The maximum profit is $201,600 when 60 items are sold.
To find the number of items that will produce a maximum profit, we need to find the value of x that maximizes the profit function P(x). We can do this by taking the derivative of P(x) with respect to x and setting it equal to zero to find the critical points:
\(P'(x) = 3600 + 120x - 3x^2 = 0\)
Solving this quadratic equation gives us two values of x:
x = -20 or x = 60
However, x can't be negative in this case since we can't sell negative items. Therefore, the only valid critical point is x = 60.To confirm that this is indeed a maximum point, we can take the second derivative of P(x) and evaluate it at x = 60:
\(P''(x) = 120 - 6x\)
\(P''(60) = 120 - 6(60) = -240 < 0\)
Since the second derivative is negative at x = 60, this confirms that x = 60 is a maximum point.Therefore, selling 60 items will produce the maximum profit.To find the maximum profit, we can simply plug in x = 60 into the profit function:
\(P(60) = 3600(60) + 60(60)^2 - (60)^3 - 72,000\)
\(= $201,600\)
So, the maximum profit is $201,600 when 60 items are sold.
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The PTA has 180 packs of soda to sell. Each pack of soda cost $9.99. The PTA sold 95 packs of soda before school. The remaining packs of sodas were sold after school. How much money did the PTA collect when selling sodas after School?
Let's begin by listing out the information given to us:
PTA has 180 soda packs to sell = 180 soda packs
Each pack of soda cost $9.99 = $9.99 /soda
PTA sold 95 packs of soda before school = 95 soda packs
To find how much money the PTA collected after school, we will have to find the number of soda packs sold after school
To get the number of soda packs sold after school, subtract the number of soda packs sold before school from the total number of soda packs.
Mathematically,
Number of soda packs sold after school = 180 - 95 = 85 soda packs
How much money did the PTA collect when selling sodas after School = Number of soda packs sold after school * Cost of each soda pack
= 85 * 9.99 = $849.15
this is one of the two questions I have please help
Divide and Simplify:
16 2/3 divided by 1/6
Answer: 16 2/3 divided by 1/6= 100
Will mark BRAINLIEST :) Write an equation in point slope form that pass through the points: (-5,-2), (-2,-4)
M= ?
(X,y) = ?
Step-by-step explanation:
-5(-2,-4)
10,20
-2(-2,-4)
4,8
answer:10,20 and 4,8
Which question could be used to find the value of x in the triangle below?
Answer:
b: 12x=180
Step-by-step explanation:
10 and -10 cancel , so only 12x is left. and every triangle is 180 degrees. so you just set them equal
Write 2.5kg : 1500g as a ratio in its simplest form
The standard deviation of the salaries of the employees at a company is $ thousand. If all the employees receive a $ thousand raise, will the standard deviation decrease, increase, or stay the same?
Using the concept of standard deviation, it is found that the standard deviation of the data-set will remain the same.
-----------------------------------
The mean of a data-set is given by the sum of it's observations, divided by the number of observations.The standard deviation is given by the square root of the sum of the differences squared of each observation and the mean, divided by the one less than the number of values.If all observations are increased by a value x, the mean will also increase by x.In the standard deviation, at the sum of the differences squared of each observation and the mean, each observation is increased by x, as is the mean, thus, the sum stays the same, while the standard deviation also stays the same.A similar problem is given at https://brainly.com/question/18342323
you design a new app for cell phones. your revenue for x downloads is given by f(x)=3x. your profit is $20 less than 90% of the revenue for x downloads create a function p to model the profit. find the profit for 90 downloads
Answer:
The Break Even point is the point at which the cost=revenue 14,980+20x=30x 14,980=10x 1,498=x a. 1,498 units must be sold to break even. At $20 per unit, the dollar amount will be $29,960 b. The profit function is P(x)=R(x)-C(x) So P(x)=30x-(14,980+20x) If you want to solve for this equation just enter the value of x we found for the break even point to get the answer.
Hoped I helped
The profit for 90 downloads will be;
⇒ P = $223
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Your revenue for x downloads is given by,
⇒ f(x) = 3x
And, Your profit is $20 less than 90% of the revenue for x downloads create a function p to model the profit.
Now,
Since, Your revenue for x downloads is given by,
⇒ f(x) = 3x
And, Your profit is $20 less than 90% of the revenue for x downloads create a function p to model the profit.
Hence, We can formulate;
⇒ P = 90% of f (x) - 20
⇒ P = 90/100 × 3x - 20
⇒ P = 270x/100 - 20
⇒ P = 2.7x - 20
So, The profit for 90 downloads will be;
⇒ P = 2.7 × 90 - 20
⇒ P = $223
Thus, The profit for 90 downloads = $223
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Suppose you conduct one experiment and find that the e = mc3, rather than the historically accepted formula, e = mc2. what should you do next?
