Please answer questions 15-18. They are not multiple choice, and you have to look at the line.
Answers
The probability are given as follows:
15) P (point is on N.Q.) = 6 / 13
16) P (point is not on Q.R.) = 10 / 13
17) P (point is on N.Q. or RS) = 10/13
18) P = 1/54
What is the explanation for the above?
15)
To find the probability that the point is on line segment N.Q., we need to divide the length of N.Q. by the total length of the line segment NS. The length of NS is the sum of the lengths of N.Q., Q.R., and RS, which is 12 + 6 + 8 = 26. Therefore, the probability that the point is on line segment N.Q. is:
P(point is on N.Q.) = length of N.Q. / length of NS = 12 / 26 = 6 / 13
16)
To find the probability that the point is not on line segment Q.R., we need to subtract the length of Q.R. from the length of NS and divide by the length of NS. The length of Q.R. is 6, so the length of NS without Q.R is 12 + 8 = 20. Therefore, the probability that the point is not on line segment Q.R. is:
P (point is not on Q.R.) = (length of NS without Q.R.) / length of NS = 20 / 26 = 10 / 13
17)
To find the probability that the point is on line segment N.Q. or RS, we can add the probabilities of the point being on N.Q. and the point being on RS. We already calculated that the probability of the point being on N.Q. is 6/13. To find the probability of the point being on RS, we can use the same method as in part (15). The length of RS is 8, so the probability that the point is on RS is:
P(point is on RS) = length of RS / length of NS = 8 / 26 = 4 / 13
Therefore, the probability that the point is on N.Q. or RS is:
P(point is on N.Q. or RS) = P (point is on N.Q.) + P(point is on RS) = 6/13 + 4/13
= 10/13
18)
The bus stops at the lot every 18 minutes and stays for 2 minutes, so the shuttle is at the lot for a total of 20 minutes out of every 18 * 60 = 1080 minutes. Therefore, the probability that the bus is at the lot when you arrive is:
P (bus is at the lot) = time the shuttle is at the lot / total time = 20 / 1080
= 1/54
Note that this assumes that you arrive at a random time within the 1080 minutes and that the bus is equally likely to be at the lot at any time during its 20-minute stay.
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Related Questions
Work out the circumstances of this circle. take π to be 3.142 and give your answer to 1 decimal place. Radius is 4cm
Answers
Answer:
Step-by-step explanation:
The formula for the circumference of a circle is:
C = 2πr
where C is the circumference, π is pi, and r is the radius.
Substituting the given value of π = 3.142 and r = 4 cm, we get:
C = 2 x 3.142 x 4
C = 25.136 cm
Therefore, the circumference of the circle is 25.1 cm (rounded to 1 decimal place).
Help me on this one please.
Number 6 only.
Answers
Answer:
x=1.5
Step-by-step explanation:
Find the median of these numbers: 2.9, 9.1, 5.2, 2.9, 8.7, 7.4
Answers
Answer: 6.3
Step-by-step explanation:
Answer:
4.45
Step-by-step explanation:
5.2 + 7.4 ÷ 2 = 8.9 ÷ 2 = 4.45
Correct me if im wrong! Thank you!UwU
Among all rectangles that have a perimeter of 172
, find the dimensions of the one whose area is largest. Write your answers as fractions reduced to lowest terms.
Answers
Answer: 43x43 units 1849 units^2
By applying SAS congruence rule, you want to establish that triangle PQR =~ triangle KLM. It is given that PQ = KL and RP = MK. What additional information is needed to establish the congruence?
Answers
Answer:
Step-by-step explanation:
To establish the congruence of two triangles using the SAS (Side-Angle-Side) congruence rule, we need to know that two corresponding sides and the included angle are congruent.
In the given information, PQ = KL and RP = MK, but we do not know the measure of any included angle between the corresponding sides. Therefore, we need to know at least one angle that is congruent in both triangles to apply the SAS congruence rule.
Without additional information about an included angle, we cannot establish the congruence of triangle PQR and triangle KLM using the SAS congruence rule.
9. The blueprint for a new house includes a triangular shaped room in the attic. The triangular room appears on the blueprint as shown.
If the blueprint was made using a scale factor of 12
centimeter = 1 meter, what is the actual perimeter of the triangular room?
