Answer:
15 x^3 z^5/ 3x^7 z^-5
15/3×x^(3-7)×z^(5+5)
5×x^-4×z^10
5z^10/x^4
The table displays the scores of students on a recent exam. Find the mean of the scores to the nearest 10th.
Mean of the data = 83.92
Mean of data:The term "mean" refers to the average of the data and is derived by dividing the total number of data observations in the data by the total number of observations.
It is a data point that represents the average of all the data points in the collection. The most popular and commonly applied approach in statistics for determining the middle of a data collection is the mean.
Here given data is
No of students(f\(_{i}\)) 4 3 9 2 3 3 4
Score (x\(_{i}\)) 70 75 80 85 90 95 100
f\(_{i}\) x\(_{i}\) 280 225 720 170 270 285 400
The formula for the mean of the data is given by
∑ f\(_{i}\) x\(_{i}\) / ∑f\(_{i}\)=> ∑ f\(_{i}\) x\(_{i}\) = 280 + 225 + 720 + 170 + 270 + 285 + 400 = 2350
=> ∑f\(_{i}\) = 4 + 3 + 9 + 2 + 3 + 3 + 4 = 28
=> Mean of the data = 2350/28 = 83.92
Therefore,
The Mean of the data = 83.92
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f(x) = -0.822 + 3.3x + 3.7
Answer:
The given expression is not a complete equation or function. It seems like a linear function, but it is missing an input variable and an equal sign.
A linear function in the form of y = mx + b, where y is the output, x is the input, m is the slope, and b is the y-intercept.
Without the input variable, we cannot evaluate the function. Can you please check if you have provided the complete equation or function?
Step-by-step explanation:
Amir operates a large lobster boat. The operating cost for the boat is $2.250 each day. At the end of each day, he sells all his freshly caught lobster to either the local restaurant or the local grocery store with the following conditions:
• The price per pound that the restaurant is willing to pay follows a triangular distribution with minimum value $1.50, maximum value $5.50, and likeliest value $3.50.
• The price per pound that the grocery store is willing to pay is decreasing with more lobsters: $3.85 - 50.0005 * y, where y is the total lobster amount sold in pounds.
• The amount of lobster that Amir catches in a single day follows a normal distribution with mean 1,500 pounds and standard deviation sqrt(12,500) pounds.
Amir decides to sell a fixed percentage of lobster to the local restaurant and the rest to local grocery stores. Using either math or simulation, can you help Amir determine what percentage he should choose in order to maximize his expected profit in the long run?
Previous question
The expected profit in the long run can be determined by calculating the expected value of the total revenue from selling the lobsters. The expected total revenue is the sum of the expected revenue from selling the lobsters to the restaurant and the from selling the lobsters to the grocery store.
The expected value of the revenue from selling the lobsters to the restaurant can be calculated by multiplying the expected price per pound from the restaurant by the expected amount of lobsters caught in a day. The expected price per pound from the restaurant follows a triangular distribution with minimum value $1.50, maximum value $5.50, and likeliest value $3.50. The expected amount of lobsters caught in a day follows a normal distribution with mean 1,500 pounds and standard deviation sqrt(12,500) pounds.
The expected value of the revenue from selling the lobsters to the grocery store can be calculated by multiplying the expected price per pound from the grocery store by the expected amount of lobsters caught in a day. The expected price per pound from the grocery store is decreasing with more lobsters: $3.85 - 50.0005 * y, where y is the total lobster amount sold in pounds. The expected amount of lobsters caught in a day follows a normal distribution with mean 1,500 pounds and standard deviation sqrt(12,500) pounds.
Given the expected values of the total revenue from selling the lobsters to the restaurant and the grocery store, Amir can use simulation to determine the optimal percentage of lobsters to sell to the restaurant in order to maximize his expected profit in the long run. He can run several simulations with different percentages of lobsters to be sold to the restaurant and compare the expected profits for each simulation. The percentage that produces the highest expected profit is the optimal percentage for Amir to maximize his expected profit in the long run.
Amir can use simulation to determine the optimal percentage of lobsters to sell to the restaurant in order to maximize his expected profit in the long run. He can calculate the expected value of the total revenue from selling the lobsters to the restaurant and the grocery store, and then run several simulations with different percentages of lobsters to be sold to the restaurant to compare the expected profits for each simulation. The percentage that produces the highest expected profit is the optimal percentage for Amir to maximize his expected profit in the long run.
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Write the equations of the fully simplified slop-intercept form.
Answer:
y = -6x - 4
Step-by-step explanation:
Using two points on the line, (0, -4) and (-1, 2),
\( Slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{2 - (-4)}{-1 - 0} = \frac{6}{-1} = -6 \)
m = -6
y-intercept (b) = -4 (the value of y when x = 0)
To write the equation, substitute m = -6, and b = -4 into y = mx + b
y = -6x - 4
Do the ordered pairs in the table represent a linear function?
Answer:
No.
Step-by-step explanation:
If you look at the y values, they do not have a constant rate of change. The numbers in the row for y: 3+1 is 4. 4+1 is 5. 5+7 is 12 .12+19 is 31. 31+ 37 is 68. So, as you can see, the rates at which each number changes are not constant. Therefore, the table does not represent a linear function.
give all possible values of l for a 2 sublevel. a) 2 b) -1/2 c) 0, 1 d) -1, 0, 1 e) 1, 2
The possible values of l for a 2 sublevel, ranging from -2 to 2 .
For a 2 sublevel, the possible values of the orbital angular momentum quantum number, l, can be determined using the selection rule:
l = -ℓ, -ℓ + 1, ..., ℓ - 1, ℓ,
where ℓ is the principal quantum number.
In this case, the principal quantum number is 2. Therefore, the possible values of l are:
-ℓ = -2
-ℓ + 1 = -1
-ℓ + 2 = 0
ℓ - 1 = 1
ℓ = 2
The possible values of l are: -2, -1 , 0 , 1 , 2
Each of these options includes the possible values of l for a 2 sublevel, ranging from -2 to 2 .
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While following a treasure map, you start at an old oak tree. You first walk 825 m directly south, then turn and walk 1.25 km at 30.0" west of north, and finally walk 100 km at 40.0" north of east, where you find the treasure: a biography of Isaac Newton?
The final position after following the treasure map is 144.38 km at 28.1" east of north, and you can find that treasure in a biography of Isaac Newton.
To answer the question, you need to use trigonometry and vectors to calculate the total distance travelled and the final position. First, draw a triangle with the initial point being the old oak tree. Label the sides of the triangle as A (825 m south), B (1.25 km at 30.0" west of north), and C (100 km at 40.0" north of east).
Using trigonometry, you can calculate the distance A = 825 m, B = 1.58 km, and C = 143 km. The total distance you travelled is A + B + C = 825 m + 1.58 km + 143 km = 144.38 km.
To calculate the final position, you can use vectors. Vector A is in the South direction and has magnitude 825 m. Vector B is at 30.0" west of north and has magnitude 1.58 km.
Vector C is at 40.0" north of east and has magnitude 143 km. Calculate the resultant vector of the three vectors (A, B, and C) to get the final position. The resultant vector has a magnitude of 144.38 km and a direction of 28.1" east of north.
Therefore, the final position after following the treasure map is 144.38 km at 28.1" east of north, and the treasure you find is a biography of Isaac Newton.
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What is the approximate area
Answer:
2827.43in²
Step-by-step explanation:
formula for area of a circle is r²π with r being the radius (30 in this case)
we can plug in 30 for r to solve for the area
30²π
900π
2827.43
that is the answer
- kan academy advance
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST (last answer is 8)
Answer:
question 8 = 6cm
Step-by-step explanation:
\(formula (perimeter)= \\ sum \: of \: all \: sides \\ \\ 3x + 3x + x + x = 48 \\ 3(6) + 3(6) + 6 + 6 = 48 \\ 18 + 18 + 6 + 6 = 48\)
I need help with 32 x 134partial product
32 x 134
Partial product: Multiply each digit of 32 by each digit of 134, maintain each digit place.
(30x100) + (30x 30) + (30 x4)+ (2 x 100) + (2x30) + (2 x 4)
3,000 + 900+120+200+60+8 = 4,288
please help meh on this for points and brainliest
Answer:
13 is two and two thirds of four and seven eighths.
Step-by-step explanation:
To solve this, all you need to do is divide 13 by 2 and two thirds. Let's do it:
\(13 \div 2\frac{2}{3}\\= 13 \div \frac{8}{3}\\= 13 \times \frac{3}{8}\\= \frac{13 \times 3}{8}\\= \frac{39}{8}\\= 4\frac{7}{8}\)
Answer:
4.875
Step-by-step explanation:
2 2/3=266.666666666667
266.666666666667% of 4.875 = 13
What is the value ???????
