Quotient Property (or Logarithm of a Quotient).
According to this property:
\(undefined\)There is a 30% chance that it rains on Saturday. If it rains, the probability that Sarina will go to
the store on Saturday is .12. If it doesn't rain, the probability that she will go to the store is .53.
Let R represent "it rains and S represent "going to the store".
a. Sketch a tree diagram to
represent this scenario.
b. P(S) = ?
c. P(S') = ?
d. P(S | R) = ?
e. P(R' | S') = ?
This can be solved by finding the probability and using the Bayes' theorem. However, there is a 34.7% chance that Sarina will go to the store on Saturday, and a 65.3% chance that she will not. If it rains on Saturday, there is a 10.3% chance that Sarina will go to the store, and if she doesn't go to the store, there is a 20.3% chance that it did not rain that day.
a. Tree Diagram
A tree diagram is a visual representation of the different possible outcomes of a sequence of events. Each branch represents an event, and the probability of that event is written above the branch. The branches that lead to the same final outcome are grouped together. For this scenario, we can start with the event of whether it rains or not, then branch out to whether Sarina goes to the store or not based on each possibility.
b. To find P(S), we need to use the law of total probability:
P(S) = P(R) * P(S | R) + P(R') * P(S | R')
= 0.3 * 0.12 + 0.7 * 0.53
= 0.347
So there is a 34.7% chance that Sarina will go to the store on Saturday.
c. P(S') is simply the complement of P(S):
P(S') = 1 - P(S)
= 1 - 0.347
= 0.653
So there is a 65.3% chance that Sarina will not go to the store on Saturday.
d. To find P(S | R), we can use Bayes' theorem:
P(S | R) = P(R | S) * P(S) / P(R)
= P(R and S) / P(R)
= 0.3 * 0.12 / 0.347
= 0.103
So if it rains, there is a 10.3% chance that Sarina will go to the store on Saturday.
e. To find P(R' | S'), we can again use Bayes' theorem:
P(R' | S') = P(S' | R') * P(R') / P(S')
= (1 - P(S | R')) * 0.7 / 0.653
= (1 - 0.53) * 0.7 / 0.653
= 0.203
So if Sarina does not go to the store on Saturday, there is a 20.3% chance that it did not rain that day.
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Please help I'm stuck
Answer:
I'm stuck to.
Step-by-step explanation:
is there suppose to be an angle or a triangle?
Covert, how many lb. If = 3,200 oz
Answer:
200 lbs.
Step-by-step explanation:
Divide mass value by 16 to convert oz to lbs.
3,200/16=200
Which number line shows the solutions to x > 5?
OA. 8642 8 2 4 6 8
OB. 864-2 0 2 4 6 8
8-64-202468
4-202468
D. Pls help
Answer:
b.
Step-by-step explanation:
The inequality says that x is bigger than 5. The number line shows the arrow starting from 5 and going bigger. Therefore, that number line is correct.
The ratio of boys to girls in a group is 5:1 if there are 60 more boys than girls work out how many people there are in total
Answer:
90.
Step-by-step explanation:
If the number of girls = x then the number of boys = x+60 and the total is 2x + 60.
As the ratio of boys to girls = 5:1, the fraction of boys = 5/6 and of girls is 1/6.
So x = 1/6(2x + 60)
x = 1/3x + 10
2/3 x = 10
x = 10*3/2 = 15.
So the total number of people = 2(15) + 60 = 90.
Find the x- and y-intercepts of the parabola y=−x2+4x−4.
Answer:
Hope This Helps!
Step-by-step explanation:
Kwame is given the graph below.
Which of the following best describes the graph?
a quadratic equation with differences of 1, then 2, then 4, ...
an exponential function with a growth factor of 2
a quadratic function with a constant difference of 2
an exponential function with growth factors of 1, then 2, then 4, ..
The best description of the graph is "a quadratic function with a constant difference of 2."
