Answer:
However, when you look at the restrictions for the function, you see that the square root portion of the function is only valid when x > 5. If x < or = 5, the other part of the function is valid, and because it has no square root or denominator, all real numbers are valid as the domain for this piecewise function....!!!
solve x using the tangent lines
The value of x is the measure of the angle between the tangent lines with arc 46° and is equal to 134°
How to evaluate for the value of x given two tangent.Given the tangents to the circle intersecting at a point forming the angle x, the measure of the angle x between the tangents is 180 degrees minus the measure of the arc between the two points of tangency.
hence;
x = 180° - arc length
x = 180° - 46°
x = 134°
Therefore, the value of x is the measure of the angle between the tangent lines with arc 46° and is equal to 134°.
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What is the value of the expression −215 − 53 − (−6)?
168
156
−274
−262
8 and one-sixth divided by 1 and StartFraction 7 over 8 EndFraction
Answer:
the answer is 4
Step-by-step explanation:
It costs $150 to rent a party room at Pizza-n-Games, plus $6 per person for pizza and $5 per person for game tickets. The expression showed gives the total cost for n people.
150+6n+5n
Evaluate the expression to find the cost for a party of 15 people
Answer:
$315
Step-by-step explanation:
1. Find the factored form of f(x) given it has x-intercepts (-3,0) and (4,0) and f(1)= -6. 2. Find the equation for f(x) given that it has roots of 2 and -3 and f(0)=12. Please someone help
Answer:
1) f(x) = 0.5*(x + 3)*(x - 4)
2) f(x) = -2*x^2 - 2*x + 12
Step-by-step explanation:
Wen we have a quadratic function like:
f(x) = a*x^2 + b*x + c*x
And it has roots at x1 and x2, we can write the function in the factored form as:
f(x) = a*(x - x1)*(x - x2)
then:
1) we have x-intercepts at: (-3, 0) and (4, 0) (then the roots of this function are x = -3 and x =4) and we know that f(1) = -6
we have:
x1 = -3
x2 = 4
then we can write f(x) as:
f(x) = a*(x - (-3))*(x - 4)
f(x) = a*(x + 3)*(x - 4)
Where a is a real number.
and now we can use the fact that f(1) = -6
then:
f(1) = a*(1 + 3)*(1 - 4) = -6
a*4*(-3) = -6
a*-12 = -6
a = -6/-12 = 1/2 = 0.5
Then the function is:
f(x) = 0.5*(x + 3)*(x - 4)
2) Now we have roots x = 2 and x = .3
Then:
x1 = 2
x2 = -3
Then this function is something like:
f(x) = a*(x - 2)*(x - (-3))
f(x) = a*(x - 2)*(x + 3)
Now we know that f(0) = 12.
then:
f(0) = a*(0 - 2)*(0 + 3) = 12
a*(-2)*3 = 12
a*(-6) = 12
a = 12/-6 = -2
f(x) = -2*(x - 2)*(x + 3)
And we do not want this one written in factored form, so we can just distribute the multiplications to et:
f(x) = -2*(x - 2)*(x + 3) = (-2*x + 4)*(x + 3) = -2*x^2 + 4*x - 6*x + 12
f(x) = -2*x^2 - 2*x + 12
In a two-way ANOVA with interaction, a significant interaction term indicates that A) The response variable is interactive. B) A blocking factor is present. C) Both factors are unrelated. D) Both factors have a combined effect on the response variable.
The correct option is D) Both factors have a combined effect on the response variable.
In a two-way ANOVA with interaction, the interaction term refers to the combined effect of two independent variables (factors) on the response variable. It assesses whether the relationship between one independent variable and the response variable changes based on the different levels of the other independent variable.
If the interaction term is found to be significant, it indicates that the effect of one independent variable on the response variable is not consistent across different levels of the other independent variable. In other words, the impact of one factor on the response variable depends on the specific level or condition of the other factor.
This suggests that the factors are not independent of each other and that they interact to influence the response variable.
Therefore, option D is the correct answer. A significant interaction term in a two-way ANOVA with interaction indicates that both factors have a combined effect on the response variable, with the relationship between one factor and the response variable being influenced by the levels of the other factor.
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It seems that every carton of eggs at the supermarket contains at
least one broken egg. If, in fact, it has been determined that
3 percent of the eggs supplied to a supermarket are cracked,
what is the probability that if you buy two dozen eggs none of
your eggs will be cracked?
The probability that if you buy two dozen eggs, none of your eggs will be cracked is 94.09% if the 3 percent of the eggs supplied to a supermarket are cracked.
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
We have:
3 percent of the eggs supplied to a supermarket are cracked.
The probability that no eggs are cracked = 1 - 0.03 = 0.97
The probability that if you buy two dozen eggs, none of your eggs will be cracked:
= 0.97×0.97
= 0.9409
= 94.09%
Thus, the probability that if you buy two dozen eggs, none of your eggs will be cracked is 94.09% if the 3 percent of the eggs supplied to a supermarket are cracked.
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The height h and the base area B of a cylinder are given. Find the volume of the cylinder. Write your answer in terms of it. h=2 units B=25pi symbol square units
here's the solution,
\( \boxed{\small{volume = area \: \: of \: base \: \: \times height}}\)
so,
=》
\(v = 25\pi \times 2\)
=》
\(v = 50\pi\)
if you solve for π then the value will be :
157but in terms of π the value will be :
50 πThe volume of the cylinder is 157 unit³.
What is volume?The amount of space occupied by a three-dimensional figure as measured in cubic units.
Given: B= 25π, h= 2 units
Base area= 25π
πr²= 25π
r²=25
r=±5 units
Now, Volume of cylinder= πr²h
= 3.14* 5* 5* 2
= 157 unit³
Hence, the volume of cylinder is 157 unit³.
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There are red, yellow, blue and green counters in a bag. The probability of picking red is 0.25. The probability of picking yellow is 0.15. The probability of picking blue is 0.2. Work out the probability of picking green? *
Answer:
The probability of picking a green is 0.4
Step-by-step explanation:
Mathematically, when we talk of the highest possibility an event can have, we have the answer as 1
Hence, when we add up all the probabilities, it is expected that we arrive at a value equal to 1
Thus, the probability of selecting each individual colors add up to 1
since we have the probability of three colors, the probability of the fourth will be the sum of the others subtracted from 1
we have the probability of picking a green as;
1 - 0.25 - 0.15 - 0.2 = 0.4
Which algebraic expression represents the phrase "two times the quantity of a number minus 12"? 2y - 12 2(y -12) 2ly +12) 2y + 12 Save and Exit Next Mark this and return
Answer:
The expression is 2 y - 1 2
Step-by-step explanation:
two times the quantity of a number minus 12
Let the number of y.
Two times a number is 2 y
Now minus 12
So, the expression is
2 y - 12
What is the name of the green segment in the hyperbola below
The Length of the conjugate axis is equal to 2b. The transverse axis is an essential feature of a hyperbola, as it determines the overall shape of the hyperbola.
In a hyperbola, the name of the green segment is called the transverse axis. The transverse axis is the longest distance between any two points on the hyperbola, and it passes through the center of the hyperbola. It divides the hyperbola into two separate parts called branches.
The transverse axis of a hyperbola lies along the major axis, which is perpendicular to the minor axis. Therefore, it is also sometimes called the major axis.
The other axis of a hyperbola is called the conjugate axis or minor axis. It is perpendicular to the transverse axis and passes through the center of the hyperbola. The length of the conjugate axis is usually shorter than the transverse axis.In the hyperbola above, the green segment is the transverse axis, and it is represented by the letters "2a". Therefore, the length of the transverse axis is equal to 2a.
The blue segment is the conjugate axis, and it is represented by the letters "2b".
Therefore, the length of the conjugate axis is equal to 2b.The transverse axis is an essential feature of a hyperbola, as it determines the overall shape of the hyperbola. In particular, the distance between the two branches of the hyperbola is determined by the length of the transverse axis.
If the transverse axis is longer, then the branches of the hyperbola will be further apart, and the hyperbola will look more stretched out. Conversely, if the transverse axis is shorter, then the branches of the hyperbola will be closer together, and the hyperbola will look more compressed.
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2² + {[1 x (5 - 2)] x 3
The value of 2² + {[1 x (5 - 2)] x 3 using PEDMAS is 13.
To simplify the expression 2² + {[1 x (5 - 2)] x 3}, we will use PEDMAS
First, within the innermost parentheses, we have 5 - 2, which equals 3.
So the expression becomes: 2² + {[1 x 3] x 3}.
Next, we simplify the multiplication within the curly brackets: 1 x 3 equals 3.
= 2² + {3 x 3}.
Now, we evaluate the exponent 2², which means 2 raised to the power of 2. It equals 4.
= 4 + {3 x 3}.
Finally, we multiply within the curly brackets: 3 x 3 equals 9.
= 4 + 9.
Adding 4 and 9, we get the final result: 13.
Therefore, 2² + {[1 x (5 - 2)] x 3} equals 13.
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a company manufactures 2 models of mp3 players. let x represent the number (in millions) of the first model made, and let y represent the number (in millions) of the second model made.
The company's revenue can be modeled by the equation
t(x,y) = 110x + 180y + 3x^2 - 4y^2 - xy
Find the marginal revenue equations
rx(x,y)=
ry(x,y)=
We can acheive maximum revenue when both partial derivatives are equal to zero. Set Rx = 0 and Ry = 0 and solve as a system of equations to the find the production levels that will maximize revenue.
Revenue will be maximized when:
x=
y=
The equations of values of x and y =0 that will maximize the revenue.
The marginal revenue equations, to calculate the partial derivatives of the revenue function with respect to each variable, x and y.
Given the revenue function:
t(x, y) = 110x + 180y + 3x² - 4y² - xy
The marginal revenue with respect to x, rx(x, y), the partial derivative of t(x, y) with respect to x, while treating y as a constant:
rx(x, y) = ∂t/∂x = 110 + 6x - y
Similarly, the marginal revenue with respect to y, ry(x, y),the partial derivative of t(x, y) with respect to y, while treating x as a constant:
ry(x, y) = ∂t/∂y = 180 - 8y - x
The production levels that will maximize revenue, both marginal revenue equations equal to zero and solve as a system of equations.
Setting rx(x, y) = 0:
110 + 6x - y = 0
Setting ry(x, y) = 0:
180 - 8y - x = 0
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Please help!!
A school is constructing a rectangular play area against an exterior wall of the school
building. It uses 120 feet of fencing material to enclose three sides of the play area.
Answer:
Step-by-step explanation:
Question says that it uses 120 feet of fencing material to enclose three sides of the play area. This means there are 3 sides. Putting this into equation, we have something like this.
120 = L + 2W
Where
LW = area.
Again, in order to maximize the area with the given fencing, from the equation written above, then Width, w must be = 30 feet and length, l must be = 60
On substituting, we have
A = LW = (120 - 2W) W
From the first equation, making L the subject of the formula, we have this
L = 120 - 2W, which then we substituted above.
On simplification, we have
L = 120W -2W²
Differentiating, we have
A' = 120 - 4W = 0
Remember that W = 30
So therefore, L = 120 - 2(30) = 60 feet
The required length of the rectangular garden is 60 feet
Area of rectangular shapeAccording to the question, the school uses 120 feet of fencing material to enclose three sides of the play area. This means there are 3 sides.
Substitute into the perimeter of the rectangle will give:
120 = L + 2W
Area = LW
In order to maximize the area with the given fencing, from the equation written above, then w = 30 feet and l = 60
On substituting, we have;
A = LW = (120 - 2W) W
L = 120 - 2W,
On simplification, we have
L = 120W -2W²
Differentiating, we have
A' = 120 - 4W = 0
Remember that W = 30
So therefore, L = 120 - 2(30) = 60 feet
Hence the required length of the rectangular garden is 60 feet
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How to make 2.5 a fraction
Paul received a coupon for 43 percent off one item at a clothing store let b be the original price of the item use the expression b-43 for the new price of the item write an equivalent expression by combining like terms
The equivalent expression for the new price of the item is 0.57b. With b be the original price of the item.
The original price of the item is represented by "b". Paul received a coupon for "43 percent" off one item at a clothing store. This means that the new price of the item will be the "original price" minus the discount. The discount is calculated by multiplying the original price by the percentage discount.
So, the discount is:
43 percent of b = 0.43 * b
The new price of the item is the original price minus the discount:
b - 0.43 * b = b - 0.43b
This expression can be simplified by combining the like terms. The like terms in this expression are b and -0.43b.
To combine like terms, we add the coefficients of the like terms:
1b + (-0.43)b = 0.57b
So, the equivalent expression for the new price of the item is:
0.57b
This means that the new price of the item is 57% of the original price. Therefore, the equivalent expression for the new price of the item is 0.57b.
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Jack had to purchase a book for college. The book cost $280 at the campus store. Jack found it online for 15% off. How much can he save if he purchases it online?
Answer:
I think its 238.00
Step-by-step explanation:
What is the least common denominator of the rational expressions below?
2/7 - 7/4x^2+12x
O A. 4x^2(x + 3)
O B. x^2(x + 3)
O c. x^2(x + 3)
O D. 4x^2(x+3)
Answer:
A. 4x^2(c+3)
Step-by-step explanation:
If a pet grooming salon hires an additional groomer, that worker can groom 4 additional pets per day. the average grooming fee is $25. the most the salon would be willing to pay that groomer is
The most the salon would be willing to pay that groomer is $25×4 = $100.
What is unitary method?The unitary method is a technique that determines the worth of a single unit from value of multiple units, as well as the quality of multiple units from value of a single unit.
Some key features regarding the unitary method are-
It's a method which we use for the majority of math calculations. This method will come in handy when answering questions about ratio & proportion, algebra, geometry, and other subjects.We can determine the missing value using the unitary method. For example, if one carton of juice pays $5, how much would five such packets cost? We can then easily determine the price of 5 packets, which is $25.To know more about the unitary method, here
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turn 12,14 into a decimal pls thanks ASAP
Answer:
0.857142857
Step-by-step explanation:
Answer: 0.85714285714286
Step-by-step explanation:
if lisa's score was 86 and that score was the 23rd score from the top in a class of 280 scores, what is lisa's percentile rank?
Lisa's percentile rank is approximately 7.857%.
To calculate Lisa's percentile rank, you can use the formula:
Percentile Rank = (Number of scores less than Lisa's score / Total number of scores) * 100
In this case, Lisa's score is 86, and it is the 23rd score from the top in a class of 280 scores. Therefore, the number of scores less than Lisa's score is 23 - 1 = 22 (excluding Lisa's score itself).
Substituting the values into the formula:
Percentile Rank = (22 / 280) * 100 ≈ 7.857%
Lisa's percentile rank is approximately 7.857%.
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WILL GIVE BRAINLIEST
Rewrite (see picture) in standard form. Find the center and radius of the circle. Show all of your work for full credit.
Answer:
\((x - 2)^{2} + (y + \frac{5}{2} )^{2} = \frac{37}{4}\)
Step-by-step explanation:
The standard form of the equation: (x-2)²+ (y + 5/2)² = 37/4 , center: (2, -5/2) and radius: (√37) / 4.
What is a circle?A circle is a closed, two-dimensional object where every point in the plane is equally spaced from a central point. The line of reflection symmetry is formed by all lines that traverse the circle.
We have given the equation,
2x²+2y²-8x + 10y+2 = 0
Divide by 2,
x²+y²-4x + 5y+1 = 0
Arranging the terms to make a complete square of variable x and y.
x²+y²-4x + (2/2)5y+1+ 4 + 25/4 = 4 + 25/4
(x-2)²+ (y + 5/2)² = 37/4
This is the form of a circle.
Use this form to determine the center and radius of the circle.
(x−h)²+(y−k)²=r²
Match the values in this circle to those of the standard form.
The variable r represents the radius of the circle, h represents the x-offset from the origin, and k represents the y-offset from the origin.
r=(√37) / 4, h=2, k= -5/2
The center of the circle is found at (h,k).
Center: (2, -5/2)
Therefore, center: (2, -5/2), radius: (√37) / 4
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How do you write 1841.66666667 as money? Where does the 7 go?
Answer:
We write it as $1841.67 (Rounded)
Step-by-step explanation:
The 7 will round up to the hundredths (0.01) place.
Hoped this helped.