Help!
Answer:
please give brainiest
thank you
Answer:
Its 16 (-1/2)^-4=16 then
Answer Needed THX!!! :3
Answer:
\(\frac{7}{24}\)
Step-by-step explanation:
We can solve like so:
\(1-\frac{3}{8}-\frac{1}{3}=mushroomcaps\\\\\frac{24}{24} -\frac{9}{24}-\frac{8}{24} =mushroomcaps\\\\\frac{15}{24}-\frac{8}{24}=mushroomcaps\\\\\frac{7}{24}=mushroomcaps\)
\(\frac{7}{24}\) of the barbecued items are mushroom caps.
Answer:
E. \(x=\frac{7}{24}\)
Step-by-step explanation:
\(\frac{3}{8} + \frac{1}{3} +x = 1\\\)
\(\frac{3*3}{8*3} + \frac{1*8}{3*8} +x = 1\\\\\frac{9}{24} + \frac{8}{24} +x = 1\\\\\frac{17}{24} +x=1\\\)
\(x=1-\frac{17}{24}= \frac{24}{24}-\frac{17}{24} =\frac{7}{24}\\ x=\frac{7}{24}\)
1. Classify the following numbers as rational or irrational.
a) √45 b) √55 c) √196 d) √576 e) √27
Can u guys answer this question pls
Answer:
a) irrational
b) irrational
c) rational
d) rational
e) irrational
Note:
rational numbers are numbers that can be expressed in fractions.
irrational numbers are numbers that cannot be expressed in fractions i.e. they are never-ending-non-repeating decimals. examples √2, pi etc.
an employee makes $18.00 per hour. given that there are 52 weeks in a year and assuming a 40-hour work week, calculate the employee's yearly salary.
The employee's yearly salary is calculated as $37,440 using the arithmetic operations.
The employee earns $18 per hour and works 40 hours per week. To calculate the weekly salary, we multiply the hourly wage by the number of hours worked:
Weekly salary = Hourly wage × Hours worked per week
Weekly salary = $18/hour × 40 hours/week = $720
Next, to calculate the yearly salary, we use the multiplication operation the weekly salary by the number of weeks in a year:
Yearly salary = Weekly salary × Weeks in a year
Yearly salary = $720/week × 52 weeks/year = $37,440
Therefore, the employee's yearly salary is $37,440. This calculation assumes a 40-hour work week and 52 weeks in a year. It's important to note that this calculation does not account for overtime pay or any other additional benefits or deductions that may affect the employee's total annual income.
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Alonzo split 3/4 pounds of candy among 4 people. What is the unit rate in pounds per person? Write your answer in simplest form.
(10 points, brainliest, thanks and 5 if correct! IF! also it is due today)
When Alonzo splits 3/4 pounds of candy among 4 people the unit rate in pounds per person is 3/16 pounds per person
What is unit rate?The ratio of two measures, with one as the second of the item, is known as unit rate.
For the problem where Alonzo have to split 3/4 pounds of candy, the unit rate is solved by division.
In this case, Alonzo will divide each the 3/4 pounds by 4 to get a value of which is the unit rate
The unit rate of candy in pounds per person
= 3/4 pounds / 4 persons
= 3/16 pounds per person
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Toilet rolls come in a pack of 4 and 9 the 4-pack is priced at £2.04 and the 9- pack is priced at £4.68 . By calculating the price per roll, determine which pack is better value
4pack price plus 9pack price
so it implies that 2.o4+4.68=6.72
A backcountry airport has a runway that is 150 feet long. Approximately 75 feet past the runway is a large
grove of trees that average in height around 100 feet tall. What angle of elevation must a pilot take in
order to avoid crashing into the trees? Round to the nearest hundredths.
Select an answer
Question Help: Message instructor
To find the angle of elevation, we need to determine the height of the plane relative to the trees, and then use the tangent function to find the angle. Let's call the height of the plane "h".
We can set up a right triangle with the height of the plane, the distance from the runway to the trees, and the height of the trees.
We have:
h / (150 + 75) = 100 / h
Solving for h, we find that:
h = 125
So the height of the plane relative to the trees is 125 feet.
