help please and thank you.

Based on the information, it can be inferred that the difference in the circumference of the two circles is 6.31 cm.

To calculate the circumference of a circle we must apply the following formula:

According to the previous formula, we must replace R with the radius of each of the radii of both circles as shown below:

So, to find the difference of the circumferences of both circles we must subtract the smaller number (circumference of the small circle) from the larger number (circumference of the large circle).

According to the above, the difference of the circumferences would be 6.31 cm.

To calculate the area of the circle we must apply the following formula.

A =\(\pi r^{2}\)

r = radio del círculo.

According to the above, the radiO of both circles would be:

Additionally, to find the difference we must subtract these values:

Learn more about circles in: https://brainly.com/question/29142813

#SPJ1

Based on the information, it can be inferred that the difference in the circumference of the two circles is 6.31 cm.

How to calculate the circumference of a circle?

To calculate the circumference of a circle we must apply the following formula:

2R

R = Radius of the circle.

According to the previous formula, we must replace R with the radius of each of the radii of both circles as shown below:

21 = 6.28

22 = 12.59

So, to find the difference between the circumferences of both circles we must subtract the smaller number (circumference of the small circle) from the larger number (circumference of the large circle).

12.59 - 6.28 = 6.31

According to the above, the difference in the circumferences would be 6.31 cm.

How to calculate the area of the circle?

To calculate the area of the circle we must apply the following formula.

A =

r = radio del círculo.

According to the above, the radiO of both circles would be:

= 3.14

= 25.13

Additionally, to find the difference we must subtract these values:

25.13 - 3.14 = 21.99

Answer: I'm not sure if the percent signs are an error but the answer would be $0.11, if 55% is actually $55 then the answer is $11

Step-by-step explanation:

Step-by-step explanation:

(2x-3)² - (4x+1)(x − 4)

4x² - 12x + 9 - 4x² - 16x + x - 4

group like terms

4x² - 4x² - 12x+x+9-4

-11x + 5

Answer: look at the image for the answer and the explanation

Step-by-step explanation:

Answer:

D is the right choice and no you cannot fit the pizza inside the box.

Step-by-step explanation:

D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.

Answer:

I believe the answer is D.

Step-by-step explanation:

GOOGLE

Answer:

A

Step-by-step explanation:

The line starts at 24 and ends with 34. The box starts at 25 and 32. The line in the middle shows 31.

Answer:

a) 10.73%

b) 45.60%

c) 0.0094%

d) 54.4%

Step-by-step explanation:

The probability of one transistor being defective is equal the number of defective transistors over the total number of transistors

a)

The probability of the first one being defective is 4/24, and then the probability of the second one being defective is 3/23, because we have one less defective transistor. The probability of the third one being not defective is 20/22, and the fourth one not being defective is 19/21. We also multiply the final probability by a combination of 4 choose 2, because the defective transistors can be any 2 of the group of 4:

C(4,2) = 4! / (2! * 2!) = 6

P = 6 * (4/24) * (3/23) * (20/22) * (19/21) = 0.1073 = 10.73%

b)

Similar to the letter a), we have:

First one not defective: P = 20/24

Second one not defective: P = 19/23

Third one not defective: P = 18/22

Fourth one not defective: P = 17/21

P = (20/24) * (19/23) * (18/22) * (17/21) = 0.4560 = 45.60%

c)

First one defective: P = 4/24

Second one defective: P = 3/23

Third one defective: P = 2/22

Fourth one defective: P = 1/21

P = (4/24) * (3/23) * (2/22) * (1/21) = 0.000094 = 0.0094%

d)

If we want at least 1 defective, we just need to subtract 100% from the case where all 4 are not defective:

P = 1 - 0.4560 = 0.5440 = 54.4%

In this exercise we have to use the knowledge of probability to calculate each of the requested probabilities, so we can say that:

a) \(10.73\%\)

b) \(45.60\%\)

c) \(0.0094\%\)

d) \(54.4\%\)

a)The probability of the first one being defective is 4/24, and then the probability of the second one being defective is 3/23, because we have one less defective transistor. So the combination will be:

\(C(4,2) = 4! / (2! * 2!) = 6\\P = 6 * (4/24) * (3/23) * (20/22) * (19/21) = 0.1073 = 10.73%\)

b)So find the not defective, we have:

\(P = (20/24) * (19/23) * (18/22) * (17/21) = 0.4560 = 45.60%\)

c)So find the defective, we have:

\(P = (4/24) * (3/23) * (2/22) * (1/21) = 0.000094 = 0.0094%\)

d)We just need to subtract 100% from the case where all 4 are not defective:

\(P = 1 - 0.4560 = 0.5440 = 54.4%\)

See more about probability at brainly.com/question/743546

Answer:

E < F < G

Step-by-step explanation:

hope this helps

Answer:

y-intercept : 8

slope: -1/2

equation:   \(y = -\dfrac{1}{2}x + 8\)

Step-by-step explanation:

The y-intercept is where the line crosses the y axis and you can see it crosses at y = 8 (when x =0)

Slope of the line can be found by the formula (y2-y1) / (x2-x1)  where 9x1, y1) and (x2, y2) are two points on the line

Let's take the points (0, 8) and (10, 3) the two extreme points on the line

Slope = (3 - 8) / (10 - 0) = -5 / 10 = - 1/2

Equation of a line in slope intercept form is

y = mx + c

where m is the slope  

b is the y intercept

The equation of the line is therefore

\(y = -\dfrac{1}{2}x + 8\)

Answer:

Y-intercept = 8

Slope = -1/2t

Equation = y =-1/2x+8

Step-by-step explanation:

When x = 0, y = y-intercept.

