A bag contains 2 red marbles, and 3 black marbles. If Abby picks a marble without looking, returns it to the bag, and then draws a second marble, what is the probability that both marbles are red? Give the answer as a fraction in simplest form.

Answers

Answer 1

Answer:

4/25

Step-by-step explanation:

The total number of marbles is 2+3=5 total

P(1 red, then a second red) = (2/5) * (2/5) = 4/25


Related Questions

What is the distance points between the points 5,9 and 5,13?

Answers

Answer:

4 square units

Step-by-step explanation:

(FOR BRAINLIEST!!!)

Type the correct answer in the box.
The line of best fit for this scatter plot shows the relationship between the average temperature and the monthly electricity bill at Jenny's house.

Answers

Answer:

Around 200 Dollars

Hope it helps

Answer:

$200

Step-by-step explanation:

HELP, i’m struggling

Answers

Answer:

x = 14

Step-by-step explanation:

(3x + 8) = (4x - 6)

3x + 8 = 4x - 6

     +6         +6

3x + 14 = 4x

-3x          -3x

14 = 1x

x = 14

plug 14 into the x, then solve it urself

solve for x please thanks

Answers

Answer:

x=[tex]\frac{10}{14}[/tex]

Step-by-step explanation:

y=7x-2

2(7x-2)-4x=10

14x-4-4x=10

14x-4x=10-4

10x=14

x=[tex]\frac{10}{14}[/tex]

The person that just answered is wrong the answer is x=7/5

i don’t understand, explain also

Answers

Answer:

32

63

Step-by-step explanation:

m<BCA=180-148-32 Subtract 180-148 b/c x<BCA is along the straight line ACD. A straight line will have an angle of 180 degrees.

m<CAB=180-32-85=63 All triangles have angles which add up to 180 degrees. Subtract 32 and 85 from 180 to get 63.

Step-by-step explanation:

148 + x = 180

x = 180 - 148

x = 32

Find m<CAB basically means find the measure of the angle of A ( m<A )

m<B + m<A + x = 180

85 + m<A + 32 = 180

117 + m<A = 180

m<A = 180 - 117

m< A = 63, so m<CAB = 63

And m<BCA means find the measure of angle C(m<C) or as we did it earlier as x, which is the same thing.

So m<BCA = 32

Pls help easy points question On the photo

Answers

a) tomatoes : chicken broth = 9:15 or 3:5
Tomatoes : spinach = 9:9 = 1:1
Spinach : chicken broth = 9:15 = 3:5

b) tomatoes : chicken broth = 4.5:7.5 = still 3:5
Tomatoes to spinach is still 1:1
Spinach : chicken broth 4.5:7.5 still = 3:5

Dividing all quantities by 2 doesn’t change the ratio.

evaluate -7 5/8 + (-6 1/4)

Answers

Answer:

exact form:

-111/8

Decimal form:

-13.875

Mixed Number Form:

-13 7/8

Answer:

-5.875

Step-by-step explanation:

primero se resuelve el paréntesis

1/4 =0.25

y se multiplica por el -6

0.25x-6= -1.5

luego se resuelve el otro lado

primero dividimos

5/8=0.625

y se multiplica por -7

0.625x-7= -4.375

y para finalizar se suman los dos lados

-4.375 + -1.5

= -5.875

What's the answer?

A) Y= 2x
B) Y= -2x - 4
C) Y= 2x - 2
D) Y= 2x + 2

Answers

Hi!! I'd love to help!!

The slope of your points is 2.

When we use the slope intercept formula (y=mx+b), we get y=2x-2.

So the answer to your question is C

Hope this helps!! Let me know if you need any more help or have questions/concerns.

Simplify the expression below 12 divided by (2+1)

Answers

Answer:

12 divide by 2+1

2+1=3 so

12/3

4

Resuelve
14 - 15 – (-13) + 12 – (-11)

. 20 – 40 – (- 50) + 70 – 100

Answers

can u translate it into english

9x²+18x-7 (Factor COMPLETELY)

Answers

Answer:

(3x - 1) • (3x + 7)

Step-by-step explanation:

Also if you ever need help with algebra, tiger-algebra.com is a good way to solve it! It gives you the steps and everything too.

Hope this helps!