A quadratic function is a function of the form f(x) = ax^2 + bx + c, where a, b, and c are constants. In a quadratic function, the graph forms a parabola.
In the given graph, if the differences between consecutive points on the graph are constant and equal to 2, it indicates a constant difference in the y-values (vertical direction) as the x-values (horizontal direction) increase. This is a characteristic of a quadratic function.
On the other hand, an exponential function with a growth factor of 2 would result in a graph that increases at an increasing rate, where the y-values grow exponentially as the x-values increase. This is not observed in the given graph.
Therefore, based on the information provided, the graph best represents a quadratic function with a constant difference of 2.
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Can you find the lengths and areas, use the box on the right to help you find the correct answer.
Let's find the lengths and areas of the given figures.
• Question 1
Area of a:
Figure a has the shape of a square.
To find the area, let's find the side length, which is the hypotenuse of triangle b.
Apply Pythagorean Theorem:
\(c^2=a^2+b^2\)Where:
\(\begin{gathered} a=\sqrt[]{9}=3m \\ b=\sqrt[]{16}=4m \end{gathered}\)Thus, we have:
\(\begin{gathered} c^2=a^2+b^2 \\ \\ c^2=3^2+4^2 \\ \\ c^2=9+16 \\ \\ c^2=25 \\ \\ \text{Take the square root of both sides:} \\ \sqrt[]{c^2}=\sqrt[]{25} \\ \\ c=5 \end{gathered}\)The side length of a is = 5 m
Therefore, to find the area of a, apply the formula for area of a square:
\(\begin{gathered} A=l^2 \\ \\ A=5^2 \\ \\ A=25m^2 \end{gathered}\)Therefore, the area of a is 25 square meters
• Question 2
Length of b
b is the hypotenuse of the triangle, which is also the side length of figure a.
Therefore, the length of b is 5 m
• Question 3.
Length of C
To find the length of c, apply Pythagorean Theorem:
\(144=81+c^2\)Let's solve for c from the equation:
Subtract 81 from both sides:
\(\begin{gathered} 144-81=81-81+c^2 \\ \\ 63=c^2 \\ \\ \text{Take the square root of both sides:} \\ \sqrt[]{63}=\sqrt[]{c^2}^{} \\ \\ 7.94=c \\ \\ c=7.94 \end{gathered}\)Therefore, the length of c is 7.94 m
Question 4:
Area of d.
Figure d is a traingle.
To find the area, apply the formula:
\(A=\frac{1}{2}bh\)Where:
Base, b = length of c = 7.94
Height, h = √81 = 9 m
Thus, we have:
\(\begin{gathered} A=\frac{1}{2}\ast7.94\ast9 \\ \\ A=3.97\ast9 \\ \\ A=35.75m^2 \end{gathered}\)Therefore, the area of b is 35.73 square meters.
ANSWER:
1. H) 25
2. I) 5
3. A) 7.94
4. B.) 35.73
How do i graph y=4x + 5
Answer:
it would look like the picture below
Step-by-step explanation:
A store owner decided to collect data on his customers. On one day he observed:
48 people bought 1 item
32 people bought 2 or more items
16 people did not buy anything
Based on the data from that day, what is the probability that the next person to visit
the store will buy 2 or more items?
5
25
16
No links
Answer:
Step-by-step explanation:
Since a total of 96 people have entered the store and 32 of them have bought 2 or more items, it is clear that the next person entering the store has a probability of 32/96 or 1/3 that he/she will buy 2 or more items.
An auto club drove a new hybrid car 442.4 miles. They refilled the gas tank with 10.2 gallons of gas. How many miles per gallon did the hybrid car get? A. 4.33 B. 4.46 C. 43.37 D. 44.63
Answer:
The correct answer is D. The hybrid car got 43.37 miles pero gallon.
Step-by-step explanation:
To determine the number of miles traveled for each gallon of gasoline consumed by the car, the number of miles traveled must be divided by the number of gallons consumed.
