Answer:
Expected Value= -$7Bill should not play the gameStep-by-step explanation:
In the game, these are the payout:
30% of the time you will lose 20 dollars.20% of the time you lose 40 dollars.10% of the time you win 50 dollars40% of the time you win 5 dollars.To compute the expected value, take note that a loss is negative while a win is positive.
[tex]E(X)=\sum_{i=1}x_1P(x_1)[/tex]
Therefore:
E(X)=(-20*0.3)+(-40*0.2)+(50*0.1)+(5*0.4)
E(X)=-7
The expected value of the event is -$7.Based on the negative expectation, Bill should not play this game as he is expected to incur a loss.Mikayal spent 3/8 of her savings at the store. She spent $60. How much money was in her savings before she went to the store ?
Answer:
225
Step-by-step explanation:
60 divided by 3/8 is 225
Final answer:
Mikayla spent 3/8 of her savings which was $60, so by setting up a proportion and solving it, we find that she had $160 in her savings before she went to the store.
Explanation:
Mikayla spent 3/8 of her savings which was $60. To find out how much money she had before going to the store, we can use a simple proportion. We know that the part Mikayla spent ($60) corresponds to 3/8 of her total savings. To find the whole, we set up a proportion:
3/8 = $60/Total Savings
Now, we will solve for the 'Total Savings' by multiplying both sides of the equation by the reciprocal of 3/8, which is 8/3:
Total Savings = $60 × (8/3)
Total Savings = $60 × 8 ÷ 3
Total Savings = $480 ÷ 3
Total Savings = $160
Therefore, Mikayla had $160 in her savings before she went to the store.
|BRAINLIEST|
Evan mixed orange honey and blueberry honey to make 1/5 liter of a honey mixture. Evan then poured an equal amount of his honey mixture into each of 3 jars. All of Evan's mixture went into the jars.
How much honey was in each jar?
1/15 L
1/5 L
3/5 L
3/10 L
Answer:
3/5 L
Step-by-step explanation:
Find the unit rate.
200 words in 4 min
A: 50 words per minute
B: 40 words per min
C: 30 words per min
Answer:
A 50 words per minute
Step-by-step explanation:
200 words/ 4 minutes= 50 words per minute
9. According to your model, what price should you charge to maximize profit? Explain how
you know this is the best price. (Hint: Remember that x represents change in price from $22,
not price) (3 points: 1 point for price and 2 points for explanation)
Final answer:
To maximize profit, a monopolist sets the price at the highest level consumers are willing to pay for the profit-maximizing quantity of output, found where the marginal revenue curve intersects the demand curve. This ensures significant profits are realized, as seen when comparing total revenues and total costs.
Explanation:
Maximizing Profit Through Price Setting
To determine the price to maximize profit in a monopoly, we need to understand the relationship between the monopolist's pricing strategy and their profit-maximizing output level. According to the model provided, we know that the profit-maximizing price is not directly given but can be deduced by knowing that x represents the change in price from an initial price, often the base price of $22 in a given scenario. To find the optimal price, a monopolist will look at the profit-maximizing quantity of output first, which is found at the point where marginal revenue equals marginal cost.
Once they have that quantity, they will determine the price consumers are willing to pay by extending a line up from this quantity to intersect the demand curve on a graph (referred to as the 'dotted line'). The intersection on the demand curve represents the highest price consumers are willing to pay for that quantity of goods, which is the optimal price. For example, if the model shows 5 units as the profit-maximizing quantity and the average cost for producing the units is $330, then the firm would charge $800 per unit, since it's the market Willingness to pay as shown in the demand curve, leading to total revenues of 5 x $800 = $4000, with profits calculated as $4000 - (5 x $330 = $1650) = $2350. A monopolist can sustain such profits due to barriers that protect its market from entry by competitors.
Therefore, the best price to charge in order to maximize profit is one that corresponds to this profit-maximizing output on the firm's demand curve, which is above the average cost and allows the firm to realize significant profits.
Solver for x, solver similar triangles(Advance)
Answer:
x=3
Step-by-step explanation:
its a right triangle
Answer:
The answer is 3. X= 3 because it's a right angle.
