A bag contains 6 red marbles, 6 green marbles, and 6 blue marbles. If Olivia draws a marble, replaced it and then draws another marble, what is the probability that both marbles she draws will be red?

Answers

Answer 1

Answer:

5/51 or 9.8

Step-by-step explanation:

Since she does not put the marble back it's dependent.

1/3 chances the first marble is red and 5/17 the second is too.

Multiply and you get 5/51 odds, or approximately 9.8% chance

Answer 2

Answer:

1/9.

Step-by-step explanation:

Prob(First marble is red) = 6/18 = 1/3

Prob(Second marble is red) = 1/3

Required probability = 1/3 * 1/3 = 1/9.


Related Questions

help fast i’m bad with math help

Answers

Answer:

D. She should find the average of 4.4 and 4.5

Explanation:

(4.4 + 4.5)/2 = 4.45

4.45² ≈  19.80

4.45² is closer to 20 than 4.4² and 4.5²

next she will repeat the same process: (4.45 + 4.5)/2

7,8,10,10,12,15 what is the mean of these numbers?


Marking brainliest

Answers

Answer:

10.3

Step-by-step explanation:

(7 + 8 + 10 + 10 + 12 + 15) / 6 = 10.333

What is the point-slope form of a line with slope-5 that contains the point
(2, -1)?

Answers

Answer:

point slope form

y-y1=m(x-x1) where

m=slope and you are given a point (x1,y1)

slope=-5

point is (2,-1)

x1=2

y1=-1

m=-5

so

y-(-1)=-5(x-2)

y+1=-5(x-2) is answer

Which equation shows that the Pythagorean identity is true for 0 = 360°?
Select the equation that is in the form sin20 + cos20 = 1.
A. (-1)² +02 = 1
B. 02 + 12 =1
O c. 12 + 02 = 1
D. 02 + (−1)2 = 1

Answers

If the measure of an angle is 360°, then the value of sin²θ + cos²θ = 1 will be  0² + 1² = 1. Then the correct option is B.

What is a Pythagoras Theorem?

If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:

|AC|² = |AB|² + |BC|²    

where |AB| = length of line segment AB. (AB and BC are the rest of the two sides of that triangle ABC, AC being the hypotenuse).

The equation is given below.

sin²θ + cos²θ = 1

If the angle is 360°. Then the equation will be

sin²360° + cos²360° = 1

                      0² + 1² = 1

Then the correct equation is B.

Learn more about the Pythagoras theorem here:

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Answer:

Step-by-step explanation:

it’s B

find the midpoint segment with the following endpoints. (2,-9) and (-4,-4)

Answers

Answer:(4, 5) .                                                                    

dkfjsdlkfjsdlkfjsdklfjsdlkfj

Doug records how many miles and how long he rides his bike each day on a scatter plot.

Use the trend line shown in the scatter plot to estimate the number of miles Doug will ride his bike in 40 minutes.

7
6.5
8
7.5

Answers

Answer:

Its 6.5

Step-by-step explanation:

i got 100:)

Answer

Send image next time -_-

Step-by-step explanation:

Does a triangle with these side lengths exist?
28, 41, 13

Answers

Answer:

No

Step-by-step explanation:

it doesnt add up to 180 degrees

Use the triangle inequality theorem.

Add two sides together and see if it is greater than the length of the 3rd side:

28 + 41 = 69 which is greater than 13

41 + 13 = 54 which is greater than 28

28 + 13 = 41 this is equal to the 3rd side length of 41 and not greater than 41

Because 28 + 13 is not greater than 41 those 3 lengths cannot make a triangle.

Help Help Help Help Help FAST GO ZOOOOOOOOOOOOM WITH THIS QUESTION PLEASE

Answers

Answer:

A. 60+x=90

Step-by-step explanation:

Complimentary angles are angles that add to 90.

60+x=90 all complementary angles add up to 90 degrees

a set contains the numbers 0,6,12, and 15 Two different numbers are selected randomly from this set. What is the probability that the sum is greater than 12? What is the probabilty the product is 72?

Answers

The probability that the sum is greater than 12 is  [tex]\frac{2}{3}[/tex].  The probability the product is 72 is [tex]\frac{1}{6}[/tex].

What is probability?

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event. For an experiment having 'n' number of outcomes, the number of favorable outcomes can be denoted by x. The formula to calculate the probability of an event is as follows.

Probability(Event) = Favorable Outcomes/Total Outcomes

The outcomes that the sum is greater than 12

6 and 12, 6 and 15, 12 and 15, 0 and 15

So the probability that the sum is greater than 12 is

= [tex]\frac{4}{C^{2} _{4} }[/tex]

= [tex]\frac{4}{6}[/tex]

= [tex]\frac{2}{3}[/tex]

The outcomes that the product is 72: 6 and 12

So the probability is

= [tex]\frac{1}{C^{2} _{4} }[/tex]

= [tex]\frac{1}{6}[/tex]

Hence, the probability that the sum is greater than 12 is  [tex]\frac{2}{3}[/tex].  The probability the product is 72 is [tex]\frac{1}{6}[/tex].

Find out more information about probability here

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I need help answering this

Answers

x=4. hope this helped

Gabe walks from his house to the library then to the gymnasium what is the total distance he walked

Answers

Answer:

4.6 and 10.3

Step-by-step explanation:

Which is the rate of change for the interval between 2 and 6 on the x-axis?