A. 2.5M
B. 4.5M
C. 9M
D. 18M
Answers
By answering the presented question, we may conclude that As a result, equation the real circumference of the triangle space is around 30 metres.
What is equation?A math equation is a technique that links two assertions and denotes equivalence using the equals sign (=). In algebra, an equation is a mathematical statement that proves the equality of two mathematical expressions. For example, in the equation 3x + 5 = 14, the equal sign separates the numbers 3x + 5 and 14. A mathematical formula may be used to understand the link between the two phrases written on either side of a letter. The logo and the programme are usually interchangeable. As an example, 2x - 4 equals 2.
Because the blueprint is designed on a scale of 12 centimetres Equals 1 metre, each 1 centimetre on the blueprint represents 0.0833 metres (1/12 of a metre).
Assume the triangle chamber on the blueprint has a perimeter of 30 cm. We may apply the following calculation to determine the real perimeter in metres:
Blueprint perimeter x Scale factor x 0.0833 = Real perimeter
Real circumference = 30 x 12 x 0.0833
Actual circumference = 29.988 metres
As a result, the real circumference of the triangle space is around 30 metres.
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Evaluate the given expression and show the steps, please.
Answers
To find:-
[tex]\displaystyle \sum_{n=1}^{4} 2(3^{n - 1})[/tex]Answer:-
We need to evaluate,
[tex]\implies s_4=\displaystyle \sum_{n=1}^{4} 2(3^{n - 1})[/tex]
Substituting n = 1 , 2 , 3 and 4 in [tex] 2(3^{n - 1})[/tex] and then adding them , we have;
[tex]\implies s_4 = 2(3^{1-1}) + 2( 3^{2-1})+2(3^{3-1})+2(3^{4-1}) \\[/tex]
Take out 2 as common,
[tex]\implies s_4 = 2 [ 3^0 + 3^1 + 3^2 + 3^3]\\[/tex]
[tex]\implies s_4 = 2 [ 1 + 3 + 9 + 27 ] \\[/tex]
[tex]\implies s_4 = 2 ( 40) \\[/tex]
[tex]\implies \underline{\underline{ s_4 = 80}} \\[/tex]
Hence the required answer is 80 .
and we are done!
A ladder leans against the wall of a
building. The ladder measures
71 inches and forms an angle of 64 with the ground. How far from
the ground, in inches, is the top of the ladder? How far from the
wall, in inches, is the base of the ladder? Round to two decimal
places as needed.
Answers
Answer:
63.81 inches
Step-by-step explanation:
sin(64) = h/71
cos(64) = x/71
Solving for h and x, we get:
h = 71 sin(64) ≈ 63.85 inches
x = 71 cos(64) ≈ 32.13 inches
Therefore, the distance from the ground to the top of the ladder is approximately 63.85 inches, and the distance from the wall to the base of the ladder is approximately 32.13 inches.
Determine the product. Write your answer in scientific notation. (15.4 × 102) · (2.8 × 10–4) = ?
Answers
Answer:
Step-by-step explanation:
(15.4*102)*(2.8*10-4)
(1,570.8)*(28-4)
(1,570.8)*(24)
37,699.2
Simplify the rational expression (X^2-x-72)/(x^2-64)
Answers
Answer:
[tex] \frac{x - 9}{x - 8} [/tex]
Step-by-step explanation:
[tex] \frac{(x - 9)(x + 8)}{(x + 8)(x - 8)} [/tex]
[tex] \frac{x - 9}{x - 8} [/tex]
[tex]\cfrac{x^2-x-72}{x^2-64}\implies \cfrac{(x+8)(x-9)}{x^2-8^2}\implies \cfrac{(x-9)~~\begin{matrix} (x+8) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{~~\begin{matrix} (x+8) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~(x-8)}\implies \cfrac{x-9}{x-8}[/tex]
all the faces of the prism meet at right angles. the volume the prism is 490m cube. what is the surface area of the prism?
Answers
The required surface area of the prism is 378 square meters.
How to find the area of Prism?To find the surface area of the prism, we need to know the dimensions of the prism. Let's call the length, width, and height of the prism l, w, and h, respectively.
Since the prism has right angles between its faces, we know that it is a right rectangular prism.
The formula for the volume of a right rectangular prism is V = lwh, and we know that the volume of the prism is 490m^3. Therefore,
lwh = 490
We are not given any specific values for l, w, or h, so we need to use another piece of information to solve for one of these variables.
