which of these cannot be used to find the circumference, №9514443, 24.07.2022 21:30

Biology

Starlings produce an average of five eggs in each clutch. if there are more than five, the parents cannot adequately feed the young. if there are fewer than five, predators may destroy the entire clutch. this is an example of disruptive selection. b. stabilizing selection. c. directional selection. d. none of the above. the occurrence of large or small beak sizes among seed crackers in the absence of medium sized beaks is an example of directional selection. b. stabilizing selection. c. disruptive selection. d. none of the above. a scientist measures

Step-by-step answer

P Answered by Specialist

7

Question number one:
The correct answer is B
In the case of the starlings and their offspring, we can observe the workings of a stabilizing selection. (Presented in image number one).
Stabilizing selection tends to eliminate the extremes and favor the medium value of a trait, in this case, the number of offspring.

Question number two:
The correct answer is C.
In this example, we can observe the disruptive selection.
This type of selection favors the extremes and eliminates the medium values. In our examples with seed crackers, this means that the birds with large or small beaks are favored and the ones with medium sized beaks are eliminated. ( see image number two)

Question number three:
The correct answer is 2cm.

As we have seen on the graph number one, stabilizing selection tends to favor the medium values of a trait.
In the case of the acorns, the stabilizing selection will favor the 2cm circumference acorn, and after 10 generations we could expect the most common cicrumference to stay 2cm, because it was favored by the natural selection.

Starlings produce an average of five eggs in each clutch. if there are more than five, the parents c

Biology

Starlings produce an average of five eggs in each clutch. if there are more than five, the parents cannot adequately feed the young. if there are fewer than five, predators may destroy the entire clutch. this is an example of disruptive selection. b. stabilizing selection. c. directional selection. d. none of the above. the occurrence of large or small beak sizes among seed crackers in the absence of medium sized beaks is an example of directional selection. b. stabilizing selection. c. disruptive selection. d. none of the above. a scientist measures

Step-by-step answer

P Answered by Master

7

Question number one:
The correct answer is B
In the case of the starlings and their offspring, we can observe the workings of a stabilizing selection. (Presented in image number one).
Stabilizing selection tends to eliminate the extremes and favor the medium value of a trait, in this case, the number of offspring.

Question number two:
The correct answer is C.
In this example, we can observe the disruptive selection.
This type of selection favors the extremes and eliminates the medium values. In our examples with seed crackers, this means that the birds with large or small beaks are favored and the ones with medium sized beaks are eliminated. ( see image number two)

Question number three:
The correct answer is 2cm.

As we have seen on the graph number one, stabilizing selection tends to favor the medium values of a trait.
In the case of the acorns, the stabilizing selection will favor the 2cm circumference acorn, and after 10 generations we could expect the most common cicrumference to stay 2cm, because it was favored by the natural selection.

Starlings produce an average of five eggs in each clutch. if there are more than five, the parents c

Mathematics

A circle has a circumference of 2 pi cm. Which statement about the circumference and area is true? A comparison of the area and circumference is not possible since the area cannot be determined. The numerical values of the circumference and area of the circle are equal. The numerical value of the circumference is greater than the numerical value of the area. The numerical value of the circumference is less than the numerical value of the area.

Step-by-step answer

P Answered by PhD

103

Third option: The numerical value of the circumference is greater than the numerical value of the area.

Step-by-step explanation:

The area of a circle can be calculated with this formula:

$A=\pi r^2$

Where "r" is the radius of the circle.

The circumference of a circle can be calculated with this formula:

$C=2\pi r$

Where "r" is the radius of the circle.

In this case you know that:

$C=2\pi \ cm$

Then, if you subsitute this value into the formula $C=2\pi r$ and you solve for "r", you get that the radius of the circle is:

$2\pi \ cm=2\pi r\\\\r=\frac{ 2\pi \ cm}{2\pi} \\\\r=1\ cm$

Then, substituting the radius into the formula for calculate the area of a circle adn evaluating, you get that its area is:

$A=\pi (1\ cm)^2\\\\A=\pi \ cm^2$

Based on the obtained, you can identify that:

$2\pi \pi$

Therefore, the numerical value of the circumference is greater than the numerical value of the area.

Mathematics

a circle has a circumference of 2 pi cm. which statement about the circumference and area is true? a. comparison of the area and circumference is not possible since the area cannot be determined. b.the numerical values of the circumference and area of the circle are equal. c.the numerical value of the circumference is greater than the numerical value of the area. d.the numerical value of the circumference is less than the numerical value of the area. !

Step-by-step answer

P Answered by Specialist

The numerical value of the circumference is greater than the numerical value of the area

Step-by-step explanation:

Verify each statement

case A) Comparison of the area and circumference is not possible since the area cannot be determined.

The statement is False

Because

The area can be determined, since knowing the circumference, I can calculate the radius and with the radius I can know the area.

case B) The numerical values of the circumference and area of the circle are equal

The statement is False

Because

The circumference is equal to $C=2\pi \ cm$

Find the radius

we know that

$C=2\pi r$

substitute the given values

$2\pi=2\pi r$

$r=1\ cm$

Find the area

$A=\pi r^{2}$

substitute the value of radius

$A=\pi (1)^{2}$

$A=\pi\ cm^{2}$

therefore

$2\pi \neq \pi$

case C) The numerical value of the circumference is greater than the numerical value of the area

The statement is True

because

Compare the numerical value

$2\pi \pi$

see the case B) procedure

case D) The numerical value of the circumference is less than the numerical value of the area

The statement is False

Because, the numerical value of the circumference is greater than the numerical value of the area

see the case B) procedure

Mathematics

A circle has a circumference of 2 pi cm. Which statement about the circumference and area is true? A comparison of the area and circumference is not possible since the area cannot be determined. The numerical values of the circumference and area of the circle are equal. The numerical value of the circumference is greater than the numerical value of the area. The numerical value of the circumference is less than the numerical value of the area.