Step-by-step explanation:
hope it helps
plzzzzzzzzzzzz help quick
An advertising agency is hired by a local car dealership to determine the most popular SUV model among past customers of the dealership. The agency decides to use a systematic random sampling method.
Which of the following describes the method the agency can use?
Answer:B
by-step explanation:I did the quiz
Solve for X, rounding to the nearest hundredth.
25x = 6
Answer: 0.24
Step-by-step explanation: You need to solve and get x by itself, so you would divide 25 on both sides of the equal sign. This would give you x=6/25 or 0.24
add or subtract (m^2-m-4)+(m+5)
---------------------------------------------------------
(m^2-m-4)+(m+5)
Remove parentheses:
m^2-m-4 + m+5
Group like terms:
m^2-m+m-4+5
Add similar elements:
m^2-4+5
Add/subtract the numbers:
m^2+1
Your Answer Is m^2+1
plz mark me as brainliest if this helped :)
A rectangular prism has a length of 7 m, a height of 5 m, and a volume of 140 m3. What is the width?
A prism has a length of 7 meters, width of w, and height of 5 meters.
Which steps are correct? Check all that apply.
Substitute the known values into the formula:
140 = 7(w)(5).
Substitute the known values into the formula:
7 = 140(w)(5).
Substitute the known values into the formula:
5 = 7(w)(140).
Solve for the unknown: w = 4 m.
Solve for the unknown: w = 7 m.
Solve for the unknown: w = 2 m.
Answer:
A & D
Step-by-step explanation:
Answer:
A and D
The other person is correct
Lines a and b are parallel. What is the value of x?
1) 15
2) 16
3) 56
4) 64
Answer:
2) 16
Step-by-step explanation:
180 - 124 = 56
180 - 56 - 60 = 64
64 ÷ 4 = 16
x = 16
Answer:
yes it is B: 6
Step-by-step explanation:
hope this helps! have a nice day
can someone help me to find the area?
Answer:
the answer is 23.14 if you use pi and is 23.13 if you use 3.14
Step-by-step explanation:
Answer:
23.14 squared meters or 13.5π squared meters
Step-by-step explanation:
Solve for X 3 (x+1)=9
Answer:
x=2
Step-by-step explanation:
3(x+1)=9
3x+3=9
3x=6
x=2
evaluate the expression for q=8
7q
Answer:
56
Step-by-step explanation:
7q
Let q = 8
7*8
56
A store is giving out cards labeled 1 through 10 when customers enter the store. If the card is an even number, you get a 10% discount on your purchase that day. If the card is an odd number greater than 6, you get a 40% discount. Otherwise, you get a 20% discount. The table shows the results of 400 customers. What is the relative frequency for each discount? Use pencil and paper. If the manager of the store wants approximately half of the customers to receive the 20% discount, does this seem like an appropriate method? Explain.
Answer:
Step-by-step explanation:
The answer was :0.496
??? Idk how to do thus
Answer:
(-17)³
..........
Plot √2 and √3 on the number line.
Which statements are true? Check all that apply.
StartRoot 2 EndRoot < 2
StartRoot 2 EndRoot < StartRoot 3 EndRoot
StartRoot 2 EndRoot > 1.5
StartRoot 3 EndRoot < 3
StartRoot 2 EndRoot is about 0.5 less than StartRoot 3 EndRoot.
StartRoot 3 EndRoot is about 0.3 greater than StartRoot 2 EndRoot.
Answer:
The statements (1), (2), (4) and (6) are true.
Step-by-step explanation:
Consider the diagram below for the number line.
The first statement is: [tex]\sqrt{2}<2[/tex]From the number line it is clear that the above statement is true.
The second statement is: [tex]\sqrt{2}<\sqrt{3}[/tex]From the number line it is clear that the above statement is true.
The third statement is: [tex]\sqrt{2}>1.5[/tex]The value of √2 is 1.414. This value is less than 1.5.
So, the above statement is false.
The fourth statement is: [tex]\sqrt{3}<3[/tex]From the number line it is clear that the above statement is true.
The fifth statement is: [tex]\sqrt{2}=\sqrt{3}-0.5[/tex]The value of √3 is 1.732. The difference between √2 and √3 is, 0.318.
Thus, the above statement is false.