The surface area of a right rectangular prism is given by the formula
SA = 2lw + 2lh + 2wh
If we can find the value of one of these dimensions, we can use it to calculate the surface area of the prism
lwh = 490
Since we know that the prism has right angles between its faces, we can assume that its dimensions are integers. We can start by testing integer values for l and w, and see if we can find an integer value for h that satisfies the equation.
For example, if we let l = 7 and w = 10, we get
7 * 10 * h = 490
Simplifying, we get
70h = 490
Dividing both sides by 70, we get
h = 7
Therefore, the dimensions of the prism are l = 7, w = 10, and h = 7.
To find the surface area, we can substitute these values into the formula for SA:
SA = 2lw + 2lh + 2wh
= 2(7)(10) + 2(7)(7) + 2(10)(7)
= 140 + 98 + 140
= 378
Therefore, the surface area of the prism is 378 square meters.
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The area of the parallelogram is 60 square millimeters.
What is the parallelogram's base, b?
Answers
The base of the parallelogram is 60.
How to find?
To find the base of a parallelogram, we need to know its area and height. The area of a parallelogram is given by the formula:
A = b × h
where A is the area, b is the base, and h is the height.
In this case, we are given that the area of the parallelogram is 60 square millimeters. We do not know the height of the parallelogram, so we cannot solve for the base directly.
However, we do know that the area of a parallelogram is equal to the product of its base and height. So, if we can find the height of the parallelogram, we can then use the formula to solve for the base.
To find the height, we can use the formula:
h = A / b
where A is the area and b is the base.
Substituting the given values, we get:
h = 60 / b
Now, we still do not know the value of the base, but we can use this expression for the height to set up an equation that relates the base and height of the parallelogram.
We know that the opposite sides of a parallelogram are parallel and have the same length, so the height of the parallelogram is perpendicular to the base. Therefore, we can draw a perpendicular line from the height to the base, dividing the parallelogram into two congruent triangles.
Each triangle has an area of A/2, and its base and height are b and h, respectively. Therefore, we can set up the following equation:
A/2 = bh/2
Substituting the expression for the height, we get:
A/2 = b(60/b)/2
Simplifying, we get:
A/2 = 30
Multiplying both sides by 2, we get:
A = 60 = bh
Now we have an equation that relates the base and area of the parallelogram. Substituting the given value for the area, we get:
60 = b × h
Substituting the expression for the height, we get:
60 = b × (60 / b)
Simplifying, we get:
60 = 60
This equation is always true, which means that any value of b that satisfies the condition for a parallelogram (i.e., opposite sides are parallel and have the same length) will work. Therefore, we cannot determine the value of the base without additional information.
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Ben made a sundial in his backyard by placing a stick with height, 6 inch straight into the ground, and marking the hours in the grass.
Answers
Therefore , the solution of the given problem of trigonometry comes out to be the length of the shadow at a 60° angle from the light is 2 to 3 inches.
What is trigonometry?It is thought that the interaction of the triangle different fields led to the development of astrophysics. With the aid of precise mathematical techniques, many metric issues can be resolved or the consequences of about there calculation can be established. The analysis of six fundamental trigonometric formulas is known as angle of trigonometry..
Here,
The length of the stick's shadow can be calculated using trigonometry when the sun is at a 30° or 60° angle with the earth.
Assume that the silhouette measures "x" inches in length.
The shadow and stick form a right triangle when the sun forms a 30° angle with the ground. The stick is 6 inches tall, and it is angled 30 degrees away from the shade. Therefore, we can use the tangent function to determine the shadow's length:
=> tan(30°) = 6/x
=> x = 6/tan(30°)
=> 6/(1/√3)
=> 6√3
As a result, the shadow's length at a 30° angle from the light is 6 34 inches.
Consequently, we can use the tangent function once more to determine the length of shadow:
=> tan(60°) = 6/x
=> x = 6/tan(60°) = 6/√3 = 2√3
As a result, the length of the shadow at a 60° angle from the light is 2 to 3 inches.
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The complete question is " Ben made a sundial in his backyard by placing a stick with height 6 in. straight into the ground, and marking the hours in the grass. To test it, he checks the time each day when the sun makes an angle of 30° or 60° with the ground. Select all the possible lengths of the shadow when Ben checks the sundial.
