A geologist has ten rock samples in a bag and is going to use eight for class. What is the probability that the first three pulled out will be hematite, bauxite, and coal in that order, assuming all three are among the rock samples?

Answer:

$5130.84  

Step-by-step explanation:

100 + 3 = 103%

103% = 1.013

$5000 x 1.013^2 = $5130.84

Hope this helps biiiieeee

Answer:

c

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

Answer:

800. Here's why:

Step-by-step explanation:

This indicats that 440 students make up 55% of the 6th grade population. We can write this as

55/440.

We also know that 'x' total students make up 100% of the 6th-grade population, so we can write this as

100/x.

55/440 must be equal to 100/x. When cross multiplied, it becomes 50x=44000. If we divided each side by 50, we'll find that x=880. Therefore, there are 800 6th graders

Answer:495

Step-by-step explanation:

440 rounds up to 450,450+450=900-the 10 we rounded so 890-440 is 450 which is half so we need to add 440 to 550 to get 990 and we half 990 to get  495 and that is your answer i think im very sorry if this is wrong btw a sixth grader did this please find out a way to reply to my comment or something like that to tell me if i am right.

Answer:

random sampling

Step-by-step explanation:

Answer:

A.

Step-by-step explanation: Cluster sampling

Answer:

A

Step-by-step explanation:

X=5 and 3

Answer: a. x=3 or 5

Step-by-step explanation:

x^2-8x+15=0

When factoring this equation we need to find 2 numbers that multiply to get positive (15) and add to get negative (-8)

So -3 and -5 fit this description because -3+-5=-8 and -3*-5=15

(x-3)(x-5)=0

Solve for values of x to get x=3 and x=5

so X=3 or 5

Answer:

356.05 cm³

Step-by-step explanation:

We are looking for the volume. The formula is density = mass / volume.

If we plug in our numbers, our formula would be 2.76 = 982.7 / V.

Multiply both sides by V and your formula would be (V) 2.76 = 982.7.

Divide both sides by 2.76 and you would get V = 356.05.

The volume of the given large emerald is required.

The volume of the given large emerald that was discovered in the mine was 356.05 cm³. The calculations to find this value is shown below.

m = Mass of object = 982.7 grams

[tex]\rho[/tex] = Density of the material the object is made of = 2.76 grams over centimeters cubed

The relation between mass, volume and density is given by

[tex]V=\dfrac{m}{\rho}\\\Rightarrow V=\dfrac{982.7}{2.76}\\\Rightarrow V=356.05072\approx 356.05\ \text{cm}^3[/tex]

Learn more about density:

https://brainly.com/question/6838128

Answer:

7

Step-by-step explanation:

9x+18=2x+19 (corresponding angle)

or, 9x-2x=19-18

or, 7x=1

or, x= 7

Answer:

DON'T PRES THAT LINK THAT IS A HACK AND VIRUS

Step-by-step explanation:

HOPE THIS LETS YOU REMEMBER  ABOUT NOT PRESSING THESE LINKS!

Answer:

Its easy... 5 and 5.04!

Step-by-step explanation:

You have to look at it properly. It says "The value of SQUARE ROOTED K."

So all you have to do is square root them and whatever is in between 2.2 and 2.3 is ur answer. Ur answer 5 and 5.04.

The values of √k that lies between 2.2 and 2.3 is 5 and 5.04.

An equation is an expression that shows the relationship between two or more numbers and variables.

Given that √k falls between 2.2 and 2.3

For k = 1.49, √1.49 = 1.22 which is not between 2.2 and 2.3

For k = 4.8, √4.8 = 2.19 which is not between 2.2 and 2.3

For k = 5, √5 = 2.2 3which is between 2.2 and 2.3

For k = 5.04, √5,04 = 2.23 which is between 2.2 and 2.3

For k = 5.3, √5.3 = 2.302 which is not between 2.2 and 2.3

For k = 6, √6 which is not between 2.2 and 2.3

The values of √k that lies between 2.2 and 2.3 is 5 and 5.04.

Find out more on equation at: https://brainly.com/question/2972832

Answer:

5:2 or in other words 5 to 2

Step-by-step explanation:

The original ratio would be 50:20, but we can divide both sides by 10 to simplify our answer to 5:2.

Answer:

5:2 Or 50:20 (5:2 is the simplified version)

50 bags of skittles to 20 Hershey bars    (what it looks like with words)

Step-by-step explanation:

Answer:

look at my question

Step-by-step explanation:

Answer:

y=1.8

Step-by-step explanation:

first change the fraction into a decimal.