We will repeat the exact same procedure. Something may have gone wrong.
The special theory of relativity by German-born scientist Albert Einstein contains the equation \(E=mc^{2}\), which conveys the idea that mass and energy are one and the same physical substance and may be transformed into one another. The kinetic energy (E) of a body is equal to its increased relativistic mass (m) multiplied by the square root of the speed of light.
Because the mass and the speed of light are both constants, we are unable to test a new variable. Since our findings don't match the accepted formula, we cannot share them.
The result obtained is wrong we cannot apply it to another experiment. The only way we can find the correct result is by repeating the experiment. Because something may have gone wrong on the first attempt.
Therefore, the correct answer is
d) Repeat the exact same procedure.
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The correct question is: Suppose you conduct one experiment and find that the \(E=mc^{3}\), rather than the historically accepted formula, \(E=mc^{2}\). What should you do next?
a.Test a new variable
b.Share your findings
c.Apply your results to a new experiment
d.Repeat the exact same procedure
The sampling distribution used when making inferences about a single population variance is?
We use the chi-square distribution when making inferences about a single population variance.
Short Description of Chi-Square Distribution
The continuous probability distribution known as the chi-square distribution. The number of degrees of freedom (k) a chi-square distribution has determines its shape. This type of sampling distribution has a variance of 2k and a mean equal to its number of degrees of freedom (k). The range is of a chi-square distribution is from 0 to ∞.
Variance plays a key role in the analysis of risk and uncertainty. The sample variance, an unbiased estimator of population variance, is expressed by the following formula of core statistic for a sample size 'n' and Y' as the sample mean:
S² = ∑(Yₓ - Y') / (n-1)
The formula, (n-1)S² / σ² has the central chi-square distribution as χ²ₙ₋₁. Here (n-1) represents the degrees of freedom.
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what's carbon dioxide?
Answer:
Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms. It is often referred to by its formula CO2. It is present in the Earth's atmosphere at a low concentration and acts as a greenhouse gas.
Step-by-step explanation:
There is also more to know about this. It's also a chemical.
Write the following using algebraic notation, using the letter x for any unknown numbers:
i think of a number, halve it, then subtract four.
Answer:
1/2x-4
Step-by-step explanation:
Since we don't know the number (unknown) we simplify it as a variable, x.
Then since you're taking half of x, place 1/2 next to x. Finally subtract 4, and it concludes to 1/2x-4.
(x, 7) and (-7, 4); slope: 1
Answer: x= -4
Step-by-step explanation: slope = (y2-y1)/(x2-x1).
(4-7)/(-7-x)
-3/-7-x=1
Multiply both sides by -7-x
-3=-7-x
Add 7 to both sides
4=-x so x = -4
Question Progress
1272
Simplify the following surds
a) 18
b) 12
c) 32
Will mark brainliest answer
Answer:
___________________________________________________________
FACTS TO KNOW BEFORE SOLVING :-
To simplify a surd , ensure that the number is expressed in such a way that it is the product of factors.Try to express the number as the product of 2 or more perfect squares (if any) because it makes the process of simplifying the surd easier.___________________________________________________________
According to the question ,
a) \(\sqrt{18} =\sqrt{9 \times 2} = \sqrt{9} \times \sqrt{2} = 3\sqrt{2}\)
b) \(\sqrt{12} =\sqrt{4 \times 3} = \sqrt{4} \times \sqrt{3} = 2\sqrt{3}\)
c) \(\sqrt{32} = \sqrt{16 \times 2} = \sqrt{16} \times \sqrt{2} = 4\sqrt{2}\)
A concrete pillar has the shape of a cylinder. It has a radius of 4 meters and a height of 7 meters. If concrete costs $94 per cubic meter, how much did the concrete cost for the pillar? Use 3.14 for π , and do not round your answer.
Answer:
C = $33,057.92
The cost of the pillar is $33,057.92
Step-by-step explanation:
Given;
Radius of the concrete r = 4 m
Height h = 7 m
Cost per volume R = $94 per cubic meter
π = 3.14
The volume of the cylinder shape concrete is;
V = πr^2 h
Substituting the given values;
V = 3.14×4^2 × 7
V = 351.68 m^3
The cost of the pillar is C;
C = Volume × cost per volume
C = V × R
C = 351.68 m^3 × $94 per cubic meter
C = $33,057.92
The cost of the pillar is $33,057.92
any1 help me i 3 questions i haven’t done yet pls help!!!
Solve the quadratic equation using the quadratic formula or completing the square. Show exact answers in simplified, radical form; no rounded decimals.