The sixth statement is: [tex]\sqrt{3}=\sqrt{2}+0.3[/tex]The value of √3 is 1.732. The difference between √2 and √3 is, 0.318.
Implying, √3 = √2 + 0.318.
⇒√3 = √2 + 0.3
Thus, the above statement is true.
1,2,4,6 are the correct options.
Two lines going the exact same way that will never intersect are?
A.Triangles
B.Vertical Lines
C.Angles
D.Parallel Lines
HELP PLZZ
Answer:
These lines are parallel!
Step-by-step explanation:
So D, parallel lines :)
Help me! Mathematics, quick, I'm on Time Limit!
Thank you all very much!
A circle with radius 9 has a sector with a central angle of 120°.
What is the area of the sector?
120º is 1/3 of a complete revolution of 360º. So the area of this sector should be 1/3 the area of the complete circle.
A circle with radius 9 has area 9^2 π = 81π.
So the sector has area 81π/3.
Put another way: The area A of a circular sector and its central angle θ (in degrees) occur in the same ratio as the area of the entire circle with radius r according to
A / θ º = (π r ^2) / 360º
==> A = π/360 θ r ^2
In this case, r = 9 and θ = 120º, so
A = π/360 * 120 * 81 = 81π/3
if a box of 10 organic capri sun drinks costs $13.92, what is the unit rate? (who ever has right answer first gets brainlest!)
Answer: Unit rate for capri sun drinks is 1.39
Step-by-step explanation: The unit rate is the Constant of proportionality so you would have to find the cost of one product or the worth so I divided 13.92 by 10 to find the unit rate and estimated to the nearest hundredths because money does not go out to the hundredths.
Hope I helped out <3
-Carrie
Please help sorry if it’s blurry
Answer:
a
Step-by-step explanation:
Maria drops a hammer from an apartment that is 30 meters above the ground. The
height of the hammer in meters, h, after t seconds is modeled by the function
h(t) = -t - 2t + 30. Find the approximate number of seconds it will take for the
hammer to hit the ground. Round your answer to the nearest whole number.
A.0
B.5
C.10
D.30
Answer:
C. 10 s.
Step-by-step explanation:
When the hammer reaches the ground the height is 0 m, so:
-t - 2t + 30 = 0
-3t = -30
t = -30/-3
= 10 seconds.
compare 0.02 to 0.020
Answer:
They are the same.
Step-by-step explanation:Does not matter how many zeros you add it will be the same value.
0.02 to 0.020 both are the same it does not matter how many zeros you add it will be the same value.
What is a fraction?A fraction represents a part of a number or any number of equal parts.
Expanding into fractions 0.02 to 0.020, add zeros
2/100 and 2/100
They both are the same it does not matter how many zeros you add it will be the same value.
Learn more about fractions;
https://brainly.com/question/10708469
Which numbers are solutions of the inequality? Choose all that apply.
Answer:
It's a d e gg g g g g g g g g g g g g
Please help! I will mark you as brainlinest!
Answer:
A is 29 miles and B is 18 miles
Step-by-step explanation:
Set up 2 equations involving A and B and solve simultaneously, that is
5A + 2B = 181 → (1)
2A + 3B = 112 → (2)
Multiply (1) by 3 and (2) by - 2 to eliminate B
15A + 6B = 543 → (3)
- 4A - 6B = - 224 → (4)
Add (3) and (4) term by term to eliminate B
(15A - 4A) + (6B - 6B) = 543 - 224, that is
11A = 319 ( divide both sides by 11 )
A = 29
Substitute A = 29 into either of the 2 equations and solve for B
Substituting into (1)
5(29) + 2B = 181
145 + 2B = 181 ( subtract 145 from both sides )
2B = 36 ( divide both sides by 2 )
B = 18
Thus
Route A is 29 miles long and Route B is 18 miles long.
Answer: for the answer above me give em the crown he deserves it
Step-by-step explanation:
NEED GRAPH HELP PART 1 AND 2
Answer:
1/2
Step-by-step explanation:
A line is drawn through (-7, 11) and (8, –9). The equation
y - 11 = - 4(x + 7) is written to represent the line. Which
equations also represent the line? Check all that apply.
3y = - 4x + 40
4x + y = 21
4x + 3y = 5
-4x + 3y = 17
The options A and C represent the same line as the given equation.
