Nikita performed an experiment in which she randomly pulled a marble from a bag, recorded its color, placed it back in the bag, and then repeated. The results are shown in the following table.

Result Frequency
Red 20
Purple 24
Blue 12

Based on the experiment, what is the probability of drawing a blue marble?

Answer:

the answer is

1017.88.

in terms of pi

Answer:

B

Step-by-step explanation:

[tex]\dfrac{7^{12}}{7^{15}} = 7^{12-15} = 7^{-3}[/tex]

The first step that we must take before attempting to solve a problem is to understand what the problem statement is asking from us and what is given to us to help accomplish that goal.  Looking at the problem statement, it asks us what the probability of choosing a vegetable is.  We are given information about how many dishes of each type of food there is out of 10 dishes.

The next step that we need to do is to collect the total amount of vegetable dishes that have been listed in the problem statement along with the total amount of dishes.  We know that there are 10 covered dishes and that there are 2 broccoli and 2 carrot which adds up to 4 vegetable dishes.

Now that we have that information we can move onto the final part which is to determine the probability of choosing a vegetable dish.  We can do this by dividing the total amount of vegetable dishes from the total amount of dishes.

Determine the probability

Therefore, looking at the options that best matches the answer that we got we can confidentially say that it is option A, 2/5.

[tex]\huge\text{Hey there!}[/tex]

[tex]\text{Your equation: }\rm{\dfrac{number\ of\ the\ vegetables (the\ carrots\ \& \ the \ broccolis)}{total\ meals\ you\ have\ all\ together} = probability}\\\\\rm{\dfrac{2\ carrots + 2 \ broccolis}{10\ meals} = probability}\\\\\text{2 + 2 = \boxed{\mathbf 4} , right?}\\\\\rm{\dfrac{4}{10} = probability}\\\\\rm{\dfrac{4\div2}{10\div 2} = probability}\\\\\rm{\dfrac{2}{5} = probability}\\\\\\\huge\text{Therefore, your answer should be: \boxed{\mathsf{\dfrac{2}{5}}}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

512

Step-by-step explanation:

8³ is the same as saying 8×8×8

8×8×8= 512

Hope that helps!

Answer:

its D because the formula to find circumference is π x d and d stands for diameter and the diameter would be 8 and π x 8 would be 25.12 and the closest is 25

Step-by-step explanation:

can i have brainliest please.

Answer:

A

Step-by-step explanation:

4/6.28318531

move decimal 2 places

Answer:

D

Step-by-step explanation:

π is neverending. 3.14159...

√5 also is neverending.

√81 is 9.

2.3 repeating has the same digit repeating.

Answer:

27.778, so 5 significant digits

Step-by-step explanation:

Answer:

B, C, and E

The reason B, C, and E are the answer's is because the equation of a linear equation is y= mx+b. B, C, and E are written this way. We can eliminate A and D because They are quadratic equations, because the X is squared.

Hope This Helps! :) Please mark brainliest!

Answer:

C - The other answers have no solutions...

Hope This Helps! :) Please Give brainliest if this helped you!

Answer:12p+36>480

Step-by-step explanation: I got the answer somewhere else but I’m not 100% sure if it’s right

Answer: d

Step-by-step explanation: formula is 1/2bh 14 times 6 is 84 divided by 2 is 42

Answer:

D

Step-by-step explanation:

first 6x14=84 then multiply it by 1 half to get 42 units

Answer:

A and B are the correct answers

Step-by-step explanation:

Answer: A because im just guessing

Answer:

Surface Area = 2×(3.4×18 + 3.4×30.6 + 18×30.6) = 1432.08 centimeters2

Step-by-step explanation:

Answer:

slope is -5

Step-by-step explanation:

The formula for slope is:

m = (y2 - y1)/(x2 - x1)

m = slope

y2 = y-coordinate of second point

y1 = y-coordinate of first point

x2 = x-coordinate of second point

x1 = x-coordinate of first point

We can choose our first and second points as any points on the table, but we will choose the first andd second points which are (-5,10) and (-3,0).

y2 = 0

y1 = 10

x2 = -3

x1 = -5

m = (0-10)/(-3-(-5))

m = (-10)/(-3+5)

m = (-10)/(2)

m = -5

Working with fractions can be tricky, so I like to start by multiplying everything by the LCM of the denominators of the fractions.

In this case, both fractions have a denominator of 4, which means that the LCM is 4 and we will be multiplying everything by 4.

1/4x - 1 = 3/4x - 5

---The below equation looks much more familiar and appears easier to solve.

1x - 4 = 3x - 20

-4 = 2x - 20

16 = 2x

x = 8

Answer: C, x = 8

Hope this helps!

Answer:

There are 46 eggs left

Step-by-step explanation:

18 x 4 = 72 - 26 = 46

Answer:

46

Step-by-step explanation:

so what you need to do is 18 times 4 crates then they eaten 26 so its 18 times 4 - 26 welcome

Answer:

459

Step-by-step explanation:

340+119=459

Answer:

221

Step-by-step explanation: 340-119 is 221

Answer:

41

Step-by-step explanation:

113 = x + 72

subtract 72 from both sides

41 = x  

Reason:

Dale is biased toward the two fastest people in the group, but is leaving out the rest of the swimmers who may not be so fast. The people left out may be very distant from the top two swimmers. Therefore, Dale has not picked a representative sample.