Thus, if 442.4 miles were traveled and 10.2 gallons of gasoline were consumed, the following calculation should be performed:
442.4 / 10.2 = X
43.37 = X
Therefore, for every gallon consumed 43.37 miles were traveled.
Answer
The answer is C
Step-by-step explanation:
The current in a river is 1.0 meters/second. Britney swims 300 meters against the current. If she normally swims with a speed of 2.0 meters/second in still water, how long does it take her to complete the trip?
A.
100 seconds
B.
200 seconds
C.
400 seconds
D.
300 seconds
Answer: D. 300 seconds
2-1=1 which means if Britney is swimming 2 m/s against a current of 1 m/s, she will be swimming at 1 m/s
Answer:
If Britney can average 2.0 m/s for 300 m At that speed for just a 100 m Long course, she could have the Record at 50.0 s, and that's assuming the turn doesn't affect her speed in a negative way. The current Record for 100 m Freestyle for women is: 52.07 s.
So your answer is 100 seconds,
Step-by-step explanation:
I hope this helps.
one unit of a is made of two units of b, three units of c, and two units of d. b is composed pf one unit of e and two units of f. c is made of two units of f and one unit of d. e is made of two units of d. items a, c, d, and f have one-week lead times; b and e have lead times of two weeks. lot-for-lot (l4l) lot sizing is used for items a, b, c, and d; lots of size 50 and 180 are used for items e and f, respectively. item c has on-hand (beginning) inventory of 15; d has an on-hand inventory of 50; all other items have zero beginning inventories. we are scheduled to receive 20 units of item e in week 2; there ae no other scheduled receipts. construct simple and low-level-coded bill-to-materials (product structure tree) and indented and summarized parts lists. if 20 units of a are required in week 8, use the low-level-coded bill-of-materials to find the necessary planned-order releases for all components.
Data handling is the process of ensuring that research data is stored, archived, or disposed of in a safe and secure manner during and after the conclusion of a research project.
The following are the given details:
Item Leadtime On hand Inventory Lot sizing criteria Schedulereceipts
A 2 0 L4L 10 in week 2
B 1 0 LAL 0
C 1 10 50 0
D 2 0 50 0
E 1 50 180 50 in week 1
F 1 180 L4L 50 in week 1
The Complete MRP schedule can be seen in the attached images below:
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The gross requirements for each component are as follows:
b = 2 x a = 44 units in week 7
c = 3 x a = 66 units in week 7
d = 2 x e + 1 x c + 2 x a
= 110 units in week 3, 56 units in week 6, 44 units in week 7
e = 1 x b = 44 units in week 5
f = 2 x b + 2 x c = 88 units in week 5 and 112 units in week 6
Net requirements = Gross requirements - Projected on hand
Projected on hand = Planned order receipts - net requirements
Planned order receipts = net requirements
Planned order releases = net requirements adjusted as per the lead time
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Triangle LMIN with vertices L(2, -8), M(12, 8),
and N(14,-4): * = ½
The vertices of triangle image are L'(1, -4), M'(6, 4) and N'(7, -2).
Given that, triangle LMIN with vertices L(2, -8), M(12, 8) and N(14,-4).
Here, scale factor k=1/2
Now, by applying scale factor to the vertices, we get
L(2, -8)→1/2 (2, -8)→L'(1, -4)
M(12, 8)→1/2 (12, 8)→M'(6, 4)
N(14,-4)→1/2 (14, -4)→N'(7, -2)
Therefore, the vertices of triangle image are L'(1, -4), M'(6, 4) and N'(7, -2).
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"Your question is incomplete, probably the complete question/missing part is:"
Triangle LMIN with vertices L(2, -8), M(12, 8), and N(14,-4): k = ½.
Which graph displays points that correspond to the x and y values in the table?
hm this is weird, i thought i answered the question. or maybe they're two different questions? line graph because i said so. i know im so helpful
A farmer creates a maze with bales of hay. The data set below represents the number of minutes it takes children of various ages to complete the maze.