Therefore, the y-intercept is 8.

We can find the slope using the formula y2-y1 / x2-x1 = m.

Let's use the points (0,8) and (4,6)

6-8 / 4-0 = m;

m = - 1/2.

Given that the generic formula is y=mx+b, and m-slop and b=y-intercept, we have:

y = -1/2x+8.

Answer:

84

Step-by-step explanation:

Find the area of the above rectangle (10*6 = 60)

Find the area of the middle rectangle (4*3 = 12)

Find the area of the lower rectangle (2*6 = 12)

Add up the areas: 60 + 2(12) = 84

Answer:

Sure, I'll explain the cosine rule and sine rule in simple terms:

The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.

Here's an example of how to use the cosine

Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.

Using the cosine rule:

a^2 = b^2 + c^2 - 2bc * cosA

where A is the angle opposite side a, we can plug in our values and solve for a:

a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)

a^2 = 64 + 36 - 96 * 0.707

a^2 = 10.56

a = sqrt(10.56)

a = 3.25 (rounded to two decimal places)

Therefore, the length of side a is approximately 3.25 units.

Answer:

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

\( \frac{a + b}{c} \)

=\( \frac{9 + 6}{3} \)

=\( \frac{15}{3} \)

=5

Answer:

Step-by-step explanation:

(9 + 6)/3 = 15/3 = 5

Answer:4/5

Step-by-step explanation:

80% means 80/100 in fraction. We have to simplify the fraction by 80÷20 and 100÷20 = 4/5

So the answer is 4/5.

Answer:

Step-by-step 80 percent is 80\100 so

For the first one (4\5) 5x20=100 and 4x20=80 which is 80\100

so it should be 4\5

Please vote me for brainless :)

Answer:

30

Step-by-step explanation:

it is simply 30

Answer:

90%

Step-by-step explanation:

Experimental probability that in a group of 4 students, at least one of them has hazel eyes is 85%.

The experimental probability of an event occurring is the number of times that it occurred when the experiment was conducted as a fraction of the total number of times the experiment was conducted.

According to the question

In a school, 30% of the students have hazel eyes.

The number of hazel eyes in data is 17

The total number of data sets are 20.

Experimental probability = \(\frac{17}{20}\) × 100%

= 85%

Hence, experimental probability that in a group of 4 students, at least one of them has hazel eyes is 85%.

Find out more information about experimental probability here

https://brainly.com/question/15729871

#SPJ3

Answer:

96 degrees

Step-by-step explanation:

180 - 84 = 96    

96 + 84 = 180

Answer:

Step-by-step explanation:

90

Answer:

A, D, E

Step-by-step explanation:

x and y should add up to 120 bc 180- 60= 120 so thats the only value we're missing

Answer: A, D, and E

Step-by-step explanation:

When you add up all the angles of a triangle it =180. SO you have to figure out what plus 60=180. A, D, and E all equaled to 180 when I added 60 to it

Answer:

the answer is 62 in. 2

Step-by-step explanation:

(the base is the triangle)

base:2*3/2 * 2 = 6
sides: 2.5*7*2 = 35
bottom: 3*7 = 21

base+sides+bottom
= 6+35+21
=62 in. 2

Answer:

Point D

Step-by-step explanation:

I hope this helps

Answer:

3:3:2:3

Step-by-step explanation:

b/a = 2/3 = b is 2 a is 3

c/b = 2/3 = c is 2 b is 3

d/c=2/3 = d is 2 c is 3

All you have to do to solve this question is to lay out all the variables and see which number matches with which.

Answer:

might be c

Step-by-step explanation:

a − b/c − d = 2 and a − c/b − d = 3 will hold for any values of a, b, c and d as long as

b≠0; c≠0

b/c − c/b = 1

and

a − d = 2 + b/c

If you let x = b/c, b/c − c/b = 1 becomes x − 1/x = 1

⇒ x2 − x − 1 = 0

⇒ x = 1.618 or  x =−0.618.

So

b/c = 1.618 or b/c =−0.618 is required.

The values of a, b, c and d are arbitrary subjected to

b/c = 1.618 or b/c =−0.618 and a − d = 2 + b/c.

Let c and d be the free variables, and let x = d/c then

a − d/b − c = (1 − c/b)x + 2 + c/b

Answer:

We can simply find our answer and this is our solution

38D+41=L

Step-by-step explanation:

Answer:

its 4

Step-by-step explanation:

because u divied

Answer:

i think it would be greatest common factor

Step-by-step explanation:

Answer:194.99 with tax and you save 105 dollars. without tax, your price total is 206.69 and you save 111.30.

Answer:

1

Step-by-step explanation:

anything divided by itself is 1

also when dividing exponets with the same base we subtract the exponet

7-7

0

and 8^0 is 1 because anything raised to the power of zero is 1

hopes this helps

Answer:

1

Step-by-step explanation:

8^7=8^7

A number divided by itself = 1

8^7=2097152

2097152/2097152=1

Answer:

The number expressed in the models below is 0.63 (six tenths and three hundredths)

Step-by-step explanation:

It is represented as follows:

One flat represents 1 whole, so there are 0 whole numbers

One rod represents 1 tenth, so there are 6 tenths (represented by 6 rods)

One unit represents 1 hundredth, so there are 3 hundredths (represented by 3 units)