Mathematics College

you pay $2 to play a game in which you roll one fair die. If you roll a 5 on the first roll, you win $5. If you roll a 1 or 2, you win $3 . If not you lose your money. Find the expected value for this game.

Answers

Answer 1
Show the online response please but I say 4
Answer 2

Answer:

the answer is 4

Step-by-step explanation:

Related Questions

37. A researcher believes that students who practice taking all of their regular tests on the computer
will do better on the State's final exam which is on the computer than the students taking their
regular tests by paper and pencil. Which would be the null hypothesis?
a.
H: The average on the state exam of the students using paper and pencil tests is greater than or
equal to the average on the state exam of the students using computer tests.
b. H.: The average on the state exam of the students using paper and pencil tests is greater than the
average on the state exam of the students using computer tests.
c. H: The average on the state exam of the students using paper and pencil tests is less than or
equal to the average on the state exam of the students using computer tests.
d. H: The average on the state exam of the students using paper and pencil tests is less than the
average on the state exam of the students using computer tests.

Answers

Answer:

D

Step-by-step explanation:

D option is correct xy=-10

if this was to u plzz mark me the brainliest

Pretty with this. this is worth 20

(GIVING BRAINLIEST!!)

Ingrid dug a trench eighteen twentieths of a meter long. The next day she dug nine twentieths of a meter more of the trench. What is a reasonable estimate of the total length of the trench?

A) one half meter
B) 1 meter
C) one and one half meters

Answers

Answer:

Solution :-

On first day, Ingrid dug eighteen twentieth of a meter = (18/20) of 1 meter = (18/20) * 1 = (9/10) meters .

Now,

→ Next day, Ingrid dug nine twentieth of a mater = (9/20) of 1 meter = (9/20) * 1 = (9/20) meters .

So,

→ Total length of the trench = Ingrid dug in first day + Ingrid dug next day = (9/10) + (9/20) = (9*2 + 9)/20 = (18 + 9)/20 = (27/20) = 1.35 meters.

Therefore,

→ Total length of the trench = 1.35m ≈ 1.00 meter .

Hence, a reasonable estimate of the total length of the trench is 1.00 meter.

so, b

Step-by-step explanation:

Answer:

2 meters

Step-by-step explanation:

Anyone know how to do this?

Answers

Answer:

It would be 10

Step-by-step explanation:

Its 10 because 12 is to long and the fact that 10 is a few inches shorter it looks correct :D

Answer:

A) 12

Step-by-step explanation:

Yes you have to do a² + b² = c²

So the bottom triangle is 3 and 4 so plug in.

4² + 3² = c² (simplify)

16 + 9 = c²

25 = c² (square root both sides)

5 = c

That gives us the vertical side of the second triangle.

So plug in again

5² + b² = 13² (simplify)

25 + b² = 169 (subtract 25 on both sides)

b² = 144 (square root both sides)

b = 12

x = 12

Hope this helps ya!!

Which situation can be modeled using a linear function?

A) the population of yeast that doubles after every minute

B) the height of a projectile after it is launched

C) the distance covered by a car moving at a constant speed

D)the cost of a printing machine that depreciates every year at 2% per year

Answers

Answer:

the distance covered by a car at a constant speed

I need help ASAP I’ll mark you brainliest if you help pls

Answers

Answer:

1 hour sorry if wrong

Step-by-step explanation:

- 4x +2=-22
X=?
Plz help

Answers

Answer:

x = 6

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

-4x + 2 = -22

Step 2: Solve for x

Subtract 2 on both sides:                    -4x = -24Divide -4 on both sides:                       x = 6

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x:                    -4(6) + 2 = -22Multiply:                               -24 + 2 = -22Add:                                     -22 = -22

Here we see that -22 does indeed equal -22.

∴ x = 6 is a solution of the equation.

|-3| |6|
Secesiones aritméticas

Answers

Answer:

what

Step-by-step explanation:

what

Suppose that 45% of all babies in a particluar hospital are boys. If 8 babies born in the hospital are randomly selected, what is the probability that fewer than of them are boys?

Answers

Answer: 0.0385 is the probability.

Step-by-step explanation:

What is the equation of a line when it is translated vertically down 4 units?