A. 12 in.
B. 23√ in.
C. 8 in.
D. 63√ in.
E. 22√ in."
American women's heights are normally distributed with a mean of 63.6 inches and a standard deviaiton of 2.5 inches. What is the probaility of randomly selecting 150 women with a mean height greater than 64 inches?
0.9750
0.0250
0.5636
0.4364
2. Assume that the population of human body temperature has a mean of 98.6 as is commonly believed. Also assume that the population standard deviation is 0.62. If a sample size of n=106 is randomly selected find the probability of getting a mean temperature of 98.2 or lower.
0.00001
0.9999
0.2578
0.4800
Answers
Addressing issue hand, we state that As a result, the linear equation likelihood of obtaining a mean temperature of 98.2 or lower is 0.0030, or approximately 0.003. up to get together with.
What is a linear equation?In algebra, a linear equation refers to one with its form y=mx+b. B is the gradient, and m is the esta. The preceding clause is commonly referred to as a "linear function with two variables" so even though y and x are variables. Bivariate linear equations are linear equations with two variables. There are several linear equations: 2x - 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, x + y = 2, and 3x - y + z = 3. When an equation seems to have the structure y=mx+b, where m is the slope and b is the y-intercept, it is said to be linear. When a measurement seems to have the formula y=mx+b, both with m identifying its slope and b denoting the y-intercept, it is said to be linear.
z = (64 - 63.6) / (2.5 / sqrt(150)) = 1.7889
P(Z > 1.7889) = 1 - P(Z < 1.7889) = 1 - 0.9633 = 0.0367
As a result, the probability of selecting 150 women at random with a mean height greater than 64 inches is 0.0367, or approximately 0.037. As a result, the answer is (B) 0.0250.
(x - mu) / (sigma / sqrt(n)) = z
where x represents the sample mean, mu represents the population mean, sigma represents the population standard deviation, and n represents the sample size.
When we substitute the given values, we get:
z = (98.2 - 98.6) / (0.62 / sqrt(106)) = -2.7465
The probability of getting a z-score less than -2.7465 using a standard normal distribution table is 0.0030. As a result, the likelihood of obtaining a mean temperature of 98.2 or lower is 0.0030, or approximately 0.003. up to get together with.
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URGENT !
Wayne factored the following polynomial using the "Grouping" method. However, another student says they didn't get the same answer so there must be a mistake
somewhere.
State which step Wayne made his mistake (2 points) and what that STEP should have actually looked like (2 points).
Problem: 16x4 +24x³ +64x² +96x
Step 1: 4x (4x³ + 6x² + 16x + 24)
Step 2: 4x [2x² (2x+3)+8(2x+3)]
Step 3: 4x (2x² + 8) (2x + 3)
(PLEASE DO NOT SHOW HOW YOU WOULD SOLVE THIS. FIX WAYNE'S STEP! HE NEEDS HELP!)
Answers
Wayne's mistake is that he omitted the parentheses around the two factors of 2x² and 8.
What is parentheses?Parentheses, also known as round brackets, are punctuation marks that are used to contain related information within a sentence. They are most commonly used to set off additional information, such as a clarification or an example. Parentheses can also be used to indicate a digression from the main point of a sentence, or to indicate that something is not essential to the foundation of a statement. In addition, they can be used to indicate an interruption in a sentence, or to separate items in a list. Parentheses are also used to indicate a pause or an aside in dialogue.
The step should have been written as: 4x (2x² + (8)(2x+3)). This properly shows that 8 is being multiplied by the expression 2x+3, rather than being added to it.
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g(x)=4x-(3x+7x/3) Find the slope and y=intercept. Express the intercept as an ordered pair. Simplify your answer.
Answers
Answer:
Slope: -(4/3)
Y-intercept: 0
can some please help me
do the odds
please show work
Answers
By conversion formulas, the measures of angles in degrees are, respectively:
θ' = 145°θ' = 255°θ' = 160°θ' = 275°θ' = 50°θ' = 265°θ' = 40°θ' = 47°θ' = 1°θ' = 68°θ' = 46°θ' = 462°θ' = - 327°θ' = 114°θ' = 699°θ' = 17°θ' = 655°θ' = 764°θ' = - 142°θ' = 582°θ' = 895°θ' = 825°θ' = - 233°θ' = 50°θ' = 299°θ' = 807°θ' = 534°θ' = 188°θ' = 910°θ' = - 428°How to convert angles in radians to degrees
In this problem we find thirty cases of angles in radians that must be converted in degrees, this can be done by following conversion formula:
θ' = (180 / π) × θ
Where:
θ - Angle, in radians.θ' - Angle, in degrees.Now we proceed to determine the angles, measured in degrees:
Case 1:
θ' = (29π / 36) × (180 / π)
θ' = 145°
Case 2:
θ' = (17π / 12) × (180 / π)
θ' = 255°
Case 3:
θ' = (8π / 9) × (180 / π)
θ' = 160°
Case 4:
θ' = (55π / 36) × (180 / π)
θ' = 275°
Case 5:
θ' = (5π / 18) × (180 / π)
θ' = 50°
Case 6:
θ' = (53π / 36) × (180 / π)
θ' = 265°
Case 7:
θ' = (2π / 9) × (180 / π)
θ' = 40°
Case 8:
θ' = (47π / 180) × (180 / π)
θ' = 47°
Case 9:
θ' = (π / 180) × (180 / π)
θ' = 1°
Case 10:
θ' = (17π / 45) × (180 / π)
θ' = 68°
Case 11:
θ' = (23π / 90) × (180 / π)
θ' = 46°
Case 12:
θ' = (77π / 30) × (180 / π)
θ' = 462°
Case 13:
θ' = (- 109π / 60) × (180 / π)
θ' = - 327°
Case 14:
θ' = (19π / 30) × (180 / π)
θ' = 114°
Case 15:
θ' = (- 233π / 60) × (180 / π)
θ' = 699°
Case 16:
θ' = (17π / 180) × (180 / π)
θ' = 17°
Case 17:
θ' = (131π / 36) × (180 / π)
θ' = 655°
Case 18:
θ' = (191π / 45) × (180 / π)
θ' = 764°
Case 19:
θ' = (- 71π / 90) × (180 / π)
θ' = - 142°
Case 20:
θ' = (97π / 30) × (180 / π)
θ' = 582°
Case 21:
θ' = (- 179π / 36) × (180 / π)
θ' = 895°
Case 22:
θ' = (55π / 12) × (180 / π)
θ' = 825°
Case 23:
θ' = (- 233π / 180) × (180 / π)
θ' = - 233°
Case 24:
θ' = (- 5π / 18) × (180 / π)
θ' = 50°
Case 25:
θ' = (299π / 180) × (180 / π)
θ' = 299°
Case 26:
θ' = (- 269π / 60) × (180 / π)
θ' = 807°
Case 27:
θ' = (- 89π / 30) × (180 / π)
θ' = 534°
Case 28:
θ' = (47π / 45) × (180 / π)
θ' = 188°
Case 29:
θ' = (91π / 18) × (180 / π)
θ' = 910°
Case 30:
θ' = (- 107π / 45) × (180 / π)
θ' = - 428°
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Given parallelogram EFGH, where EF = 2x+15, HE = 6x+4 and the perimeter is 69, which is the value of GH?
Answers
Answer: The perimeter of a parallelogram is the sum of the lengths of all four sides. In this case, the perimeter is given as 69, so we can write:
EF + FG + GH + HE = 69
We know that opposite sides of a parallelogram are equal in length, so EF = GH and FG = HE. Substituting these into the equation above, we get:
2(EF) + 2(FG) = 69
2(GH) + 2(HE) = 69
Simplifying each equation:
2(2x+15) + 2(6x+4) = 69
4x + 30 + 12x + 8 = 69
16x + 38 = 69
16x = 31
x = 31/16
Substituting x into the equation for GH, we get:
GH = 2x+15
GH = 2(31/16) + 15
GH = 31/8 + 120/8
GH = 151/8
Therefore, the value of GH is 18.875 units.
Step-by-step explanation:
Which estimation technique will yield a solution that is farthest from the actual product of (-14.89)(1.35)?
front-end estimation
rounding to the nearest tenth
rounding to the nearest whole number
compatible numbers
It’s not C
Answers
Which polynomial is prime? x2 – 36 x2 + 6 x2 – 7x + 12 x2 – x – 20
Answers
The prime polynomial, considering it's concept, is given as follows:
x² + 6.
What are prime polynomials?A polynomial is called a prime polynomial if cannot be factored into a product of two or more polynomials of lower degree with integer coefficients.
The most common way to factor a polynomial into polynomials of lower degree is according to the Factor Theorem, when the roots of polynomial are obtained, and then the linear factors generated from these roots are multiplied.
For this problem, the polynomial x² + 6 has no real roots, as x² = -6 means that the roots are complex, hence it is the prime polynomial in the context of the problem.
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Answer: B.
Step-by-step explanation:
trust me on that one lol.:p
i need help with number 7
Answers
Answer:20$ per foot
Step-by-step explanation: just multiply the first cost(400) by the first foot amount(20) 400/20=20
what does 1\4 divided by 1 3/5 equal and how do i work it out
Answers
Answer:
slimer 16 goofy butt fart gamer setup
Step-by-step explanation:
Classifying parallelagram
Answers
Answer:
(3,-6)
Step-by-step explanation:
Coordinate for the point R is (3, -6)
What is a quadrilateral?A polygon with four sides and four vertices is called a quadrilateral. Quadrilateral literally means "four sides" because "quad" means four and "lateral" implies sides. Quadrilaterals come in a variety of sizes, forms, and angles, but they all have four sides in common.
If all of the matching sides and angles of two quadrilaterals are equal in size, they are said to be congruent.
Given that the quadrilateral PQRS congruent to the quadrilateral JKLM.
Find out the all sides and angles of given quadrilateral JKLM and quadrilateral PQRS,
according to the graph the points are:
for quadrilateral JKLM,
J (-6, 2)
K (-3, 5)
L (-5, 8)
M (-8, 4)
for quadrilateral PQRS,
P (9, -7)
Q (6, -4)
R ( _, _ )
S (7, -9)
By the formula distance between any two points is:
[tex]d=\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2}[/tex]
where, [tex]x_{1}, x_{2} , y_{1}, y_{2}[/tex] are the points of two sides of line.
using that formula we have to find out the points of R is (3, -6)
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A large corporation with monopolistic control in the marketplace has its average daily costs, in dollars, given by
C = 500/x + 200x + x².
The daily demand for x units of its product is given by p= 450,000-100x dollars.
Find the quantity that gives maximum profit.
units
Find the maximum profit.
What selling price should the corporation set for its product?
Answers
Answer:
The profit function can be expressed as:
Profit = Revenue - Cost
Revenue = Price x Quantity
Price = p = 450,000 - 100x
Quantity = x
Cost = C = 500/x + 200x + x²
Substituting these values, we get:
Profit = (450,000 - 100x) x - (500/x + 200x + x²)
Simplifying this expression, we get:
Profit = -x² + 450,000x - 500 - 200x² - x³
To find the quantity that gives maximum profit, we need to differentiate the profit function with respect to x and set it equal to zero:
d(Profit)/dx = -3x² + 450,000 - 400x - 500/x²
Setting this derivative equal to zero and solving for x, we get:
3x³ - 450,000x² + 400x³ + 500 = 0
This equation can be solved numerically to obtain:
x ≈ 98.9
To confirm that this is a maximum, we can check the second derivative of the profit function:
d²(Profit)/dx² = -6x + 800/x³
At x = 98.9, this evaluates to:
d²(Profit)/dx² ≈ -2.71
Since the second derivative is negative, the profit function has a maximum at x ≈ 98.9.
The maximum profit can be found by substituting this value of x into the profit function:
Profit ≈ $20,007,710
To find the selling price that maximizes profit, we can use the demand function:
p = 450,000 - 100x
At x = 98.9, this evaluates to:
p ≈ $35,110
Therefore, the corporation should sell its product for $35,110 to maximize profit.
On a coordinate plane, a line with positive slope goes through points A and B. Point A is at (0, negative 2) and point B is at (3, 0). Use the graph of the line shown to determine its slope. The slope of line AB is .
Answers
According to the given information, the slope of line AB is [tex]\frac{2}{3}[/tex].
What is the slope?
The slope of a line is a measure of how steep the line is. It tells us how much the y-coordinate of the line changes for each unit of change in the x-coordinate.
To visualize a slope, imagine a line on a coordinate plane. If the line is steep, it means that for each unit of increase in the x-coordinate, the y-coordinate changes by a larger amount. Conversely, if the line is less steep, it means that for each unit of increase in the x-coordinate, the y-coordinate changes by a smaller amount.