Now we can use the tangent function to find the angle:
tan(angle) = 100 / 125
angle = tan^-1(100 / 125)
angle = approximately 53.13 degrees
Rounding to the nearest hundredths, the angle of elevation that the pilot must take to avoid crashing into the trees is 53.13 degrees.
find the equation of the median from b in ABC whose vertices are (1,5), B(5,3) and C(-3, -2)
Answer:
y = x + 6
x = 1
y = ¼(x - 5) + 3
Step-by-step explanation:
Vetices are;
A(1,5), B(5,3) and C(-3, -2)
Thus;
Median of AB is; D = (1 + 5)/2, (5 + 3)/2
D = (3, 4)
Median of BC is; E = (5 + (-3))/2, (3 + (-2))/2
E = (1, 0.5)
Median of AC is; F ; (-3 + 1)/2, (-2 + 5)/2
F = (-1, 1.5)
Thus, the median lines will be;
CD, AE & BF.
Thus;
Equation of CD is;
(y - (-3))/(x - (-2)) = (-2 - 4))/(-3 - 3)
(y + 4)/(x + 2) = -6/-6
y - 4 = 1(x + 2)
y = 4 + x + 2
y = x + 6
Equation of AE;
(y - 5)/(x - 1) = (0.5 - 5)/(1 - 1)
(y - 5)/(x - 1) = -4.5/0
Cross multiply to get;
0(y - 5) = -4.5(x - 1)
-4.5x = -4.5
x = 1
Equation of BF;
(y - 3)/(x - 5) = (1.5 - 3)/(-1 - 5)
(y - 3)/(x - 5) = -1.5/-6
(y - 3)/(x - 5) = 1/4
y - 3 = ¼(x - 5)
y = ¼(x - 5) + 3
A grinding process has an upper specification of 1.649 inches and a lower specification of 1.507 inches. A sample of parts had a mean of 1.57 inches with a standard deviaiton of 0.026 inches.
Round your answer to four decimal places.
What is the process capability index for this system?
Answer:
The process capability index for this system is 0.9103
Step-by-step explanation:
Upper specification = 1.649 inches
Lowe Specification = 1.507 inches
Mean = 1.57 inches
Standard Deviation = 0.026 inches
Process Capability Index = PCI
PCI = (Upper specification - lower specification)/6(standard deviation)
So, we get,
PCI = (1.649 - 1.507)/((6)(0.026))
PCI = 0.142/0.156
PCI = 0.9102564
To four decimal places, we get,
PCI = 0.9103
Gabe went to the florida mall. He bought k model planes and spent 24 on books.Then he another 25 at another store
Answer:
\(Amount = 49 + 14.99k\)
Step-by-step explanation:
Given
\(Books = 24\)
\(Another\ Store = 25\)
\(Model = k\)
Cost of \(Model = 14.99\) --- Missing from the question
Required
Represent the amount spent
The amount is calculated as:
\(Amount = Books + Another\ Store + Model * Cost\)
\(Amount = 25 + 24 + k * 14.99\)
\(Amount = 49 + 14.99k\)
HELP ASAP NO ROCKY PLEASE
m<1 is 50
m<2 is 130
m<3 is 50
m<4 is 130
m<5 is 40
m<6 is 140
m<7 is 90
m<8 is 140
WELCOME TO AUSTIN TEXAS ASAP LMFMSMSNS BYE
Evaluate the definite integral. (Give an exact answer. Do not round.) ∫3 0 e^2x dx
The value of the definite integral ∫(from 0 to 3) \(e^{(2x)\) dx is \((1/2)(e^6 - 1).\)
To evaluate the definite integral, you'll need to find the antiderivative of the function \(e^{(2x)\) and then apply the limits of integration (0 to 3).
The antiderivative of \(e^{(2x)\) is \((1/2)e^{(2x)\), since the derivative of \((1/2)e^{(2x)\) with respect to x is \(e^{(2x)\). Now, you can apply the Fundamental Theorem of Calculus:
∫(from 0 to 3) \(e^{(2x)\) dx = \([(1/2)e^{(2x)]\)(from 0 to 3)
First, substitute the upper limit (3) into the antiderivative:
\((1/2)e^{(2*3)} = (1/2)e^6\)
Next, substitute the lower limit (0) into the antiderivative:
\((1/2)e^{(2*0)} = (1/2)e^0 = (1/2)\)
Now, subtract the result with the lower limit from the result with the upper limit:
\((1/2)e^6 - (1/2) = (1/2)(e^6 - 1)\)
So, the exact value of the definite integral is:
\((1/2)(e^6 - 1)\)
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A rectangle is seven times as long as it’s width. One way to write an expression to find the perimeter would be m+7m+m+7m. Write the expression in two other ways.