Answers

Answer:

y=[tex]x^{2}[/tex]-4

Where is the circumcenter of this obtuse triangle located? A inside the triangle B outside the triangle C on a side of the triangle D at a vertex of the triangle​

Answers

Answer: B) Outside the triangle

Step-by-step explanation:

The circumcenter of a obtuse triangle is always outside of the triangle

LOOK AT THE PICTURE TO ANSWER

Answers

I think it’s 15 I’m not sure tho
D) -65
Hope this helps

[tex]\sqrt{x} 5*\sqrt{x} 8[/tex]

Answers

There you go... this is the answer simplified

n
Which number line shows the graph of x2 11?
6
7
8
9
10
11 12 13
14
6
7
8
9
10
11
12
13
14
6
7
8
9
10 11
12 13
14
6
7
8
9
10
11
12
13
14

Answers

Answer:

11

Step-by-step explanation:

which list shows the numbers in order from least to greatest?
-2,-3-0-2-3
0,-3-2,2,3
-3-2,0,2,3
0,-2-3,2,3​

Answers

Choice 3

Step-by-step explanation:

-3 is the smallest and 3 is the biggest number

What’s 9 times 9

Just gave you 100 for free your welcome

Answers

Answer:

81!    THANK YOU<3333333333333

Answer: 81

Step-by-step explanation: 9 x 9 = 81 Obviously

whats up wate is 3000+39645

Answers

Answer:

MARK ME BRAINLIEST BRO!!!!!!!!

Step-by-step explanation:

Find the Value of X.
(Plz help, 15 points, EASY FOR GENIUS)

Answers

Answer:

27

Step-by-step explanation:

3x3= 9                   9x 3 = 27  

Total= 27

if this is not right im sorry

Answer:

i think the answer is 27.

Step-by-step explanation:

3*3=9

9*3=27

What is the 21st term of the sequence with a1 = -6 and d = 4?

Answers

Answer:

answer is 74

Step-by-step explanation:

-6+4 x 20

- 6+80=74

help please don’t know!

Answers

Answer:

2

Step-by-step explanation:

3v+4=8v-6

4=5v-6

5v=10

v=2

No I never lied hahahah

Answers

Answer:

liar

Step-by-step explanation:

Can I get a brainliest answer pls

Help now please :))))

Answers

Answer: the last one

Step-by-step explanation:

For every 3 shaded, there are 2 unshaded

VX
Mr. Chang's class has 28 students, 7 of whom are girls. Which equation shows how to determine the number of girls
in Mr. Chang's class?

Answers

28 *4/7 = 16 in Mr Chang’s class

what is 1/4(8+x+4) simplified using the distributive property

Answers

1/4(12 + x)
3 + 1/4x
The solution is 3 + 1/4x

Answer:

x4+3

Step-by-step explanation:

i think this is the answer i aint sure tho

Perform the following food service calculation.
No of diners = 240 Meat served = meat with little bone
Amount of meat required?
A. 840
B. 600
C. 69
D. 96​

Answers

Answer:C

Step-by-step explanation:

69 is the CORRECT answer

OWare

13(9−6m)+14(12m−8)
Find the sum

Answers

Answer:

=90m+5

Step-by-step explanation:

hope this helps

A librarian has 883 books to place on shelves. Each shelf holds 98 books.
How many books will be left over after filling as many shelves as possible?

Answers

Answer:

She will be able to fill 9 shelves with 1 book left over.

Let me know if you need more help! :)

Step-by-step explanation:

883/98

=9

9 books will be left

Please help! 50 points!
Consider the equation 4t + 10 = 34

(A) Write a real-world problem that can be solved using the equation.
(B) What does t represent in your scenario?

Answers

Answer:

two people are seeing how far they can throw footballs. one is younger than the other so to make it fair he steps 10 ft forward. the younger competetor throws the ball and it travels 4ft per second. it stops 34 feet from their 'base line'. how long was the football in the air?

t representing seconds

Step-by-step explanation:

i hope this makes sense

im mad tired rn

The same thing that i did last time but just replace with 34

HELPPPP!!!!!
my testt

Answers

Answer:

$8.50

Step-by-step explanation:

ok so if you divide 3.40 by 5 you get .68 and you multiply that to get 8.16 then you divide .68 to get the cost of half a pound and you get .34 so you add that to 8.16 and get 8.5.  

your answer is $8.50

hope this helps!

Answer:i know this is no help now but plz give my sister brainliest for what she did last year.

Step-by-step explanation:

Where is most of Earth’s fresh water found?

in the ground
near the poles
in lakes and streams
in the air as water vapor

Answers

Answer:

B: near the poles

Step-by-step explanation:

got it right on edge 2020

Answer:

near the poles

Step-by-step explanation:

trust me I know

Hey, can any brainliest help me?

Answers

Answer:

A

Step-by-step explanation:

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