4,4,6, 11, 11, 12, 14, 14, 21, 21, 24, 26
Which of the following histograms correctly displays this data set?
The Histogram is attached blow.
What is Histogram?A histogram is a representation of statistical data that makes use of rectangles to illustrate the frequency of data items in a series of equal-sized numerical intervals. The independent variable is represented along the horizontal axis and the dependent variable is plotted along the vertical axis in the most popular type of histogram.
Given:
Data: 4,4,6, 11, 11, 12, 14, 14, 21, 21, 24, 26
So, Interval Frequency
0- 5 4 , 4 (2)
5-10 6(1)
10- 15 11, 11, 12, 14, 14
15- 20 _
20- 25 21, 21, 24
25- 30 26
Hence, the Histogram is attached blow.
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Solve (2^2x+1)-9(2^x)+4=0
x₁ = - 1
x₂ = 2
Step-by-step explanation:2²ˣ⁺¹ - 9ₓ2ˣ + 4 = 0
2²ˣₓ2 - 9ₓ2ˣ + 4 = 0
2ˣ = n
2n² - 9n + 4 = 0
2n² - n - 8n + 4 = 0
n(2n - 1) - 4(2n - 1) = 0
(2n - 1)(n -4) = 0
2n - 1 = 0 => n₁ = 1/2
n - 4 = 0 => n₂ = 4
2ˣ = 1/2 => 2ˣ = 2⁻¹ => x₁ = - 1
2ˣ = 4 => 2ˣ = 2² => x₂ = 2
A zip wire runs between two posts, 25m apart. The zip wire is at an angle of 10∘ to the horizontal. Calculate the length of the zip wire.
The length of the zip wire is approximately 25.42 meters.
To calculate the length of the zip wire, we can use trigonometry and the given information about the angle and the distance between the two posts.
Given:
Distance between the two posts: 25m
Angle of the zip wire to the horizontal: 10°
We can use the trigonometric function cosine (cos) to find the length of the zip wire. Cosine relates the adjacent side to the hypotenuse of a right triangle.
In this case, the adjacent side is the distance between the two posts (25m) and the hypotenuse is the length of the zip wire that we want to calculate.
Using the cosine function:
cos(angle) = adjacent/hypotenuse
cos(10°) = 25m/hypotenuse
To find the hypotenuse (length of the zip wire), we can rearrange the equation:
hypotenuse = 25m / cos(10°)
Using a calculator or trigonometric tables, we can find the value of cos(10°) to be approximately 0.9848.
Therefore, the length of the zip wire is:
hypotenuse = 25m / 0.9848 ≈ 25.42m
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Garrett and Jeffrey are planning a treasure hunt. They decide to place a treasure at
a point that is a distance of 5 units from the -axis and 3 units from the -axis.
Jeffrey places a treasure at point J, and Garrett places one at point G.
Who put the treasure in the right place?
A Garret, he put the treasure at (3, 5)
B Jeffery, he put the treasure at (5, 3)
C Garret, he put the treasure at (5, 3)
D Not here
Answer:
Step-by-step explanation:
8. Suppose that the time that a new roof will last before needing to be replaced follows a normal distribution, with a mean of 25 years and a standard deviation of 5 years. Estimate the percentage of roofs that will last(a) between 15 and 35 years. %(b) longer than 35 years. %(c) less than 20 years. %(d) between 10 and 35 years. %
Problem Statement
The question tells us that the number of years new roofs last follows a normal distribution with a mean of 25 and a standard deviation of 5 years.
We are asked to find the following percentages of:
a) between 15 and 35 years.
b) longer than 35 years.
c) less than 20 years
d) between 10 and 35 years.
Method
To solve this question, we need to take note of two formulas. The first is how to calculate the z-score of the individual years, and the other is how to calculate the z-score for a range of years.