A: 3y = - 4x + 40
C: 4x + 3y = 5
To verify which equations represent the same line as the given equation y - 11 = -4 (x + 7), we can first convert the given equation into slope-intercept form y = mx + b, where m is the slope and b is the y-intercept.
Given equation:
y - 11 = -4 (x + 7)
Expanding and rearranging:
y - 11 = -4x - 28
y = -4x - 28 + 11
y = -4x - 17
Now, let's compare this equation with the options:
A. 3y = -4x + 40
To convert it to slope-intercept form:
y = [tex]-\frac{4}{3}x + \frac{40}{3}[/tex]
B. 4x + y = 21
To convert it to slope-intercept form:
y = -4x + 21
C. 4x + 3y = 5
To convert it to slope-intercept form:
3y = -4x + 5
y = [tex]-\frac{4}{3}x + \frac{5}{3}[/tex]
D. -4x + 3y = 17
To convert it to slope-intercept form:
3y = 4x + 17
y = [tex]\frac{4}{3}x + \frac{17}{3}[/tex]
Comparing all the equations with the original equation y = -4x - 17, we find that options A and C have the same slope-intercept form as the original equation.
The question is:
A line is drawn through (-7, 11) and (8, –9). The equation y - 11 = - 4(x + 7) is written to represent the line. Which equations also represent the line? Check all that apply.
A. 3y = - 4x + 40
B. 4x + y = 21
C. 4x + 3y = 5
D. -4x + 3y = 17
The only equation that represents the same line as the given equation y - 11 = - 4(x + 7) is -4x + 3y = 17, as it has the same slope and y-intercept when simplified.
To determine which equations also represent the line through the points (-7, 11) and (8, -9), we must ensure they have the same slope and y-intercept as the given line equation y - 11 = - 4(x + 7). First, we simplify the given equation to the slope-intercept form (y = mx + b):
y = -4x - 28 + 11
y = -4x - 17
The slope (m) is -4, and the y-intercept (b) is -17. Now, let's compare the other equations:
3y = - 4x + 40
y = - 4/3x + 40/3Slope: -4/3 (doesn't match)Y-intercept: 40/3 (doesn't match)4x + y = 21
y = -4x + 21Slope: -4 (matches)Y-intercept: 21 (doesn't match)4x + 3y = 5
3y = -4x + 5y = -4/3x + 5/3Slope: -4/3 (doesn't match)Y-intercept: 5/3 (doesn't match)-4x + 3y = 17
3y = 4x + 17y = 4/3x + 17/3Slope: 4/3 (matches)Y-intercept: 17/3 (matches after converting the fraction)The only equation that has both the slope and y-intercept identical to the given line's equation after simplification is -4x + 3y = 17.
You are playing a board game and your playing piece
begins the game at START. You roll a single number
cube numbered 1 to 6 to find out how many spaces
you can move.
What are the possible outcomes of your first roll?
simplify the expression. (6^2)^4
Answer:
(2^4•3^2)
Step-by-step explanation:
Step 1 :
1.1 6 = 2•3
(6)2 = (2•3)2 = 2^2 • 3^2
Step 2 :
2.1 2^2 multiplied by 2^2 = 2(2 + 2) = 2^4
Final result :
(2^4•3^2)
Answer:6^8
Step-by-step explanation:
HURRY PLEASE!!!!!!!!!!! A graph shows the horizontal axis numbered 1 to 5 and the vertical axis numbered 1 to 5. Points and a line show an upward trend. Which is most likely the correlation coefficient for the set of data shown? –0.65 –0.19 0.19 0.75
The correct answer is option B) –0.19.
What does a correlation coefficient mean?
A correlation coefficient is a statistical measure of the degree to which changes to the value of one variable predict changes to the value of another. In positively correlated variables, the value increases or decreases in tandem.
What is a perfect correlation?
A relationship between two variables, x, and y, in which the change in the value of one variable is exactly proportional to the change in the value of the other. That is, knowing the value of one variable exactly predicts the value of the other variable (i.e., rxy = 1.0).
Learn more about correlation coefficient here: brainly.com/question/4219149
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Answer:
c
Step-by-step explanation: