2. Ajar contains 10 marbles, 6 marbles are red, and 4
marbles are blue. If 2 marbles are chosen one at a time
without replacement, what is the probability that the first
marble will be blue and the second marble will be red?
A: 3/16 B: 6/25 C: 1/8 D : 12/45
Independent or Dependent:
Final Answer:

Answers

Answer 1

Answer:

A

Step-by-step explanation:

Note that there are 16 total marbles. A is simply a set of sequential events. On the first, you have 10/16 chances to draw a red. Supposing this red is not replaced, the chance of drawing a second red will be 9/15; therefore, the probability of A is (10/16) * (9/15) = 0.375. Event B is translated into 2 events: Blue + (White or Red) or (White or Red) + Blue. The probabilities of each of these events, added together would be (2/16) * (14/15) + (14/16) * (2/15) = 0.2333333333; therefore, A is more probable.


Related Questions

mr. Kido purchased 5
footballs for his
physicd education
class. If he paid
$41.25. how much was
each football?

Help!!

Answers

Answer:

8.25

Step-by-step explanation:

Answer:

$8.25

Step-by-step explanation:

Divide: 41.25 divided by 5

41.25 divided by 5=8.25

$8.25

Hope this helped!! :)

Brainliest?!?!

Stay safe and have a wonderful day/afternoon/night!!!

Which linear equation is represented by the table? Please help me, I really don’t understand, thank you so much!!

Answers

Answer:

C) y=x+3

Step-by-step explanation:

I did it and got it right

Help please!!! need to turn in, in 17 minutes

Answers

Answer:

x+4 and y+3

Step-by-step explanation:

Both the x and y values move in positive directions from the first triangle to the second.

Answer:

(x+4, y+3)

Step-by-step explanation:

First, choose a point to follow (I chose C).  The coordinates of C are (-2, -5).  The coordinates of C' are (2, -2).  To get to 2 from -2, you have to add 4.  Move left or right because it's on the x-axis.  Since it's moving you the right, it is positive.  So, x+4 is the first part.  To get from C to C', you have to move up to follow the y-axis, meaning another positive.  Counting the units from (2, -5), because that is the point after x+4, there are 3 units.  So, (x+4, y+3).  

Please help! And I need the steps too!

Answers

Answer:

-25

Step-by-step explanation:

Step 1: 2-9-5-3-2-[tex]2^{3}[/tex]

Step 2: 2-9-5-3-2-8

Step 3: -25

I need help solving

Answers

Step-by-step explanation:

Divide a percentage by 100% to convert it.

=> (1/20%) / 100% = 0.0005 or 1/2000.

If you combine 4x and -2x how many x's will we have left?​

Answers

Answer:

Step-by-step explanation:

4x+(-2x)=2x

Which lines or segments are parallel

Answers

AD & BE
because those two lines are parallel to each other

Answer:

Step-by-step explanation:

AC ║ BD and AD║BE because they form the same angles when they intersect the same line CE

find x PLEASE HELPPP RIGHT NOW

Answers

Answer:

the answer is 34 degrees

it will be x=180-146 degrees

PLEASEEEEEE HELPP ME EEEE :)

Answers

It’s true:) hope this helps
Pretty sure it’s True

Pls help I am failing this class

Answers

alnejskjsksskksksskskskkskj

Answer:

39 i think

Step-by-step explanation:

which equation matches the graph of the greatest integer fiction giving below? a p e x

Answers

Answer:

A P E X  < CS

Step-by-step explanation:

simple

Write the equation of the line passing through the point (3, 5) that is
PEREPENDICULAR to y = -3/4x + 5 in slope-intercept form.

Answers

Answer:

Step-by-step explanation:

perp. 4/3

y - 5 = 4/3(x - 3)

y - 5 = 4/3x - 4

y = 4/3x + 1

10.
10. The sum of the interior angles of a polygon is 2,340°
How many sides does the polygon have?
I
11
11. What is the measure of each interior angle of a
regular pentagon?
12. The exterior angles of any polygon add to
12

Answers

Answer:

Step-by-step explanation:

10.   To solve for this, use the formula: 180*(n-2)

So, 180(n-2) = 2,340

Once n is solved for, that is the number of sides

11. Use the formula:

[180*(n-2)]/n

    (n represents the number of sides)

12. Think of the sum of all interior angles in a quadrilateral

help Find value of ST, Geometry problem

Answers

13 because the scale factor is 1/3

Answer:

It would be 13.

Step-by-step explanation:

How many lines of symmetry does a star like this ⭐️ Have?

Answers

Answer:

This line symmetery has Five lines

7a - 4a for a = 8 Anyone know the answer?

Answers

Answer:

the answer is 24

Step-by-step explanation:

hoped I helped:)

The value of the expression for x=8 is 24

What are like and unlike terms in an expression?

In Algebra, the like terms are defined as the terms that contain the same variable which is raised to the same power. In algebraic like terms, only the numerical coefficients can vary. We can combine the like terms to simplify the algebraic expressions

Given here: The expression as 7a-4a

Now combining the like terms we get

7a-4a=3a

for a=8

we have

3a=3×8

   =24

Hence, The value of the expression for x=8 is 24

Learn more about like and unlike terms here:

https://brainly.com/question/29078851

#SPJ2

Ricardo ran 160 minutes last week at the park. If he runs 15% more this week,
how many total minutes will Ricardo run this week?