Step-by-step explanation:

[tex]\tt{}( {9x}^{2} - 18x - 7)[/tex]

[tex]\tt{} {9x}^{2} + 21 - 3x - 7[/tex]

[tex]\tt{}3x \times (3x + 7) -( 3x + 7)[/tex]

[tex]\tt{}(3x + 7) \times( 3x - 1)[/tex]

12 less than 7 times a number, how do I put this in numbers and symbols and letters

Answers

Answer:

7x - 12

Step-by-step explanation:

'12 less' means thats u have to subtract 12 from the next number

'7 times a number' means 7 multiplied by a variable like x, y, or z

you put those two together and get 7x - 12

Answer: 7x-12

Step-by-step explanation:

“12 less than” would simply imply “subtract 12 from” the sum of 7 times a number. Let “x” represent the unknown number and multiply it by 7.

He is ordering the pizzas from a place that has 12 different topping options.
7 options are vegetarian and 5 are meats.
Write the ratio of vegetarian options to the total of options in three different ways.

Answers

Answer:

124

Step-by-step explanation:

1234

7:12. 7 to 12. 7/12.


do y’all get it now?

-24x^3y^2+16xy^3+12y^3

Answers

Answer:

4y^2 x (6x^3 - 4xy - 3y)

Step-by-step explanation:

Factor out -4y^2 from the expression

I WILL GIVE YOU BRAINLIEST IF SOMEONE ANSWERS THIS QUESTION!!!!!

Answers

Answer:

I say Mean.

Step-by-step explanation:

Mean (Average): 23

Mode(most common): 21

Median(Middle): 21

The manager of a company wants to find out how many hours the employees worked in the previous month. Which of the following is a statistical question that the manager can ask? A. How many employees are there in the company? B. Which employee worked the most hours in the last month? C. How many employees worked more than 35 hours this week? D. How many hours does each employee work in a week?

Answers

D

Because then he can add all the numbers up and then get the amount of hours worked total

Answer:

B. How many hours does each employee work in a week?

Step-by-step explanation:

A statistical question is one that has a variable answer.

The answers to the question, "How many hours does each employee work in a week?" vary by employee, so it is a statistical question.

I hope i helped

A train is traveling at 30 miles per hour.

How long will it take the train to travel 180 miles?
FREE BRAINLIEST!!!

Answers

Answer:

Six hours

Step-by-step explanation:

Answer:

6 Hours

Step-by-step explanation:

If the train travels at 30mph for 6 hours it will have traveled 180 miles.

30 • 6 = 180

I hope this helps

How do you find the height of a parallelogram without the area of it?

Answers

Answer:

See: https://brainly.in/question/12682555

Step-by-step explanation:

The link provided will take you to a differently worded explanation from another user.

You may see the "slant" referred to as a "hypoteneuse", as the shape created by the line of height(or altitude) is a right triangle. Given the base of the triangle and the "slant" or "hypoteneuse", format the equation (a²+b²=c²)-where a represents the height(altitude), b represents the base, and c represents the slant(hypoteneuse)- to fit your needs:

c²-b²=a². From this point, find the square root(√) of a. If it cannot be simplified further, then (√a) is your solution.

2. Classify the angle as acute, obtuse, right or straight.
O acute
O obtuse
Oright
straight

HELP ASAP

Answers

Answer:

Please include the details of the angle

Step-by-step explanation:

When the angle is 93 degrees, the the angle is a obtuse angle. option B is correct.

Given that the measure of angle A is 93 degrees, we can classify the angle as follows:

Angle A = 93 degrees

We know that if angle is less than 90 degrees, it is acute.

if angle is greater than 90 degrees, it is obtuse.

if angle is equal to 90 degrees, it is right angle.

Since the angle measures greater than 90 degrees, it falls within the range of an obtuse angle.

Therefore, the correct classification for angle A is obtuse.

To learn more on Angles click:

https://brainly.com/question/28451077

#SPJ7

The measure of angle A is 93. Classify the angle as acute, right, obtuse, or straight

A acute

B right

C obtuse

D straight

Matrix A has 2 rows and 3 columns whereas matrix B has3 rows and 2 column
Can AB be multiplied? Can BA be multiplied? Give the reason​

Answers

Step-by-step explanation:

for any matrix multiplication number of columns of first matrix should be equal to number of rows of second matrix.