If it takes 10 minutes for 15 machines to make 5 widgets, how many minutes would it take 5 machines to make 15 widgets
30 minutes would it take 5 machines to make 15 widgets.
Work and Time Problems:
It is based on the concept of time taken by an individual or a group of individuals to complete a piece of work and the efficiency of the work done by each of them.
Given:
It takes 10 minutes for 15 machines to make 5 widgets.
We need to find how many minutes would it take 5 machines to make 15 widgets.
So, one machine can make,
=> 5 / 15 = 1/3
In 1 minute,
=> 1/30
So, for 15 widgets, it take
=> 15 x 1/30
=> 1/2 or 1/2 hours
That is equal to 30 minutes.
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a researcher applying watts’s mathematical models as described in the passage to research on the transmission of an airborne contagious disease can most reasonably assume that:
A small number of individuals could cause a widespread distribution of the disease.
A researcher applying Watts's mathematical models to study the transmission of an airborne contagious disease can most reasonably assume that:
1. The disease transmission follows a network-based spread pattern.
In Watts's mathematical models, the focus is on network structures and the dynamics of spreading phenomena. Therefore, the researcher can reasonably assume that the transmission of the airborne contagious disease is influenced by the connections and interactions within a network. This implies that individuals are not randomly interacting but are part of a network where the disease can propagate along the links.
The spread of the disease is influenced by the characteristics of the network.
Watts's models highlight the importance of the network structure in determining the spread of contagion. Therefore, the researcher can reasonably assume that factors such as network connectivity, node centrality, clustering, and other network properties significantly influence the transmission dynamics of the airborne contagious disease. These characteristics can affect the speed, reach, and severity of the disease's spread within the network.
By considering these assumptions, the researcher can utilize Watts's mathematical models to gain insights into how an airborne contagious disease might spread through a network and inform strategies for disease control and prevention.
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If EF = 2x + 7, and GH = 5x -1, what is EF?
Answer:
65
Step-by-step explanation:
EF is 1/2 the length of GH, so 2EF = GH
2(2x + 7) = 5x - 1
4x + 28 = 5x -1
29 = x
EF is 2x + 7, so 2(29) + 7 = 65
Apply the 45°-45°-90° Triangle Theorem to find the length of a leg of a right triangle if the length of the hypotenuse is 8/2
inches.
Answer:
d
Step-by-step explanation:
d
Evaluate the function?
Answer:
187
Step-by-step explanation:
fill in (-9) where it says x, so 2(-9)^2 -5(-9) -20, which gives 187
What type of quadrilateral is it? Explain or show you reasoning
The quadrilateral we are dealing with here is a square.
Why is this so ?To show that a quadrilateral is a square, we need to show that all four sides are equal in length and that the angles are all right angles.
So let's calculate the distances between the given points like this
AB = √((3-0) ² + (0 -4)²)
= √(9 + 16) = √(25)
= 5
BC = √((7-3)² + (3-0)²)
= √(16 + 9)
= √(25) = 5
CD = √((4-7) ² + (7-3) ²)
= √(9 + 16)
= √(25)
= 5
DA = √ ((0-4) ² + ( 4- 7) ²)
= √(16 + 9)
= √(25)
= 5
This shows that all the sides are equal in lenght. Now, lets solve for the slopes.
mAB = (0-4)/(3-0)
= -4/3
m BC
= (3- 7)/(0-3)
= 4/3
mCD = ( 7-4)/(3- 0)
= 3/3 = 1
mDA = (0-4)/(4-0)
= -4/4 = -1
Since the slopes of opposites sides are reciprocals thus, the quadrilateral ABCD is a Square.
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Full Question:
Full Question:
Although part of your question is missing, you might be referring to this full question:
See attached image.
The Excel function =40*RAND() would generate random numbers with standard deviation approximately equal to____.
The Excel function =40*RAND() generates random numbers between 0 and 40.
Since the RAND() function in Excel produces random numbers uniformly distributed between 0 and 1, multiplying it by 40 scales the range to 0 to 40.
The standard deviation of a uniform distribution with range a to b is given by (b - a) / sqrt(12). In this case, a = 0 and b = 40.which simplifies to approximately 11.55.
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