Z-score for Individual years:
\(\begin{gathered} Z=\frac{X-\mu}{\sigma} \\ \text{where,} \\ X=\text{individual year} \\ \mu=\text{mean of the normal distribution} \\ \sigma=\text{standard deviation} \end{gathered}\)Z-score for a range of years:
\(\begin{gathered} Z_1Let us apply these formulas to solve the question.
Implementation
a) Between 15 and 35 years:
\(\begin{gathered} Z_1=\frac{15-25}{5} \\ Z_1=-2 \\ \\ Z_2=\frac{35-25}{5} \\ Z_2=2 \\ \\ \text{Thus, the percentage between 15 and 35 years is given as:} \\ P(-2b) longer than 35 years:
\(\begin{gathered} 35\text{ years is 2 standard deviations away from the mean. Thus from the table given, we can conclude that} \\ \text{the percentage greater than 35 years is:} \\ \\ \frac{100-95}{2}=2.5\text{ \%} \end{gathered}\)c) less than 20 years:
\(\begin{gathered} 20\text{ years is 1 standard deviation from the mean.} \\ \text{Thus, we have:} \\ \frac{100-68}{2}\times100=16\text{ \%} \end{gathered}\)d) between 10 and 35 years:
\(\begin{gathered} 10\text{ is 3 standard deviations away from the mean of 25.} \\ Thus,\text{ we have:} \\ 10\text{ accounts for }\frac{99.7}{2}\text{ \% of the range from 10 to 35} \\ =49.85\text{ \%} \\ \\ 35\text{ is 2 standard deviations from the mean of 25.} \\ \text{Thus, we have:} \\ 35\text{ accounts for }\frac{95}{2}\text{ \% of the range from 10 to 35} \\ =47.5\text{ \%} \\ \\ \text{Thus, the entire range is:} \\ 49.85\text{ \% + 47.5\% = 97.35\%} \end{gathered}\)Crane Corporation is considering purchasing a new delivery truck. The new truck would cost $55,440. The new truck is expected to generate a cost savings of $7,700. At the end of 8 years, the company will sell the truck for an estimated $27,600.
Traditionally the company has used a rule of thumb that a proposal should not be accepted unless it has a payback period that is less than 50% of the asset's estimated useful life. Larry Newton, a new manager, has suggested that the company should not rely solely on the payback approach, but should also employ the net present value method when evaluating new projects. The company's cost of capital is 8%.
a) Compute the cash payback period and net present value of the proposed investment.
b) Does the project meet the company's cash payback criteria?
c) Does it meet the net present value criteria for acceptance?
A. The payback period is 7.2 years. The net present value of the proposed investment is 3720.55.
B. No, the project does not meet the company's cash payback criteria.
C. Yes, the project does meet the net present value criteria for acceptance.
How do we solve for the net present value of the proposed investment?A. The truck costs $55,440 and generates annual cost savings of $7,700. So the payback period is the cost of the truck divided the expected amount the truck will generate.
$55,440 / $7,700 = 7.2 years
To solve for the net present value, we say
Net Present Value = ∑ [(Cash inflow in period t) / (1 + \(r^{t}\)] - Initial Investment.
NPV = (($7,700 / (1 + 0.08)¹) = 7 129.63
+ ($7,700 / (1 + 0.08)²) = 6601.51
+ .($7,700 / (1 + 0.08)³ = 6112.51
+ ($7,700 / (1 + 0.08)⁴) = 5659.73
+ ($7,700 / (1 + 0.08)⁵) = 5240.49
+ ($7,700 / (1 + 0.08)⁶) = 4 852.31
+ ($7,700 / (1 + 0.08)⁷) = 4492.88
+($7,700 / (1 + 0.08)⁸) = 4160.07
+ ($27,600 / (1 + 0.08)⁸)) = 14911.42
- $55,440
We add all these values together and subtract by $55,440
7 129.63 + 6601.51 + 6112.51 + 5659.73 + 5240.49 +4 852.31 + 4492.88 + 4160.07 + 14911.42 - $55,440
59160.55 - 55,440
NPV = 3720.55
B. The cash payback period of the project is 7.2 years. The company's cash payback criteria state that a project should not be accepted unless it has a payback period that is less than 50% of the asset's estimated useful life, which would be 4 years which is 50% of 8 years. Since 7.2 years is greater than 4 years, the project does not meet the company's cash payback criteria.