4/5 =0.8

plus the 0.8 to both sides

y=1.8

Answer:

[tex]y - \frac{4}{5} + \frac{4}{5} = 1 + \frac{4}{5} \\ y = \frac{5 + 4}{5 } \\ y = \frac{9}{5} [/tex]

Answer:

1.2

Step-by-step explanation:

First, we need to find the mean of the data. We do this by adding all of the given numbers than dividing it by the number of numbers given. For example, we will add 9+7+11+10+8 which is 45. Since there are 5 given numbers, we are going to divide 45 by 5 which is 9. Now, we need to find the difference (subtraction) of all of the numbers in relation to 9. For example, for 9, we do 9-7 which is 2. Keep 2 in mind. Then we do 11-9 which is also 2. 10-9 is 1. 9-9 is 0. And finally, 9 minus 8 is also 1. Then, like what we did before, we need to find the mean of all of these differences. 2 plus 2 plus 1 plus 0 plus 1 is 6. Then, we divide 6 (our total of these differences) by 5 (the number of differences) 6 divided by 5 is 1.2 so there is your MAD and answer.

The mean absolute deviation of the given data is 1.2.

The mean absolute deviation of a dataset is the average distance between each data point and the mean. It gives us an idea about the variability in a dataset.

Here's how to calculate the mean absolute deviation.

Data given: 9, 7, 11, 10, 8

Step 1: Calculate the mean.

[tex]mean = \frac{sum\ of\ observations}{number\ of\ observations} \\\\mean = \frac{9 + 7+11 + 10 + 8}{5}\\ \\mean =9[/tex]

Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations.

Data    Distance from mean

9          |9 - 9| = 0

7          |7 - 9| = 2

11          |11 - 9| = 2

10         |10 - 9| = 1

8          |8 - 9| =1

Step 3: Add those deviations together.

Sum of deviations =  0 + 2 + 2 + 1 + 1 = 6

Step 4: Divide the sum by the number of data points.

Mean absolute deviation = [tex]\frac{sum\ of\ deviations}{number\ of\ observations}\\ \\[/tex] = [tex]\frac{6}{5} = 1.2[/tex]

Learn more about mean absolute deviation here

https://brainly.com/question/10528201

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Answer: 28

Step-by-step explanation:

1.54 divided by 0.055 = 28

Answer:

no

Step-by-step explanation:

Answer:

1:[tex]y=x+6[/tex]

2[tex]y=\frac{1}{2}x[/tex]

Step-by-step explanation:

If I helped, a brainliest answer would be greatly appreciated!

1^6 = 1

11^2 = 11 x 11

11 x 11 = 121

121 + 1 = 122

Answer:

Answer is 22

Step-by-step explanation:

2×7+9-3÷3

14+9-1

23-1

=22

I hope it's helpful!

Answer: 22

Step-by-step explanation:

I did it on paper and got 22. I checked my answer by using a calculator and it also said 22. Correct me if I'm wrong. Hope this helped

Answer:

5(3x+7y)

Step-by-step explanation:

In able to factor, it would require to find the least common number between x and y. In this scenario, it would be 5.

Answer:

You're going to get 5(3x + 7y)

Step-by-step explanation:

Simplifying

15x + 35y

Factor out the Greatest Common Factor (GCF), '5'.

5(3x + 7y)

Final result:

5(3x + 7y)

Answer:answer

Step-by-step explanation: we’ll see to put it in a simpler way you are first going to have to joe nuts

Answer:

the amount of pages typed after 1/3 of an hour is given. Multiply this number by 3 to get the full hour of pages types.

1 5/12 * 3 = 3(1) + 3(5/12)

= 3 5/4

= 4 1/4 pages

Answer:

A

Step-by-step explanation:

I think you are in geometry I learned this a little back...

It's hard to explain but basically one side is just (n) another is (n(square root sign))and another is (2n.)    

So the answer Is a because in this case (n) is 4  

Step-by-step explanation:

In triangle

x²=5²+12²

x²=25+144

x²=169

x= root of 169

x=13

Answer:

13

Step-by-step explanation:

A^2+B^2=C^2

5=A 12=B X=C

C is is always the longest side of a right triangle.

Answer:

11

Step-by-step explanation:

Answer: 11.7

Explanation:

-1.7-(-13.4)=11.7