How to determine this
Using product rule,
[tex]\frac{d}{dx}[/tex](u.v) = du/dx.v + dv/dx.u
where u = x-5
v = x+7
Using the rule,
d/dx = 1(3x + 7) + 3(x - 5)
d/dx = 3x +7 +3x - 15
d/dx = 6x - 8
Using the expanding, then differentiating,
d/dx = (x - 5)(3x + 7)
open bracket,
d/dx = 3x^2 + 7x - 15x - 35
Differentiating it,
d/dx = 6x + 7 - 15
d/dx = 6x - 8
Therefore, using different rule,it has been verified that both methods gave the same results.
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Please help. Find the output, y When the input, x, is -7.
The output value of y when input value x is -7: -6
What are functions?Function is a relation between a set of inputs and a set of outputs which are permissible. In a function, for particular values of x we will get only a single image in y. It is denoted by f(x).
Vertical line test:-
Whenever we want to check given expression is a function or not we can check it by a vertical line test, in this test we check for a single image of x , we are getting a single image or more.
If we get more images then it will not be a function.
For example, let us take, y² = 4ax
y = ±√4ax
For single value of x we get two values of y
Hence, it will not be a function.
Given that,
A graph of a function,
And input value x = -7
output value y = ?
As it can be seen in the graph,
For input value x = 0
output value of y = -2
Similarly,
for input value x = -7
It can be seen in the graph that
the value of y = -6
Hence, the value of y is -6
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what is prepaid expense?
Answer:
Prepaid expenses are payments made in advance for goods or services that will be received or used in the future. These expenses are considered assets on a company's balance sheet because they provide future economic benefits. Examples of prepaid expenses include rent payments made in advance, insurance premiums, and prepaid service contracts. They are recorded as an asset on the company's balance sheet until the expense is incurred, at which point it is recognized as an expense on the income statement.
Step-by-step explanation:
Five people will share a roll of ribbon equally. The roll has 32 feet of ribbon. How much ribbon, in feet, will each person get?
A. 5/32
B. 1/32
C. 6 2/5
D. 1/5
Answer:
C
Step-by-step explanation:
In this equation, you would need to do 32/5 to figure out how much each person will get. 32/5=6.4 feet
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melinda is practicing her penalty kicks. She took 40 shots and only missed 8. Based on the data,how many kicks will she make if she takes 60 shots
Answer:
48 kicks
Step-by-step explanation:
If she shoots 40 times and misses 8, we can create a ratio to represent the number of total shots to the number of misses:
40/8 = 60/x X represents the amount she will miss if she takes 60 shots.
We can find the value of x by using cross multiplication:
480 = 40x. We can now isolate x by dividing both sides by 40:
X = 12.
Melinda will miss 12 out of 60 shots.
She will make 48 kicks.
O REAL NUMBERS
Signed fraction multiplication: Basic
Multiply.
(-9) (-7/3)
Write your answer in simplest form.
Answer:
21
Step-by-step explanation:
(-9)([tex]-\frac{7}{3}[/tex]) = 63/3 = 21
The accompanying table shows the results of a survey in which 250 mail and 250 female workers ages 25 to 64 or asked if they contribute to retirement savings plan at work find the probability that a randomly selected worker contribute to a retirement savings plan at work given the worker is male
Answer:
The answer to your question is, 0.484
Step-by-step explanation:
The actual chances of an event occurring are defined by a probability. Probability has several uses in games, and in business to create probability-based forecasts which bascially how it works.
Lets graph it out:
Let A signify that the selected employee participates to a workplace retirement savings plan. Let P stand for the male employes.
P(A∩P) the intersection of male & female.
P(A\P) is the probability that a randomly picked worker participates to a workplace retirement savings plan is the option male
The probability that a randomly selected worker contributes to a retirement savings plan at work is male is found in this formula :
P(A\P)=P(A∩P)/A(P)
P(A\P)=(121/500)/(250/500)
P(A\P)=0.484
Thus, the probability that a randomly selected worker contributes to a retirement savings plan at work that is male will be,
0.484.
PLEASE HELP!!! 4 questions
The value of x from the given triangle is approximately 19.10.
What is triangle?
Triangle can be defined in which it consists of three sides , three angles and sum of three angles is always 180 degrees.
We can use the Pythagorean theorem to find the value of x. The theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides. Mathematically, it can be represented as follows:
c² = a²+ b²
where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.