2x² - 4x +3=0
By solving the equation by the method of completing the squares, it can be obtained that
\(x = 1 + \sqrt{\frac{1}{2}}i\) or \(x = 1-\sqrt{\frac{1}{2}}i\) are the solutions.
What is Quadratic equation?
At first it is important to know about equation
Equation shows the equality between two algebraic expressions by connecting the two algerbraic expressions by an equal to sign.
A two degree equation is known as Quadratic equation.
Here the method of completing the squares is used.
\(2x^2 - 4x +3=0\)
\(2(x^2 - 2x + \frac{3}{2})=0\\x^2 - 2x + \frac{3}{2}=0\\x^2 - 2x + 1^2 -1^2+\frac{3}{2}=0\\(x - 1)^2+\frac{1}{2} = 0\\(x - 1)^2 = -\frac{1}{2}\\x-1= \sqrt{-\frac{1}{2}}\\x = 1 \pm \sqrt{\frac{1}{2}}i\)
\(x = 1 + \sqrt{\frac{1}{2}}i\) or \(x = 1-\sqrt{\frac{1}{2}}i\)
where \(i = \sqrt{-1}\)
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if ∫−2−1f(x)dx=−5 and ∫15g(x)dx=4, what is the value of ∫∫df(x)g(y)da where d is the rectangle: −2≤x≤−1, 1≤y≤5?
The value of ∫∫df(x)g(y)da is -20.
The value of ∫∫df(x)g(y)da, where d is the rectangle: −2≤x≤−1, 1≤y≤5, is 20.What is the solution to the given problem?The given problem is about calculating the value of ∫∫df(x)g(y)da, where d is a rectangle. The limits for x and y are given.
We have to use the given values to find the solution. We have to solve it step-by-step:Step 1: Find the value of f(x)The value of ∫−2−1f(x)dx=−5By definition of integration, we can say that:∫−2−1f(x)dx = F(-1) - F(-2)Where F(x) is the antiderivative of f(x)Taking the inverse of the equation, we can say that:F(-1) - F(-2) = ∫−2−1f(x)dxNow, we have to find the antiderivative of f(x) to find the value of F(-1) and F(-2). Let's suppose, the antiderivative of f(x) is F(x).
Then:F(x) = ∫f(x)dxSo, according to the given information, we can write:F(-1) - F(-2) = ∫−2−1f(x)dx = -5Step 2: Find the value of g(y)The value of ∫15g(x)dx=4By definition of integration, we can say that:∫15g(x)dx = G(5) - G(1)Where G(x) is the antiderivative of g(x)Taking the inverse of the equation, we can say that:G(5) - G(1) = ∫15g(x)dxNow, we have to find the antiderivative of g(x) to find the value of G(1) and G(5). Let's suppose, the antiderivative of g(x) is G(x).
Then:G(x) = ∫g(x)dxSo, according to the given information, we can write:G(5) - G(1) = ∫15g(x)dx = 4Step 3: Calculate the given expression∫∫df(x)g(y)daThe value of f(x) is not given, but the value of ∫−2−1f(x)dx is given. Similarly, the value of g(x) is not given, but the value of ∫15g(x)dx is given. So, we can replace the given values in the expression.
Then:∫∫df(x)g(y)da = ∫−2−1 ∫1^5 f(x) g(y) dydx = ∫−2−1 g(y) ∫1^5 f(x) dydxSince we have to find the value of this expression for the rectangle with limits −2≤x≤−1, 1≤y≤5, then:∫∫df(x)g(y)da = ∫−2−1 g(y) ∫1^5 f(x) dydx = ∫1^5 g(y) ∫−2−1 f(x) dxdyUsing the given information, we can replace the value of ∫−2−1 f(x)dx and ∫15g(x)dx.
Then:∫∫df(x)g(y)da = ∫1^5 g(y) (-5) dydx = -5 ∫1^5 g(y) dydxSince the given limits are rectangular, we can use the Fubini's theorem. It states that, if the function is integrable over the rectangle [a, b] x [c, d], then:∫∫[a,b] x [c,d] f(x,y) dxdy = ∫[a,b] dx ∫[c,d] f(x,y) dy = ∫[c,d] dy ∫[a,b] f(x,y) dxNow, we can change the order of integration:∫∫df(x)g(y)da = -5 ∫1^5 g(y) dydx = -5 ∫−2−1 f(x) dx ∫1^5 g(y) dydx = -5 (4) = -20Therefore, the value of ∫∫df(x)g(y)da is -20.Note: In the given question, the given limits for the rectangle are not properly defined. So, we have to consider that the limits are rectangular.