Step-by-step answer

P Answered by PhD

103

Third option: The numerical value of the circumference is greater than the numerical value of the area.

Step-by-step explanation:

The area of a circle can be calculated with this formula:

$A=\pi r^2$

Where "r" is the radius of the circle.

The circumference of a circle can be calculated with this formula:

$C=2\pi r$

Where "r" is the radius of the circle.

In this case you know that:

$C=2\pi \ cm$

Then, if you subsitute this value into the formula $C=2\pi r$ and you solve for "r", you get that the radius of the circle is:

$2\pi \ cm=2\pi r\\\\r=\frac{ 2\pi \ cm}{2\pi} \\\\r=1\ cm$

Then, substituting the radius into the formula for calculate the area of a circle adn evaluating, you get that its area is:

$A=\pi (1\ cm)^2\\\\A=\pi \ cm^2$

Based on the obtained, you can identify that:

$2\pi \pi$

Therefore, the numerical value of the circumference is greater than the numerical value of the area.

Mathematics

a circle has a circumference of 2 pi cm. which statement about the circumference and area is true? a. comparison of the area and circumference is not possible since the area cannot be determined. b.the numerical values of the circumference and area of the circle are equal. c.the numerical value of the circumference is greater than the numerical value of the area. d.the numerical value of the circumference is less than the numerical value of the area. !

Step-by-step answer

P Answered by Specialist

The numerical value of the circumference is greater than the numerical value of the area

Step-by-step explanation:

Verify each statement

case A) Comparison of the area and circumference is not possible since the area cannot be determined.

The statement is False

Because

The area can be determined, since knowing the circumference, I can calculate the radius and with the radius I can know the area.

case B) The numerical values of the circumference and area of the circle are equal

The statement is False

Because

The circumference is equal to $C=2\pi \ cm$

Find the radius

we know that

$C=2\pi r$

substitute the given values

$2\pi=2\pi r$

$r=1\ cm$

Find the area

$A=\pi r^{2}$

substitute the value of radius

$A=\pi (1)^{2}$

$A=\pi\ cm^{2}$

therefore

$2\pi \neq \pi$

case C) The numerical value of the circumference is greater than the numerical value of the area

The statement is True

because

Compare the numerical value

$2\pi \pi$

see the case B) procedure

case D) The numerical value of the circumference is less than the numerical value of the area

The statement is False

Because, the numerical value of the circumference is greater than the numerical value of the area

see the case B) procedure

Mathematics

A circle has a diameter of 3 meters. Which statement about the circumference and area is true? A.) A comparison of the area and circumference is not possible since the area cannot be determined. B.) The numerical value of the circumference and area are equal. C.) The numerical value of the circumference is greater than the numerical value of the area. D.) The numerical value of the circumference is less than the numerical value of the area. Test is on edge 2020

Step-by-step answer

P Answered by Master

2

C

Step-by-step explanation:

circumference is pi times diameter

pi times 3 is 9.42

area is pi times radius squared

radius is 1.5

1.5^2 is 2.25

pi times 2.25 is 7.06

Mathematics

A circle has a diameter of 6 meters. Which statement about the circumference and area is true? A comparison of the area and circumference is not possible since the area cannot be determined. The numerical value of the circumference and area are equal. The numerical value of the circumference is greater than the numerical value of the area. The numerical value of the circumference is less than the numerical value of the area.

Step-by-step answer

P Answered by Specialist

27

The numerical value of the circumference is greater than the numerical value of the area.

Step-by-step explanation:

This has already been answered

Mathematics

A circle has a diameter of 3 meters. Which statement about the circumference and area is true? A comparison of the area and circumference is not possible since the area cannot be determined. The numerical value of the circumference and area are equal. The numerical value of the circumference is greater than the numerical value of the area. The numerical value of the circumference is less than the numerical value of the area.

Step-by-step answer

P Answered by Specialist

57

The numerical value of the circumference is greater than the numerical value of the area.

Step-by-step explanation:

Mathematics

Acircle has a diameter of 3 meters. which statement about the circumference and area is true? 1)a comparison of the area and circumference is not possible since the area cannot be determined. 2)the numerical value of the circumference and area are equal. 3)the numerical value of the circumference is greater than the numerical value of the area. 4)the numerical value of the circumference is less than the numerical value of the area.

Step-by-step answer

P Answered by Master

3)The numerical value of the circumference is greater than the numerical value of the area.

Step-by-step explanation:

Given : Diameter of circle 2r = 3 meters

⇒ r = $\frac{3}{2}$ = 1.5 meters

Circumference of circle= $2\pi\ r$

$=2\times3.24\times1.5=9.42$ meters

Area of circle= $\pi\ r^2$

$=3.14(1.5)^2=3.14\times2.25=7.065\ m^2$

Clearly the numerical value of the circumference is greater than the numerical value of the area.

which of these cannot be used to find the circumference of a circle

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