In this problem, c = 25, and we need to find the value of x which is the length of one of the other two sides. Let's call the other side y. Then, we can write the equation as follows:
25² = x² + y²
We are also given that the angle between x and y is 41 degrees. We can use trigonometry to find the value of y. The sine function gives us the ratio of the opposite side to the hypotenuse, so we can write:
sin(41) = y/25
Therefore, y = 25 * sin(41). Now that we have the values of x and y, we can substitute them in the equation derived from the Pythagorean theorem:
25² = x² + (25 * sin(41))²
Solving for x, we get:
x = √(25²- (25 * sin(41))²)
Using a calculator, we get that sin(41) = 0.661437827766148.
Now, we can substitute this value in the equation:
x = √(25² - (25 * sin(41))²)
x = √(25² - (25 * 0.661437827766148)²)
x = √(25² - (16.0359050108801)²)
x = √(625 - 256.132749101278)
x = √(368.867250898722)
x = 19.10
Hence, The value of x is approximately 19.10
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Use the commutative and/or associative properties to simplify (17)(0.25)(4).
The solution is, (17)(0.25)(4) = 17.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
given that,
(17)(0.25)(4)
=(17)*1
=17
at first we have to multiply the last two terms i.e. (0.25) and (4), then, we multiply the result 1 with 17, and get the result 17.
Hence, The solution is, (17)(0.25)(4) = 17.
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Help with these questions pls?
Answer:
£76
Step-by-step explanation:
[tex]28+16(1.5/0.5)=28+16(3)=28+48=76[/tex]
Can you please tell me the graphing points for this equation?
y = 2^(x+5) +1
The graphing points of the equation is given in the table.
What is an equation?An equation is a statement that asserts the equality of two expressions, the expressions are written one on each side of an '=' equal to sign.
Given equation is [tex]y=2^{x+5} +1[/tex].
To find the graphing points of the functions:
By assuming the value for x and substitute in the given function to find the values of y.
[tex]if x=-2,y=2^{-2+5} +1=9\\ifx=-1, y=2^{-1+5} +1=17\\if x=0,y=2^{0+5} +1=33\\if x=1,y=2^{1+5} +1=65\\ifx=2,y=2^{2+5} +1=129[/tex]
It is given the table format as,
x [tex]y=2^{x+5} +1[/tex]
-2 9
-1 17
0 33
1 65
2 129
Hence, these are all the graphing points of the equation.
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Use a graphing utility to graph the cost and revenue functions in the same viewing window. Find the sales x necessary to break even (R = C) and the corresponding revenue R obtained by selling x units. (Round to the nearest whole unit.)
Cost Revenue
C = 7.8 √x + 22,000 R = 13.82x
The revenue corresponding to break even condition for selling x units is $4.28.
What is a cost function?An evaluation of the model's accuracy in estimating the link between X and y is done using a cost function. In most cases, this is represented as a difference or distance between the projected value and the actual value. The price element (you may also see this referred to as loss or error.)
To break even (R = C) we have:
7.8 √x + 22,000 = 13.82x
Substitute the value of x = u² thus:
7.8u +22000 = 13.8u²
13.8u² - 7.8u - 22000 = 0
The quadratic formula is given as:
u = -b ± √b² - 4ac / 2a
u = -(-7.8) ± √(-7.8)²- (4)(13.82)(22000) / 2(13.82)
u = 7.8 ± 7.8 / 27.64
u = 7.8 + 7.8 / 27.64
u = 0.56
Back substituting the value of u:
x = u²
x = (0.56)²
x = 0.31
Substituting the value of x is R:
R = 13.82 (0.31)
R = 4.28
Hence, the revenue corresponding to break even condition for selling x units is $4.28.
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A curve is defined by the implicit equation X³ + X²Y + 4Y² = 6.
Find the value of day/dx when X = 1 and when Y = 1.
Find the value of day/dx when X = 1 and when Y = 1. I would like to answer correct but Find the value of day/dx when X = 1 and when Y = 1.Find the value of day/dx when X = 1 and when Y = 1.Find the value of day/dx when X = 1 and when Y = 1.Find the value of day/dx when X = 1 and when Y = 1.Find the value of day/dx when X = 1 and when Y = 1.Find the value of day/dx when X = 1 and when Y = 1.Find the value of day/dx when X = 1 and when Y = 1.Find the value of day/dx when X = 1 and when Y = 1.Find the value of day/dx when X = 1 and when Y = 1.