To find the slope of a line that passes through two given points, we use the slope formula:
[tex]slope = \frac{(change in y) }{(change in x)}[/tex]
In this case, we have points A(0, -2) and B(3, 0).
So the change in y is 0 - (-2) = 2, and the change in x is 3 - 0 = 3.
Therefore, the slope of line AB is:
[tex]slope = \frac{(change in y) }{(change in x)} = \frac{2}{3}[/tex]
Since the slope is positive, we know that the line slants upwards as we move from left to right on the coordinate plane.
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The following system of linear equations has how many solutions?
3y = x + 6
6y - 2x = 12
Answers
The system of linear equations 3y = x + 6 and 6y - 2x = 12 has infinitely many solutions.
What is the number of solutions of the system of equation?Given the system of euqation in the question;
3y = x + 66y - 2x = 12We can solve this system of linear equations using the substitution method:
From the first equation, we can rewrite x in terms of y as:
x = 3y - 6
Substituting this expression for x in the second equation, we get:
6y - 2(3y - 6) = 12
Simplifying this equation, we get:
6y - 6y + 12 = 12
The equation simplifies to 12 = 12.
This means that the two equations are equivalent and represent the same line in the xy-plane.
The system has infinitely many solutions, and all points on the line satisfy both equations.
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The volume of a liquid is 750 mL at a pressure of 1 atm. If the volume increases to 500 mL, what will be the new pressure? Use Boyle’s Law to find your answer.
a. 2.3 atmc. 1.5 atm
b. 5.6 atmd. 4 atm
Answers
Using Boyle's law, which is mathematically expressed as P1V1 = P2V2, the new pressure is calculated as: c. 1.5 atm
What is Boyle’s Law?Boyle's law states that the product of the pressure and volume of a gas is constant, assuming that the temperature remains constant. Mathematically, it can be expressed as:
P1V1 = P2V2
where P1 and V1 are the initial pressure and volume, and P2 and V2 are the final pressure and volume.
Using the given values, we can set up the equation as follows:
1 atm × 750 mL = P2 × 500 mL
Simplifying this equation, we get:
750 atm·mL = 500 P2
Dividing both sides by 500 mL, we get:
P2 = 750 atm·mL / 500 mL
P2 = 1.5 atm
Therefore, the new pressure is 1.5 atm.
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Which equation represents the relationship between x, the time in minutes, and y, the shots made?
Answers
The relationship that represent between x, the time in minutes and y, the shot made is y = 4x .
How to find proportional relationships?Proportional relationships are relationships between two variables where their ratios are equivalent. A proportional relationship is one in which two quantities vary directly with each other.
Proportional relationships can be represented as follows;
y = kx
where
k = constant of proportionalityHence, the equation that can be used to represent the relationship between x, the time in minutes and y, the shot made is as follows;
Therefore,
y = kx
where
x = time in minutesy = shot madeTherefore,
12 = 3k
k = 12 / 3
k = 4
Therefore,
y = 4x
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( 3x - 2y = 4
|-6x + 4y = 7
what is the ordered pare
Answers
Step-by-step explanation:
To find the ordered pair, you can use the elimination method to solve for one variable in terms of the other, and then substitute into one of the equations to solve for the other variable. Here's how:
First, multiply the first equation by 2 to get:
6x - 4y = 8
Then, add the second equation to this one to eliminate y:
6x - 4y + (-6x + 4y) = 8 + 7
Simplifying and solving for x, we get:
0x + 0y = 15
0 = 15
This is a contradiction, which means the system of equations has no solution. In other words, there is no ordered pair of (x,y) that satisfies both equations simultaneously.
Compute the voltage drop if the source voltage is 240V and the load voltage is 237V.
Answers
The voltage drop is the difference between the source voltage and the load voltage, which is 3V.
What is voltage drop?Voltage drop is the decrease of electric potential along the path of a current flowing in a circuit. Voltage drops in the internal resistance of the source, across conductors, across contacts, and across connectors are undesirable because some of the energy supplied is dissipated.
Voltage drop of the circuit conductors can be determined by multiplying the current of the circuit by the total resistance of the circuit conductors: VD = I x R.
The voltage drop can be calculated by subtracting the load voltage from the source voltage. In this case, the voltage drop is:
240V - 237V = 3V
Thus, the voltage drop is 3V.
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