\ units$

$\frac{A}{C}=\frac{153.86}{43.96}=3.5\ units$

and $3.5\ units$ is equal to half the radius

therefore

The ratio of the area to the circumference is equal to half the radius

Mathematics

Acircle has an area of 153.86 units2 and a circumference of 43.96 units. if the radius is 7 units, what can be said about the relationship between the area and the circumference? (use 3.14 for .) a. the ratio of the area to the circumference is equal to half the radius. b. the ratio of the area to the circumference is equal to twice the radius. c. the ratio of the area to the circumference is equal to the square root of the radius. d. the ratio of the area to the circumference is equal to the radius squared.

Step-by-step answer

P Answered by PhD

9

Option A. The ratio of the area to the circumference is equal to half the radius

Step-by-step explanation:

we know that

The area of a circle is equal to

$A=\pi r^{2}$

The circumference of a circle is equal to

$C=2\pi r$

The ratio of the area to the circumference is equal to

$\frac{A}{C}=\frac{\pi r^{2}}{2\pi r}$

Simplify

$\frac{A}{C}=\frac{r}{2}$

Verify

In this problem

$A=153.86\ units^{2}$

$C=43.96\ units$

$\frac{A}{C}=\frac{153.86}{43.96}=3.5\ units$

and $3.5\ units$ is equal to half the radius

therefore

The ratio of the area to the circumference is equal to half the radius

Mathematics

3. match the following expressions or equations. 1. the sum of 12 and 3 times a number 2. sue s salary is $8.00 times the number of hours worked. 3. the perimeter of a square is 4 times the length of a side. 4. 2 less than 4 times a number 5. the product of m and 3 minus the product of n and 4 a. s = 8h b. 4n - 2 c. p = 4s d. 3m - 4n e. 12 + 3n 4. match the number on the left with the proper combination of number types on the right. 1. 5/4 2. sqrt 15 (sqrt stands for the square root of a number) 3. 15 4. zero 5. -10 a. real, rational, integer,

Step-by-step answer

P Answered by Specialist

1

3.
1 & E
2 & A
3 & C
4 & B
5 & D

4.
1 & E
2 & C
3 & A
4 & B
5 & D

5.
1. 3.002 is less than 3.02
2. -5/12 is greater than -7/12
3. 3/5 is equal to 0.6

10.
1. B
2. D
3. C
4. A

(Not 100% sure on those 4)

13.
The circumference is double the radius.
We can write this as r = C/3.14 x 2
3.14 x 2 = 6.28 and we know the circumference is 50.24
r = 50.24/6.28
r = 8

Mathematics

3. match the following expressions or equations. 1. the sum of 12 and 3 times a number 2. sue s salary is $8.00 times the number of hours worked. 3. the perimeter of a square is 4 times the length of a side. 4. 2 less than 4 times a number 5. the product of m and 3 minus the product of n and 4 a. s = 8h b. 4n - 2 c. p = 4s d. 3m - 4n e. 12 + 3n 4. match the number on the left with the proper combination of number types on the right. 1. 5/4 2. sqrt 15 (sqrt stands for the square root of a number) 3. 15 4. zero 5. -10 a. real, rational, integer,

Step-by-step answer

P Answered by Specialist

1

3.
1 & E
2 & A
3 & C
4 & B
5 & D

4.
1 & E
2 & C
3 & A
4 & B
5 & D

5.
1. 3.002 is less than 3.02
2. -5/12 is greater than -7/12
3. 3/5 is equal to 0.6

10.
1. B
2. D
3. C
4. A

(Not 100% sure on those 4)

13.
The circumference is double the radius.
We can write this as r = C/3.14 x 2
3.14 x 2 = 6.28 and we know the circumference is 50.24
r = 50.24/6.28
r = 8

Mathematics

A circle has an area of 153.86 units2 and a circumference of 43.96 units. If the radius is 7 units, what can be said about the relationship between the area and the circumference? (Use 3.14 for .)

Step-by-step answer

P Answered by PhD

2

Step-by-step explanation:

$\text{Circumference:}\\\\C=2\pi r\\\\\text{Area:}\\\\A=\pi r^2\\\\\dfrac{A}{C}=\dfrac{\pi r^2}{2\pi r}\qquad\text{cancel}\ \pi\ \text{and}\ r\\\\\dfrac{A}{C}=\dfrac{r}{2}\\\\\bold{The\ number\ of\ areas\ of\ a\ circle\ is}\ \dfrac{r}{2}\ \bold{larger\ than\ its\ circumference}.$

$\text{For a given area and circumference}:\\\\A=153.86,\ C=43.96,\ r=7\\\\\dfrac{A}{C}=\dfrac{153.86}{43.96}=3.5=\dfrac{7}{2}=\dfrac{r}{2}\\\\\dfrac{A}{C}=\dfrac{r}{2}$

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