Isaac made all these rectangles with 24cm lengths of string. This implies that the perimeter of all these rectangles are equal. What do you observe about the sun of the length and the width, give a reason for your answer?
Answer: Since the perimeter of all the rectangles is equal (24 cm), the sum of the length and width of each rectangle must be equal for each rectangle. This is because the perimeter of a rectangle is equal to the sum of its lengths plus the sum of its widths, multiplied by 2.
For example, if the length of one rectangle is "l" cm and its width is "w" cm, then its perimeter would be 2l + 2w = 24 cm.
So, in general, we can write the equation: l + w = P/2, where P is the perimeter of the rectangle (in this case, P = 24 cm).
Therefore, the sum of the length and width of each rectangle is equal and constant, regardless of the individual values of the length and width. This means that as the length of a rectangle increases, its width must decrease by an equal amount to keep the sum constant. And vice versa.
In conclusion, the sum of the length and width of each rectangle is equal, and it is equal to half of the perimeter of the rectangle.
Step-by-step explanation:
Given that [tex]\frac{|z - 5i|}{|z + 5i|} = 1[/tex] , show that z lies on the x-axis.
The proof that z lies on the x-axis is shown below
How to show that z lies on the x-axis.For z to lie on the x-axis, then the coordinate must be represented as (x, 0)
Given that
[tex]\frac{|z - 5i|}{|z + 5i|} = 1[/tex]
We start by simplifying the given expression using the definition of the modulus of a complex number:
So, we have
[tex]\frac{|z - 5i|}{|z + 5i|} = \frac{\sqrt{(x - 0)^2 + (y - 5)^2}}{\sqrt{(x - 0)^2 + (y + 5)^2}} = 1[/tex]
Where
z = x + yi or z = (x, y)
Squaring both sides of the equation above, we obtain:
[tex]\frac{(x - 0)^2 + (y - 5)^2}{(x - 0)^2 + (y + 5)^2} = 1[/tex]
This gives
[tex]\frac{x^2 + (y - 5)^2}{x^2 + (y + 5)^2} = 1[/tex]
By comparison, we have
[tex](y + 5)^2 = (y - 5)^2[/tex]
Set y = 0 to test the equation
So, we have
[tex](0 + 5)^2 = (0 - 5)^2[/tex]
25 = 25 --- true
The equation is true for y = 0
This means that
z = (x, 0)
Hence, z lies on the x-axis
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Step 1: 3 - 5 = √√4x + 6
Step 2: 3x - 5-6 = √4x+6-6
Step 3: 3x 11 = √/4x
Step 4: (3x - 11)² =(√4x)
What is the next step in the solution to this equation?
The next step in the solution to this equation is to evaluate the exponents
How to determine the next step in the solution to this equationFrom the question, we have the following parameters that can be used in our computation:
The steps 1 to 4
Using the above as a guide, we have the following:
Step 4: (3x - 11)² =(√4x)²
At this point,, we open the bracket
This is done by evaluating the exponents
So, we have
9x² - 66x + 121 = 4x
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The radius of a circle is 14 meters. What is the circle's circumference?
Answer: 87.96m
Step-by-step explanation:
Circumference of a circle = 2[tex]\pi[/tex][tex]r^{2}[/tex] --> 2[tex]\pi[/tex]14² = 87.96m
18.
Credit scores are made of _____.
credit history, payment history, debt ratio, and types of credit
creditworthiness
FICO
credit profile
Credit scores are made of credit history, payment history, debt ratio, and types of credit which is therefore denoted as option A.
What is a Credit score?This is referred to as a numerical expression based on a level analysis of a person's credit files, to represent the creditworthiness of an individual.
It is a prediction of how likely you are to pay a loan back on time based on information from your credit reports and has different components such as the credit history, payment history, debt ratio, etc.
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Please help question below
The equation for option 1 is y = 3.5x + 7.5 and option 2 is y = 5.5x. Option 1 will be the least expensive. The solution has been obtained by using the slope-intercept form.
What is slope-intercept form?
The graph of the equation y = mx + b is represented by a line with a slope of m and a y-intercept of b. The slope-intercept representation of the linear equation is employed, and the values of m and b are real numbers.