Answers

I believe your answer is 3, but im not sure honestly. Hope this helps sorry.

Which statements are true about the number 2One-fourth? Check all that apply.

Answers

Answer:

wheres the picture

Step-by-step explanation:

I will give 90 points!!!
A number cube is rolled. what is the probability of rolling 2, 3, or 5?
a. 2/3
b. 1/2
c. 1/3

Answers

I’m assuming it’s a dice
b) 1/2

answer: 1/2

Step-by-step explanation:

Assuming this is a 6 sided number dice The answer would be 3/6 but in simplest form 1/2 because 2, 3, and 5 is half of the numbers on a dice example: 2, 3, 5, 1, 4, and 6 are all the possibilities Hope this helps!

Using the graphing function on your calculator, what is the solution to the system of equations show below?
y + 2x5
4y+ 5x = 14
A. x=2, y=1
B. More than 1 solution
C. x= 1, y = 2
D. No solution

Answers

Answer:

ima redo my answer but

Step-by-step explanation:

For y +2x5 is that an times sign or wht cause i can't answer that unless thats cleared up first

___ - 35 = -103
answer fast pls

Answers

Answer:

-103 + (-35) = -138

138 - 35 = -103

138= answer

Step-by-step explanation:

yw <3

3 What is the median of the data shown?
38, 50, 43, 33, 35, 30, 64, 43, 41
А 34
B 35
С 41
D 43

Answers

It is c

Plz mark brainliest I just took a test with this!

tan0 + 1=0
write your answer in radians in terms of pi

Answers

Answer:

Our range is within [0,2π]

We cant exceed that.

tan∆ + 1=0

tan∆= -1

∆=tan-¹(-1)

∆=-45°

Now it has 3 Solutions within the given interval

-45° x π/180 = -π/4

So For the second quadrant... 180-∆ = 180-45 =135°

It is true for tan(135) Which is also equal to -1

135xπ/180 = 3π/4

then

360-45 = 315

This is also true because tan(315)=-1

315° x π/180 = 7π/4

This is where we stop so we dont exceed the given range.

Megan earned the following test grades for the third nine weeks: 95, 84, 90, 78, 83. Find the mean absolute deviation of the data. Do not round, enter any decimal.

Answers

Answer:the answer is FREE COINS!

Step-by-step explanation:

78 bc that’s the the baddest answer

Which table represents an exponential function of the form y= b^x when 0 < b < 1?

Answers

Y=mx+b is the answer

Answer:

table b

Step-by-step explanation:

Edge

I need help with both of these please..

Answers

Answer:

20. bcg

21. 124

Step-by-step explanation:

Will mark brainiest if u give a real answer not a link

create an exponential function given 2 point
1. (-1,2) and (1,8)

2. (1,1) and (-1,4)

Answers

1. y = 4 * 2^x

2. y = 2(1/2)^x

I hope this helps you, have a good day!

What is the probability that a customer ordered a hot drink given that he or she ordered a large?

Answers

i really don’t understand this question. can you explain this in the comment so i can answer your

The radius of a circle is 7.9 ft. Find the circumference to the nearest tenth.

Answers

The answer is C=49.64 ft

Answer:

7.9

2 x 3.14 x 7.9 = 49.612 rounded up will be: 49.6 ft

pls help
no links
10 pts

Answers

Answer:

98 cm^2

Step-by-step explanation:

7 x 14 =98

the graph of liner function f passes through the point (1,-9) ad has a slope of -3 what is the zero of f

Answers

Answer:

answer is 4 im pretty sure

Step-by-step explanation:

did da math

b) If it costs £4 to buy 5 pens, how much will it cost to buy 8?

Answers

Answer:

10 because you need to find how much one pen would cost. So you decide 5 and 4. the result would be 1.25 then you multiple the result by 8. you get 10

PLEASE HELP ME PLEASE

Answers

Answer:

1. c

2. b

3. a

4. d

5. e

6. f

Step-by-step explanation:

9)
Find the average rate of change for f(x)= x to the second power+ 7x+10 from x= 0 to x= 2
.

Answers

Answer:

9

Step-by-step explanation:

At x=0, this function's y-value is simply 10. At x=2, the y-value is 28.

We can figure this out by using the slope formula.

[tex](y^2-y^1)/(x^2-x^1)[/tex]

We plug in values to get:

[tex](28-10)/(2-0)[/tex]

18 / 2

9

What quadrant does Cos A < 0, Tan A < 0

Answers

Answer:

Cos A < 0 in the 3rd and 4th quadrants

Tan A < 0 in the 2nd and 4th quadrants

Step-by-step explanation:

In trigonometry, we make use of the ACTS initials to get which quadrant has it's sine, cosine or tangent functions as negative or positive.

In quadrant 1, it is denoted by A meaning All of sine, cosine and tangent functions are positive

In quadrant 2, it is denoted by C to mean that only cosine is positive i.e. greater than 0.

In quadrant 3,it is denoted by T to mean that only cosine is positive i.e. greater than 0.

In quadrant 4, it is denoted by S to mean that only sine is positive i.e. greater than 0.

Thus, comparing all above with the question, we can say that;

Cos A < 0 in the 3rd and 4th quadrants

Tan A < 0 in the 2nd and 4th quadrants

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