Step-by-step explanation:
Perimeter = 2 m + 2 * 7m
Perimeter = 2 ( m + 7m)
Perimeter = 2m + 14m
Perimeter = 16 m Pick any of them
Without using a calculator, determine between which two integers the following surds lie (1)√5 (2) √1 (3)√107 (4)√3
Answer:
Step-by-step explanation:
Graph g(x) = 2x² - 72 and f(x) = 2x². Compare the characteristics graph g to the graph of f
and identify the zeros of each function.
Make a table of points.
f(x) = 2x²
x
-6
-3
0
3
6
g(x) = 2x² - 72
1
11
65
-10 -8 -6 -4 -2-5
-15
-25
-35
55
45
35
25
15
5
y
-45
-55
-65
2
4
6 8
Functions g(x) = 2x² - 72 and f(x) = 2x² are graphed below g(x) is graphed by shifting f(x) downwards 72 units.
What is quadratic function?A quadratic function is a polynomial function with one or more variables whose highest exponent is 2. It is also called a quadratic polynomial because the highest order term of a quadratic function is quadratic. A quadratic function has at least one quadratic term. It's an algebraic function.
Given functions,
g(x) = 2x² - 72
f(x) = 2x²
Graph of the functions are drawn as follows:
f(x) is the parent function of g(x)
f(x) is shifted 72 unit down to get g(x)
Table for points of function g(x)
vertex is at (0, -72)
x y
1 -70
2 -64
Table for points of function f(x)
vertex is at (0, 0)
x y
1 2
2 8
3 18
Hence, graphs of the function g(x) = 2x² - 72 and f(x) = 2x² are attached below. f(x) is shifted 72 unit downwards to get g(x).
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If f(x) = 2x – 1 and g(x) = 3x + 5, then (fog)(x) is equal to
This problem is about the composition of functions.
The given functions are
\(f(x)=2x-1,g(x)=3x+5\)The expression
\((f\circ g)(x)\)means that we have to replace g(x) inside f(x), as follows
\((f\circ g)(x)=f(g(x))=2(3x+5)-1\)Now, we solve the expression
\((f\circ g)(x)=6x+10-1=6x+9\)Therefore, the composition is
\((f\circ g)(x)=6x+9\)PLEASE I NEED HELP
What is the slope-intercept form of the linear equation 2x + 3y = 6?
Answer:
y= 2/3x + 2
Step-by-step explanation:
Directions: Multiply, divide, and simplify the following exponential expressions.
Pls help
uptown bank will lend you $22,200 at 6.9 percent, compounded monthly, to purchase a car. if you finance the car for 48 months, what will be the amount of each monthly payment?
a. $593.60
b. $549.08
c. $578.38
If the Uptown bank lends $22200 at 6.9% , then the amount of each monthly payment is (d) $530.57 .
The amount that Uptown bank will lend is = $22200 ,
the rate is = 6.9% ,since it is compounded monthly ,
So , monthly rate is = 6.9%/12 = 0.00575 ,
the time for which the car is financed is = 48 months ,
So , to calculate the monthly payment, we can use the formula:
⇒ P = (PV × r)/(1 - (1 + r)⁻ⁿ)
Where P is monthly payment, PV is present value of loan, r = monthly interest rate, and n = number of payments.
In this case, PV = $22200, r = 6.9%/12 = 0.00575 (monthly interest rate), and n = 48.
Substituting these values in monthly payment formula, we get:
⇒ P = (22200×0.00575)/(1 - (1 + 0.00575)⁻⁴⁸)
⇒ P ≈ $530.57
Therefore, the monthly payment will be approximately $530.57 . The correct answer is (d) $530.57 .
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The given question is incomplete , the complete question is
Uptown bank will lend you $22,200 at 6.9 percent, compounded monthly, to purchase a car. if you finance the car for 48 months, what will be the amount of each monthly payment?
(a) $593.60
(b) $549.08
(c) $578.38
(d) $530.57