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2a²-2ab-3b²+9 when a=3 and b=2
\(\\ \sf\longmapsto 2a^2-2ab-3b^2-9\)
\(\\ \sf\longmapsto 2(3)^2-2(3)(2)-3(2)^2-9\)
\(\\ \sf\longmapsto 2(9)-12-3(4)-9\)
\(\\ \sf\longmapsto 18-12-12-9\)
\(\\ \sf\longmapsto 6-18\)
\(\\ \sf\longmapsto -12\)
Answer:
3
Step-by-step explanation:
2(3)^2 - 2(3)(2) - 3(2)^2 + 9
2(9) - 12 - 3(4) + 9
18 - 12 - 12 + 9
= 3
Answer from Gauth math
List the sides in ΔEFG in order from smallest to largest.
Step 1: Concept
To arrange the sides of a triangle from the smallest to largest, use the interior angles of the triangle.
Step 2:
The smallest angle face the smallest side and the largest angle face the largest side.
List all the given angle
m< F = 62
m< E = 63
m< G = 55
Step 3:
Angle mAngle mAngle m
Final answer
EF , EG, FG Option A
URGENT! PLEASE HELP ASAP!!
Answer:
false
Step-by-step explanation:
angles cant get tan they dont have skin
Need help ASAP please!
PLEASE HELP!!
f(x) = -x2 + x + 6
a=
b =
c=
Give f(x)=-x*2+10x-16 and g(x)=|11-2x|, find 2[f(9)-1/3[g(-5)]
The expression 2 * f(9) – g(–5) of the given functions will give us - 53.
How to plug in values into a function?We are given the functions;
f(x) = –x² + 10x – 16
g(x) = |11 – 2x² |
FInd f(9) means we plug in 9 as input value for x in the function f(x). This gives;
f(x) = –x² + 10x – 16
f(9) = -(9)² + 10(9) - 16
f(9) = -7
Find g(-5) means we plug in -5 as input value for x in the function g(x). This gives;
g(x) = |11 – 2x² |
g(-5) = | 11 - 2(-5)² |
g(-5) = | -39| = 39
Find 2 * f(9) – g(–5):
2 * f(9) – g(–5) = 2 (-7) - (39) = -53
Thus, the expression 2 * f(9) – g(–5) of the given functions will give us - 53.
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3) Find f(–1) if f(x) = –3x – 5.
Kay and Karen went on a fishing trip.Kay caught 20 fish and Karen caught 12 fish. What is the value of the ratio
which of the following statements about histograms are true? multiple choice a histogram is used to display qualitative data. the bars are drawn adjacent to each other because the data is continuous. the heights of the bars represent relative class frequencies. a histogram has gaps between the bars.
The statement "the heights of the bars represent relative class frequencies" is true. The correct answer is C.
A histogram is a graphical representation of the distribution of numerical data. It is commonly used to display the frequency distribution of continuous data in a graphical form.
The horizontal axis of the histogram represents the range of values of the variable being measured, and this range is divided into equal intervals called bins. The vertical axis represents the frequency, or the number of times a value appears in each bin.
The statement "the heights of the bars represent relative class frequencies" is also true. In a histogram, the height of each bar represents the frequency or count of data points that fall within each bin. This height is proportional to the frequency of data points within each bin, and it is often normalized to show the relative frequency of each bin.
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which of the following expressions is equivalent to the polynomial below? (8x-1)(64x^2+8x+1)
Given the expression
\((8x-1)\left(64x^2+8x+1\right)\)simplifying
\((8x)(64x^2+8x+1)-(1)(64x^2+8x+1)\)\((512x^3+64x^2+8x)-(64x^2+8x+1)\)\((512x^3)-(+1)\)\((512x^3-1)\)then the correct answer is
option A
512x^3 - 1
P L E A S E H E L P!!!!!!!!!
Answer:
The equation that matches the function shown is option;
C. \(y = sin\left (\dfrac{1}{2} \cdot x\right)\)
Step-by-step explanation:
The given graph of the function is a sinusoidal graph
The values of 'x' and 'y' coordinates at the maximum, x-intercept and minimum points are given as follows;
x, \({}\) y
0 \({}\) 0
π \({}\) 1
2·π \({}\) 0
3·π \({}\) -1
4·π \({}\) 0
We note that sin(π/2) = 1, sin(π) = 0 sin(3·π/2) = -1, and sin(4·π/2) = sin(2·π) = 0
Therefore;
y = the sine of half the x-value
Which is presented as follows;
\(y = sin\left (\dfrac{1}{2} \cdot x\right)\).
Hellllllpppppp can U do my work for me plz?!
Answer:
40 km
Step-by-step explanation:
how many significant digits are there in the following number: 0.0098 select one: a. 2 b. 3 c. 4 d. 5
The number 0.0098 has two significant digits.In scientific notation, it can be written as 9.8 x 10^(-3), where the digits 9 and 8 are significant.
The leading zeros before the 9 do not contribute to the number of significant digits. Therefore, the correct answer is option a. 2.
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