C. The positive NPV of $3,720.55 shows that embarking on the prooject will be valuable to the company. This means the project meets the NPV criteria for acceptance.
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71 x 103 in scientifc notation
Answer:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
7.313×10^3
Step-by-step explanation:
HELP ME PLEASEEEEEEEEEE
Answer:
The perimeter of rectangle JKLM is 16 units.
Step-by-step explanation:
Perimeter is the area around the shape, so if you look at the space between K and J, the units there are 7. Multiply 7 by 2 (since there are two sides), and then add 2. 2 + 14 = 16.
Answer:
17 units
Step-by-step explanation:
can u mark me as brainliest?
Angie completes 80% of her homework problems before practice. She was assigned 30 problems. How many problems were completed before basketball practice
Answer:
B. 24 problems
Step-by-step explanation:
Did it on edge, hope this helps :)
A right triangle and two of its side lengths are shown in the diagram. 39 cm 12 cm x cm Which measurement is closest to the value of x in centimeters?
A: 37.1 cm
B: 51 cm
C: 27 cm
D: 40.8 cm
Answer:
Hey Army! The correct answer would be A. 37.1cm
Step-by-step explanation:
I got this correct on my test :)
(-2) (4+6)+(-2) 6 / (-2) (4-1) simplified
The simplified form of the expression is \(-32\).
To simplify the expression, we can perform the calculations written below step by step:
\(\(\frac{{-2(4+6)+(-2)6}}{{-2(4-1)}}\)\)
We follow the order of operations (PEMDAS/BODMAS):
Step 1: Simplify within parentheses:
\(\(4+6 = 10\)\).
Step 2: Perform multiplications and divisions from left to right:
\(\(-2(10) = -20\) and \(-2(4-1) = -2(3) = -6\)\).
Step 3: Evaluate the remaining additions and subtractions:
\(\(-20 + (-2) \cdot 6 = -20 - 12 = -32\)\).
Therefore, the simplified form of the expression \(\(\frac{{-2(4+6)+(-2)6}}{{-2(4-1)}}\) is \(-32\).\)
When simplifying an expression, several factors need consideration. First, apply the order of operations correctly, respecting parentheses and exponents. Next, combine like terms by adding or subtracting them. Distribute and simplify within parentheses or brackets as needed. Pay attention to negative signs and ensure their proper placement.
Finally, review the simplified expression to ensure accuracy and validity within the given context.
Note: The complete question is:
\(\(\frac{{-2(4+6)+(-2)6}}{{-2(4-1)}}\)\), calculate the simplified form of this expression.
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Find the perimeter of a rectangular garden that has a width of 4x−6 and a length of 2x+4.
Answer:
perimwter = 2(4x-6 + 2x+4) = 2 (6x-2) = 12x-4
Enter the slope of the line through the points (4, 15) and (4, 12). *
Answer:
-3/0 is the slope....or just -3.
Step-by-step explanation:
slope method = m= y2 - y1/ x2 - xm = 12 - 15/ 4 - 4 = -3/0 or just -3 simplified.
I really need help! Brainliest awarded to correct answer
:))
Answer:
Can you be more specific on this question?
Step-by-step explanation:
1 point
8. Jaquan makes 7 catches for every 12 footballs thrown to him during an
NFL football game. What is the ratio of catches to non-catches for Jaquan
during the game? *
5:7
7:5
7:19
7:12
Answer:
your answer is D becuase for every 12 throws, he catches 7. therefore 7:12
Step-by-step explanation: