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A doll production of 20 units a day must be done to minimize production costs.The minimum production cost is 420.How to analyze and interpret daily production cost function
Herein we find a quadratic function that relates doll production and production cost, of which we must determine what quantity minimizes production costs. This can be done by transforming the equation into vertex form. First, write the equation in standard form:
PC = 0.2 · t² - 8 · t + 500
Second, use algebra properties until vertex form is obtained:
PC = 0.2 · (t² - 40 · t + 2500)
PC = 0.2 · (t² - 40 · t + 400) + 0.2 · 2100
PC - 420 = 0.2 · (t - 20)²
Third, determine the critical point:
(t, PC) = (20, 420)
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Please help me with 7 and 8!!!
The multiplication functions are given as follows:
7) (f x g)(x) = 2x³ - 3x² - 21x - 18.
8) (f x g)(x) = (4)^x(2x + 8) - 10^x + 8.
How to multiply the functions?The functions are multiplied first applying the associative property, multiplying all the terms among themselves, and then combining the like terms.
For item 7, the multiplication of the terms is given as follows:
(2x + 3)(x² - 3x - 6) = 2x³ - 6x² - 12x + 3x² - 9x - 18
Combining the like terms, the product is given as follows:
(2x + 3)(x² - 3x - 6) = 2x³ - 3x² - 21x - 18.
For item 8, the multiplication of the terms is given as follows:
(4^x - 5)(2x + 8) = 2x(4)^x + 8(4)^x - 10x + 8
Combining the like terms, the product is given as follows:
(4^x - 5)(2x + 8) = (4)^x(2x + 8) - 10^x + 8.
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The bisector of one of the angles of a rectangle also bisects the side of a rectangle. Find the perimeter of the rectangle if you know that the shorter side of the rectangle is equal to 10 cm.
If the bisector of one of the angles of a rectangle also bisects the side of a rectangle. The perimeter of the rectangle if you know that the shorter side of the rectangle is equal to 10 cm is 60cm.
How to find the perimeter of the rectangle?If we look at triangle BCE, we will see that triangle BCE is isosceles based on the fact that both angles are equal to 45 degrees.
Hence,
BC = CE =10 cm
Lengths of the base and height = 20 and 10
Now let find the perimeter of the rectangle
Perimeter of the rectangle = 20 + 10+20+10
Perimeter of the rectangle = 60cm
Therefore the perimeter of the rectangle is 60cm.
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Find the missing Length 27 ? 8 10
let the missing length = x
[tex] \frac{ x }{27} = \frac{8}{8 + 10} \\ [/tex]
Corresponding side of congruent triangle are similar...
[tex] \frac{x}{27} = \frac{8}{18} \\ [/tex]
[tex]18x = 216[/tex]
[tex]x = \frac{216}{18} \\ [/tex]
[tex]x = 12[/tex]
hence the missing length is 12...
What is the distance between the points 2 0 and (- 3 2?.
The distance between the points (2, 0) and (-3, 2) = 5.4 units.
As we know according to the distance formula the distance between points (x₁, y₁) and (x₂, y₂) is given by,
[tex]d = \sqrt{[(x_2 - x_1)^2 + (y_2 - y_1)^2]}[/tex]
Here we have been given points (2, 0) and (-3, 2)
Let us assume that (x₁, y₁) = (2, 0)
and (x₂, y₂) = (-3, 2)
Let d represents the distance between points (2, 0) and (-3, 2)
Using above distance formula the distance d between given points would be,
[tex]\Rightarrow d = \sqrt{[(x_2 - x_1)^2 + (y_2 - y_1)^2]}\\\\\Rightarrow d = \sqrt{[(-3 - 2)^2 + (2 - 0)^2]}\\\\\Rightarrow d = \sqrt{[(-5)^2 + (2)^2]}\\\\\Rightarrow d = \sqrt{25+4}\\\\\Rightarrow d = \sqrt{29}\\\\\Rightarrow d = 5.4~units[/tex]
Therefore, the distance is 5.4 units.
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The complete question is:
What is the distance between the points (2, 0) and (- 3, 2)?.
due in 10 min help please!!!!!
Answer: x= 12.4
Step-by-step explanation:
you should use trigonometry for this question, and you will have to follow tan to find the opposite side of the right-angled triangle.
tanθ = [tex]\frac{O}{A}[/tex]
tan(54°)= [tex]\frac{x}{9}[/tex]
tan(54)°x 9 = x (you should cross multiply)
x= 12.39
x= 12.4
How do you find the domain and range of a negative square root function?.
As a result, the square root function has a range of [0,]. Any x value for which the radicand (the value below the radical sign) is not negative is the domain of a radical function.
This indicates that x 5 equals 0. due to the fact that the square root must always be positive or 0
What is a negative function's domain?All of a function's possible x-values, or inputs, are included in its domain. Both positive and negative numbers are included in this.
What happens if my square root is negative?The fact that the square root of any real number x cannot be negative creates this problem. As a result, the system of real numbers does not contain the square root of a negative number.
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Please help and show work only do the left side
bottom was cut off a bit its 4=b
On Thursday, 4 out of the first 10 students who ate a school lunch chose spaghetti. Based on this information, if 640 students ate a school lunch on Thursday, how many students could be expected to have chosen spaghetti?
Answer:
256
Step-by-step explanation:
Given the function h(x)=-x²+4x+12, determine the average rate of change of the function over the interval -1≤x≤8
Step-by-step explanation:
the average rate of change is
(h(interval end) - h(interval begin)) /
(interval end - interval begin)
in our case this is
(h(8) - h(-1)) / (8 - -1) = (108 - 9) / 9 = 99/9 = 11/1 = 11
The first of two numbers decreased by five
times the second number equals -10. The first
number decreased by two times the second
number equals -1. Find the numbers.
Answer:
First number = 5, second number = 3
Step-by-step explanation:
we can write this as x–5y = –10 and x – 2y = –1 so we know now that 3y = 9 so we divide both by 3 to get: y = 3
now that we know the second number we can multiply it by 2 to get 6 and now we just have to figure out what – 6 is –1 which would be 5
The decreased numbers are first number is 2. and the second number is -9.
What is an equation?A mathematical statement known as an equation is made up of two expressions joined together by the equal sign.
Given that, there are two numbers, first of two numbers decreased by five times the second number equals -10. The first number decreased by two times the second number equals -1.
x - y = 0
The first number decreased 5 times
-5 -y = -10
-y = -10 + 5
-y = -5
y = 5
The second number decreased 2 times
x - (-2) = -1
x + 2 = -1
x = -1 -2
x = -3
Now,
the first number is
-3 - 5 = -10
-8 = -10
10-8 = 0
2 = 0
the second number is
-3 - 5 =-1
-8 = -1
-8 +1 =0
-9 = 0
Hence, the answer is 2, -9.
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How many degrees is a 360?.
The measure in degrees of the angle, the 1/360 of a circle is equals to one degree.
First note the following information: Degrees is an angular unit. The One rotation around the circle is equals to the 360 degrees. Angles measured in degrees always require the unit "degrees" after either a number or the degree symbol °. For example, 90 degrees = 90°. Rotation is 360 degrees, so angles greater than 360 degrees indicate more than a full rotation. The resulting direction that, when plotted on a circle, makes the endpoint of that angle the same as any other angle between 0 and 360 degrees. These angles are called coends. The arc should be proportional to the angle. The circle should be 360 degrees. Therefore, the degree of the angle is = 1/360 ( 360°) = 1 degree. From this we can conclude that the degree of the angle is 1 degree.
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Complete question:
How many degrees is a circle of 1/360?.
Which statements are true about the reflectional
symmetry of a regular heptagon? Select two options.
O It has only 1 line of reflectional symmetry.
0 A line of symmetry will connect 2 vertices.
O Aline of symmetry will connect a vertex and a
midpoint of an opposite side.
O It has 7-fold symmetry.
O A line of symmetry will connect the midpoints of 2
opposite sides.
The statements that are true about the reflectional symmetry of a regular heptagon are:
A heptagon is a type of shape.
A two-dimensional shape having seven sides and seven angles is called a heptagon. It is a member of the two-dimensional geometry polygon class. Polygons are closed geometric shapes with only straight edges. In Greek, "hepta" denotes seven, while "gonia" denotes an angle.
A line of symmetry will connect a vertex and a midpoint of an opposite side.
It has 7-fold symmetry.
A regular heptagon has 7-fold symmetry, which means that it can be divided into 7 identical parts by rotating it by 360/7 = 51.43 degrees. Since it has 7 sides, a line of symmetry will connect a vertex and a midpoint of an opposite side.
It has only 1 line of symmetry, and a line of symmetry will not connect 2 vertices or the midpoints of 2 opposite sides.
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What is the plot of a graph?.
A scatter plot is a form of plot or mathematical diagram that uses Cartesian coordinates to display values for typically two variables for a collection of data.
It is also known as a scatter graph, scatter chart, scattergram, or scatter diagram. A plot is a visual representation of a data collection, typically in the form of a graph illustrating between two or more variables.
But you may also do this with data that is offered in tabular form. Graphs may also be used to count off the value of an unknowing variable plotted as a function of a known variable if a scale or ruler is available.
Graphs and charts are useful visual aids because they make information accessible and quick to understand. When data is displayed as a graph rather than a table, it can often be easier to understand because the graph might show a pattern or comparison.
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Determine the missing step for solving the quadratic equation by completing the square.
0 = –6x2 + 24x – 5
5 = –6x2 + 24x
5 = –6(x2 – 4x)
inside the parentheses and
.
–19 = –6(x – 2)2
StartFraction 19 Over 6 EndFraction = (x – 2)2
Plus or minus StartRoot StartFraction 19 Over 6 EndFraction EndRoot = x – 2
The two solutions are
Plus or minus StartRoot StartFraction 19 Over 6 EndFraction EndRoot
Answer:2 = x
The missing step is:
Take the square root of both sides of the equation to get the value of x, which is:
x = 2 ± √(19/6)
Now we have our solutions, x = 2 + √(19/6) and x = 2 - √(19/6) which are the solutions of the quadratic equation.
Step-by-step explanation:
Answer: 1) Add 4 2) Subtract 24 from 5 3) 2
Correct on Edge 2023 :)
Which set of numbers contains only solutions to the inequality 2-3x>17?
A. x= -5, -3, 0, 1
B. x= -12, -9, -8, -5
C.x= -9, -8, -7, -6
D. x= -2, -1, 0, 1
To find the solution set for the inequality 2 - 3x > 17, we can start by solving for x:
2 - 3x > 17
3x < 15
x < 5
So, the solution set for the inequality is all values of x that are less than 5.
Of the options given, only the set C, x = -9, -8, -7, -6, contains only numbers that are less than 5. Therefore, the set of numbers that contains only solutions to the inequality is C, x = -9, -8, -7, -6.
Write log 4 + log 7 - log 2 as a single logarithm. Which of the following is the answer
1) log 14
2) log 25
3) log 28
4) log 56
The answer is Option 3: log 28.
What is logarithm?Logarithm is a mathematical function that is used to determine the exponent of a given number. For example, the logarithm of 8 is equal to 3, since 2 to the power of 3 is equal to 8. Logarithm is also known as log and is commonly used in scientific calculations to simplify complex equations.
This can be derived by using the logarithmic rule of multiplication and addition: log(ab) = log(a) + log(b). In this case, log 4 + log 7 - log 2 = log(4*7) - log 2 = log 28.
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What's the answer to x3 y3 z3 K?
42 is the answer to x3 y3 z3 K in sum of cubes problem.
How can I solve the sum of cubes problem?In mathematics, completely by accident, there is a polynomial equation whose solution, 42, has similarly baffled mathematicians for decades. The "sum of cubes problem" refers to the equation x3+y3+z3=k.