As an example with numbers, let's say we had these average speeds in mph: {1, 2, 3, 4, 20, 30}. Of course these are just hypothetical examples and not based on actual realistic speeds; however, the example should still suffice.

That data set shows the average is closer to 2 and 3 than it is to 20 and 30. Dale polling the fastest people greatly skews the mean larger than it should be.

To get a better more representative sample, Dale should randomly pick 2 people regardless if they are the top two swimmers or not. He can pick the names out of a hat, or use a computer program to generate random numbers.

Answer:

A: <5. 5 Matches <7. So whatever angle measure <5 is, that is what <7 is.

b: (4(<6)+2)

c: x=<45

Step-by-step explanation:

C:180/4 = 45

Answer:

Step-by-step explanation:

(a)<7 is 66 degrees, because <7 and <5 are vertical angles.

(b) (4x + 2) + 66 = 180

(c) (4x + 2) + 66 = 180

4x + 2 = 114

4x = 112

x = 28

Answer:

Airspeed:180 go

160 No Go

210 Go

130 No Go

vs=20mph

Step-by-step explanation:

class

Answer:

Airspeed:180 go

160 No Go

210 Go

130 No Go

vs=20mph

Step-by-step explanation:

your welcome and pls give me the brainliest

Let's simplify these ratios:-

1. 3:9

Divide both sides by 3:-

1:3

 2. 9:27

Divide both sides by 9:-

1:3

  3. 2:4

Divide both sides by 2:-

1:2 (Option C)

 4. 30:90

Divide both sides by 30:-

1:3

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)

Answer:

x = 57

Step-by-step explanation:

The value of x is 57.

Properties of Parallel Lines

Given:

lime m || n

So, using the property of parallel lines we have the angles on the same side of transversal are supplementary

x- 5 + 2x +14= 180

3x + 9 = 180

3x = 171

x= 171/3

x= 57

Hence, the value of x is 57.

Learn more about parallel lines here:

https://brainly.com/question/16701300

#SPJ2

Answer:

The horizontal line is the x axis

the vertical line is the y axis

The first number is always the number of the x axis

Example.

(6,9)

6 is in the x axis

9 is in the y axis

find the number 6 in the x axis (the horizontal one) and then go up until the number 9.

Answer:

I drew it for you.

Step-by-step explanation:

Hope I helped!! Pls give brainliest if I helped.

Answer:

The length of one side is 10 feet

Step-by-step explanation:

This is because the area of a square can be found through the formula side x side or [tex]side^{2}[/tex]. You can find the length of one side by finding the square root of the area. You would get both a positive and negative value for the square root but you want a positive value because a length cannot be negative.

Answer:

5x - 6

Step-by-step explanation:

f(x) = 5x + 4

f(x-2) = 5(x -2) + 4

f(x-2) = 5x - 10 + 4

f(x-2) = 5x - 6

I hope this helps!

Answer:

5x - 6

Step-by-step explanation:

Plug in x-2 to the function:

f(x - 2) = 5(x - 2) + 4

= 5x - 10 + 4

= 5x - 6

The cost of one box of paper clips is $1.85 and the cost of one package of index cards is $3.95

Step-by-step explanation:

Eldora and Finn went to an office supply store together

Eldora bought 15 boxes of paper clips and 7  packages of index cards for a total cost of $55.40

Finn bought 12 boxes of paper clips and 10 packages of  index cards for a total cost of $61.70

We need to find the cost of one box of paper clips and the cost of one package of  index cards

Assume that the cost of one box of paper clips is $x and the cost of one package of  index cards is $y

∵ x represents the cost of one box of paper clips

∵ y represents the cost of one package of  index cards

∵ Eldora bought 15 boxes of paper clips and 7  packages of

 index cards for a total cost of $55.40

∴ 15x + 7y = 55.4 ⇒ (1)

∵ Finn bought 12 boxes of paper clips and 10 packages of  

 index cards for a total cost of $61.70

∴ 12x + 10y = 61.7 ⇒ (2)

Now we have system of equations to solve it

Multiply equation (1) by -10 and equation (2) by 7 to eliminate y

∵ -10(15x) + -10(7y) = -10(55.4)

∴ -150x - 70y = -554 ⇒ (3)

∵ 7(12x) + 7(10y) = 7(61.7)

∴ 84x + 70y = 431.9 ⇒ (4)

Add equations (3) and (4)

∵ (-150x + 84x) + (-70y + 70y) = (-554 + 431.9)

∴ -66x = -122.1

- Divide both sides by -66

∴ x = 1.85

Substitute the value of x in equation (1) or (2) to find y

∵ 12(1.85) + 10y = 61.7

∴ 22.2 + 10y = 61.7

- Subtract 22.2 from both sides

∴ 10y = 39.5

- Divide both sides by 10

∴ y = 3.95

The cost of one box of paper clips is $1.85 and the cost of one package of index cards is $3.95

(this is an answer I got previously)