For AB

A has 3 columns and B has 3 rows so it matches . Hence can be multiplied.

For BA

B has 2 columns and A has 2 rows it also matches so can be multiplied

Is this number prime or composite

Answers

Answer:

no

Step-by-step explanation:

its composite

Answer:

Composite

Step-by-step explanation:

70 is a composite number as it has factors other than 1 and itself.

Find the value of x.

Answers

Answer:

x is 24

Step-by-step explanation:

5x+60=180

5x=120

x=24

Given that the random variable X = number of days a student sleeps in during the week, what is the correct notation for the probability that a student will sleep in at least 3 days?​

Answers

Answer:

X > 3/7

Step-by-step explanation:

X > 3/7

We know that the student sleeps in at least 3 days, but we don't know what the exact number is, we use an inequality where X is greater than or equal to 3 out of the 7 days.

X>3/7


S
S
S
D
S
S
D
Ddkdjjdjdhdjd

How do you find the experimental probability?

Answers

Conduct an experiment and record the number of times the event occurs and the # of times the activity is performed then divide the two numbers to obtain the Experimental Probability.

Match each equation with its graph. Use the graph of
y= x, shown in red, to help.

Answers

Answer:

igggg

Step-by-step explanation:

hfghggghvvhhhgghu

Find the y intercept of the following line (-2,1) and (1, 2.5)

Answers

Answer:

2

Step-by-step explanation:

(-2 , 1) ; (1, 2.5)

Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]

         [tex]\frac{2.5-1}{1-[-2]}\\\\= \frac{1.5}{1+2}\\\\=\frac{1.5}{3}\\\\= 0.5[/tex]

m =0.5

y -y1 =m(x -x1)

y - 1 = 0.5(x - [-2])

y - 1 = 0.5(x + 2)

y -1 = 0.5x + 0.5*2

y - 1 =0.5x + 1

  y = 0.5x + 1 + 1

 y = 0.5x + 2

y-intercept = 2

For the line above, what is the slope? *

Answers

Answer:

1

Step-by-step explanation:

Find the rise over run

Rise = 3

Run = 3

3/3 = 1

Slope = 1

Answer:

1

Step-by-step explanation:

First, you take any two points from the line, I put (2,1) and (0,-1). You plug it into the formula y2-y1/x2-x1 which would be -1-1/0-2 which is equal to -2/-2=1

Hope this helps

Sharon tried to solve an equation step by step.
all Sumi
9 = -3(e - 2)
mbining
9-3e + 6
Step 1
he distrib
15 - 3e
Step 2
5=e
nterpretin
Step 3
Find Sharon's mistake.
O 1.5
Choose 1 answer

Answers

Not sure if this is what you’re looking for because the question is choppy and some of the letters/words are missing.

Step 2(?) the step with 15 - 3e
When combining 9 = -3e + 6, six would be subtracted from nine equaling three not fifteen.
Correct Steps:
Equation: 9 = -3 (e - 2)

Step 1: 9 = -3e + 6
- 6 - 6
3 = -3e

Step 2: 3 = -3e
/-3 /-3
-1 = e

Answer: -1 = e

00:00
Figure D'EFG' is a dilation with center (0,0) of figure DEFG. What is the scale factor? Enter your answer in the box.

ILL GIVE BRAINLIST BUT PPLEASE HELP

Answers

Step-by-step explanation:

To work out the scale factor, divide one of the sides from the larger shape from the smaller shape so:

15/6 = 2.5

So your scale factor would be 2.5

And to check this, multiply 2.5 by 6 and u should get 15, so you know it is correct! :)

Here is a list of numbers.
32 29 30 37 34 33 31
Tanya thinks that to work out the median, she simply needs to find
the middle number. So she says that “37" is the median for this list of numbers.
Tanya's answer is not correct.
a) Describe what is wrong with her method.
b) Work out the median of the numbers in the list.

Answers

Answer:

a). To find the median from a set of numbers, you need to arrange them from ascending order (smallest to biggest), and then you need to find the number in the middle

b). 32

Step-by-step explanation:

b). Smallest to biggest

29, 30, 31, 32, 33, 34, 37

From the set of numbers given, we can clearly see that 32 is in the middle.

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