The "sum of cubes problem" refers to the equation x3+y3+z3=k. The most brilliant mathematicians in the world have been baffled by a mathematical problem for decades. A Diophantine equation known as "summing of three cubes" is x3+y3+z3=k, where k is the sum of all the numbers between one and 100. ∴ 3xyz will be the necessary outcome.
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What is the relation between mean median and mode Class 10?.
The relation between mean, median and mode the difference between mean and mode is equal to three times the difference between the mean and median.
The average of a set of numerical data is referred to as the arithmetic mean. Either a weighted average or a basic average is possible. Adding up all the data from the data set, we divide it by the total frequency to get the simple average.
When a data set is ordered in either a descending or an ascending order, the median is the number that falls in the middle of the range. Because it removes the outliers, the median is far more useful than the mean.
The most frequent number in a dataset is referred to as the mode. There could be one mode, several modes, or none at all for a given collection of integers.
(Mean - Median) = 1/3 (Mean - Mode).
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What is the inverse of a relation?.
The inverse of a relation is a relation obtained by interchanging or swapping the elements or coordinates of each ordered pair in the relation.
Let R be a relation from a set A to another set B. Then R is of the form. The inverse relationship of R is denoted by R-1 and its formula is R-1 ={(y, x): y∈B and x∈A}.
The first element of each ordered pair of R = the second element of the corresponding ordered pair of R-1 and
The second element of each ordered pair of R = the first element of the corresponding ordered pair of R-1.
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What is the quotient of the complex numbers?.
To divide complex numbers, multiply both the numerator and denominator by the conjugate of the denominator. To find the conjugate, just change the sign in the denominator.
Now, According to the question:
The complex number is basically the combination of a real number and an imaginary number. The complex number is in the form of a+ib, where a = real number and ib = imaginary number. Also, a,b belongs to real numbers and i = √-1.
Hence, a complex number is a simple representation of addition of two numbers, i.e., real number and an imaginary number. One part of it is purely real and the other part is purely imaginary.
To divide complex numbers, multiply both the numerator and denominator by the conjugate of the denominator. To find the conjugate, just change the sign in the denominator.
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I’m a sample of 2000 people, 430 people have their ears pierced. Two unrelated people are selected at random without replacement. Find the probability that both people have their ears pierced
The probability that both people have their ears pierced is calculated by dividing the number of people with pierced ears by the total number of people in the sample. This can be expressed as a fraction, with 430/2000 = 0.215, or 21.5%.
What is a probability?Probability is a measure of how likely an event is to occur. It is stated as a number between 0 and 1, with 0 indicating that the occurrence is impossible and 1 indicating that the event is unavoidable.
In this question, by dividing the number of persons with pierced ears by the total number of participants in the sample to find the chance that both people have their ears pierced. In this situation, the answer is 430/2000 = 0.215.
This may be read as follows: 430 persons out of every 2000 get their ears pierced. Therefore the chance of picking two persons at random from this sample who both had their ears pierced is 0.215, or 21.5%.
This may also be stated as a fraction, with the numerator being the number of persons with pierced ears (430) and the denominator representing the total number of participants in the sample (2000). As a result, the likelihood is 430/2000, or 0.215.
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Can someone please tell me how to do equivalent ratio tables
Daffynition decoder answers page 16. 7? hints are ozone and mistletoe from the punchline algebra book b
The answer for the Daffynition Decoder is 7.
The formula is O3 - M2 = 7. The calculation is to take the ozone (O3) and subtract the mistletoe (M2). O3 stands for ozone, which is composed of three atoms of oxygen and is represented by the number 3. M2 stands for mistletoe, which is composed of two atoms of oxygen and is represented by the number 2. The formula used to calculate the answer is m = 2o + 1, where m is the number of mistletoes and o is the number of ozones. The calculation is as follows: if there are 2 ozones, then the number of mistletoes is 2(2) + 1 = 5. Therefore, the answer is 7 (5 mistletoes and 2 ozones). This formula is useful for quickly calculating the total number of items when you know the number of each type of item.Therefore, if we subtract the mistletoe from the ozone, we get the answer of 7. In summary, O3 - M2 = 7.