Answers

Answer:

Im pretty sure its 184 minutes

Subtract f(x) and g(x) when:
f(x) = 3.2 + 2x - 8 and g(x) = 72 – 8x + 4
f(x) - g(x) =

Answers

Step-by-step explanation:

The answer is

[tex]10x - 80.8[/tex]

please help, and i will mark you BRAINLIEST
If x = 4, solve this equation: 3x = ______? *

A. 14
B. 8
C. 16
D. 12

Answers

D. 12 hopes this helps you

Can someone help me with this question pls and thank you

Answers

Answer:

x>2

Step-by-step explanation:

Longer than two hours is >.

X>2 is the answer I think

help please will give brainliest

Answers

Answer:

i think its c not sure

Step-by-step explanation:

There are 1,240 skittles in a bag, 25% are blue, .22 are red, 1/3 yellow and 1/5 are purple. Which color is least likely to be picked?

Answers

purple is the correct answer

Step-by-step explanation:

[tex] \frac{1}{3} = 0.3333...[/tex]

[tex] \frac{1}{ 5} = 0.2[/tex]

[tex]25\% = 0.25[/tex]

0.22=0.22

[tex]0.2 < 0.22 < 0.25 < 0.33...[/tex]

0.2 (1/5)/ purple is the least likely.

Your father uses text messaging to communicate with his employees. If he sends an average of 19 text messages each day, how many more text messages does he send than you? Write an equation and solve for the unknown value.

Answers

Answer:

father sends 7 more

19-12=7

Step-by-step explanation:

Answer:

father sends 7 more

19-12=7

Step-by-step explanation:

19-12=7

Find the area of the composite figure?


Answers

Answer:

128

Step-by-step explanation:

Let's start by figuring out the last side of the triangle

we can use the pathagoryous theroem and get

11.9²+x²=16.9²

Solve this and get x=12

Let's now compute the area of the triangle

b*h*.5

12*11.9*.5=71.4

So 71.4 is the area of the triangle

we now need to find the area of the semi circle.

to do this we are going to find the area and then divide it by 2

We know that the length is equal to 12 which means that the radius is 6

so we have

π6²/2

which is 56.55

We add the 71.4+56.55= 127.94 which rounds to 128

Answer:

212.758

Step-by-step explanation:

Find the semi-circle first, the diameter is 16.9 ft.

To find area:

Formula:

pi x radius x radius x 1/2

16.9 ÷ 2 = 8.45 (radius)

22/7 x 8.45 x 8.45 = 224.407 (Circle)

224.407 ÷ 2 = 112.203 (Semi circle)

Find the triangle:

1/2 x base x height or length x base x height

But for now, we will use the first one.

1/2 x 16.9 x 11.9 = 100.555

Now add them up.

100.555 + 112.203 = 212.758

(I don't know what units you to put for your answer since I don't learn American mathematics, so it's up to you)

Solve equation by using the quadratic formula.
2 x squared minus 5 x = 7
a.
x = StartFraction 2 Over 7 EndFraction, negative 1
c.
x = StartFraction 7 Over 2 EndFraction, negative 1
b.
x = StartFraction 2 Over 7 EndFraction, 0
d.
x = StartFraction 2 Over 7 EndFraction, 1

Answers

Answer:

Do you need all of them?

Step-by-step explanation:

Answer:

C) x=7/2,-1

Step-by-step explanation:

just took the pretest got this right

At a hot dog stand they serve regular hot dogs and footling hot dogs at a ratio of 5 to 3. Based on this ratio how many footlong hot dogs will be served if there is a total of 120 hot dogs served.

Answers

Answer:
45
Step-by-step explanation:
Ratio is 5:3
So total ratio "parts" is 5 + 3 = 8
In total there are 120 dogs served, so each part is:
120/8 = 15 dogs
Since, footlong hot dogs are "3" parts, and each part is 15 dogs, there will be:

3 * 15 = 45 footlong hotdogs

Andrea spins the arrow on the spinner one time.
What is the probability that the arrow will land on a part of the circle that has a star?
O A O
C.
OB. 1
OD. 1

Answers

My Answer for your question is

A. O

Find the perimeter of a
square that has a side
length of x +5.
x + 20
2x + 10
4 + 20
PLEASE HELP MEE FAST

Answers

It should be 4(x+5) which gives 4x+20
4x+20 is the answer

10. The sum of two numbers is 102. One number is three less than twice the other.
What are the two numbers?

Answers

Answer:

(2n -3) + n = 102

2n - 3 + n = 102

3n - 3 = 102

3n = 105

n = 35 (the first number)

SO...

The other number is (2 x 35) - 3 =

                                           70 - 3 = 67 (the second number)

The numbers are 35 and 67.

35 + 67 = 102 CHECK!

7th grade math please helpp i have alot of questions due in 10mins​

Answers

Answer:

V=247.8

Step-by-step explanation:

V=whl

V = (4.2)(5)(11.8)

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