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How do you solve quadratic equations by factoring examples?.
We can use zero product property in a series of steps to find the quadratic equation by factoring.
In mathematics, the zero product property states that if A and B are mathematical expressions, and AB = 0, then A = 0 or B = 0.
The steps that we use to solve a quadratic equation by factoring are as follows:
1- Put the equation in the form ax² + bx + c = 0, where a, b, and c are constants.
2- Factor ax² + bx + c.
3- Use the zero product property to set each factor equal to 0.
4- Solve each of the resulting equations for x.
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How do you find the standard deviation of 4?.
The standard deviation of 4:
Calculate the Mean (the simple average of the numbers)Subtract the Mean from each value, then square the result.Calculate the mean of those squared differences next.We're done when we take that's square root!The standard deviation is a statistic that expresses how much variance or dispersion there is in a group of numbers. While a high standard deviation suggests that the values are dispersed throughout a wider range, a low standard deviation suggests that the values tend to be close to the established mean.
In descriptive statistics, the standard deviation measures how widely the data points vary from the mean. It describes how values are distributed throughout the data sample and measures how widely apart data points are from the mean. The square root of the variance is used to calculate the standard deviation of a sample, statistical population, random variable, data collection, or probability distribution.
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How do you write a logarithmic expression?.
Write a logarithmic expression in the form [tex]log_{b}M[/tex] = N.
In an exponential equation, the variable is expressed as an exponent. A logarithmic equation uses the logarithm of an expression including a variable to solve the problem. Check to determine if you can write both sides of an exponential equation as powers of the same number before attempting to solve it. If you can't, use property after taking the common logarithm of both sides of the equation.
Use the properties of logarithms to express the equation in the form [tex]log_{b}M[/tex] = N, then convert it to exponential form, M = [tex]b^{N}[/tex], to solve an equation requiring logarithms.
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What is the maximum possible value of the greatest common divisor of two consecutive terms of the sequence $a_n = n! + n$, where $n \ge 0$?
Answer:
2
Step-by-step explanation:
You want the largest possible greatest common divisor of consecutive terms of the sequence an = n! +n.
SequenceThe sequence starts off 2, 4, 9, 28, 125, ...
The first two terms have a GCD of 2. The remaining pairs of terms have a GCD of 1.
The maximum possible GCD of adjacent terms is 2.
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What is Y =- 2 on a graph?.
The equation y = -2 is represented on the graph as shown below :
Use the slope-intercept form to find the slope and y-intercept.
The slope, m, represents the steepness of a line. The slope of the line is also termed as gradient, sometimes. The y-intercept, b, of a line, represents the y-coordinate of the point where the graph of the line intersects the y-axis.
The slope-intercept form is
y = mx + b, where m is the slope and b is the y-intercept.
y = mx + b
Find the values of m and b, using the slope-intercept equation.
y = -2
m = 0, b = -2.
The slope of this line = m = 0
The y-intercept = -2, therefore a point on the line = (0,-2)
Finding two points on the line:
(0,-2), (1,-2)
Thus, the equation y = -2 on graph is shown below.
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express 52 Kobo as a decimal of 1.00
We have expresses 53 Kobo as a decimal of 0.52 Naira.
What is decimal?A number that is not a whole is written using decimals. Between whole numbers are decimal numbers. 12.5, a decimal number that falls between 12 and 13, serves as an illustration of this. It is less than 13, but it is greater than 12. It's crucial to remember that fractions and decimal numbers are equivalent; the only difference is how they are expressed.
In keeping with the previous illustration, the mixed number 12 12 and 12.5 are equivalent numbers. No matter how complex the decimal is, this is true. For instance, 0.75 and 3/4 are equivalent. If you wanted to go even further, you could say that 0.75 is equivalent to 75%.
We know that 1 Kobo = 0.01 naira
Therefore, 52 kobo = 0.01 × 52 naira
= 0.52 naira
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51 is 20% of what number?
Answer:
255
Step-by-step explanation:
51 x 100/20