We are given two options.
Using slope-intercept form, we get the equations as
Option 1
It requires monthly fee of $7.50 which means this is the y-intercept and $3.50 per game which means this is the slope.
So, the equation is y = 3.5x + 7.5
Option 2
Slope = (33 - 16.5)/ (6 - 3)
Slope = 16.5/ 3
Slope = 5.5
The y-intercept for this is 0.
So, we get the equation as y = 5.5x.
Fee for renting 5 games
As per option 1: y = 3.5(5) + 7.5 = $25
As per option 2: y = 5.5(5) = $27.5
Hence, option 1 will be the least expensive.
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For the function
f(x)
given in the table, find the average rate of change over each specified interval.
x
0 2 2.5 3 3.8 4 5
f(x)
24 13 17 18 16 13 29
(a) [2, 5]
Incorrect: Your answer is incorrect.
(b) [3.8, 4]
The average rate of change over each specified interval is 8/3 and -10.
What is an average rate?The average rate shows the change in the function per unit, over an interval.
Given that, find the average rate of change over each specified interval.
The average rate of change is given by
f(b)-f(a) / b-a
a) [2, 5] :-
To find the average rate of change we will take the change in the function over the change in x,
f(5)-f(2) / 5-2 = 24-16 / 3 = 8/3
Therefore, the average rate of change in interval [2, 5] is 8/3
b) [3.8, 4] :-
Similarly,
f(4)-f(3.8) / 4-3.8 = 17-19 / 0.2 = -2/0.2
= -10
Therefore, the average rate of change in interval [3.8, 4] is -10
Hence, the average rate of change over each specified interval is 8/3 and -10.
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a square law has area 128ft squared what is the radius of the circle
Answer: 6.38
.................
Solve the equation for all real solutions in simplest form.
2q² +11q+13= 0
You are interested in the development of language in bilinguals. You are able to locate five families in the word with 18-month-old toddlers who are learning both Swahili and Vietnamese simultaneously. Given that these are the only families that fit this qualification, therefore, these five families are your study population. You test the children to see how many words they can speak in Swahili. The results are listed in the following table: Calculate the mean for this population. Complete the following table. Calculate the variance and standard deviation for this population.
The mean for this population is 55. The variance and standard deviation for this population are 94.8 and 9.74
The data is given for five families and their children are tested to see how many words they can speak in Swahili.
Toddler Number of words(X) X - M (X - M)²
A 47 - 8 64
B 73 18 324
C 56 1 1
D 46 -9 81
E 53 -2 4
424
Mean of the population(M) = (∑X)/n
= (47 + 73 + 56 + 46 + 53)/5
= 275/5 = 55
Variance f population (σ²) = (X - M)²/n = 474/5 = 94.8
Standard deviation of population(σ) = √94.8 = 9.74
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Mr. Lopez surveyed some of the students in the after-school program to figure out whether he should buy jumbo chocolate chip cookies or cinnamon twists for dessert. The circle graph shows the results. Cinnamon twists were chosen by 12 students. How students said he should buy jumbo chocolate chips cookies?
68 students said that Mr.Lopez should buy jumbo chocolate chip cookies.
What is a circle graph?
A pie chart, often known as a circle chart, is a visual representation of the various values of a specific variable or a means to summarise a set of nominal data (e.g. percentage distribution). This kind of chart consists of a circle with numerous segments.
Let's say the total number of students = X.
From the circle graph, we can say that 15% of students chose cinnamon twists and their count is 12.
Which means that
[tex]X*\frac{15}{100}=12\\ X=80[/tex]
Therefore the total number of students is 80.
Among the 80 students except for 12 students, the remaining students asked for jumbo chocolate chip cookies.
Which is equal to 80-12=68.
Therefore 68 students said that Mr.Lopez should buy jumbo chocolate chip cookies.
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Arturo purchased the tank below for his aquatic turtle. The tank has a length of 5.5 feet, a width of 4 feet, and a height of h feet. Arturo poured in 74.8 cubic feet of water in the tank to fill it half way. What is the value of h, the height of the tank, in feet?
Answer:
6.8 ft
Step-by-step explanation:
You want the height of a tank with a base of 5.5 ft by 4 ft if adding 74.8 ft³ of water fills it halfway.
VolumeThe volume of a rectangular prism is given by the formula ...
V = LWH
The filled volume of the tank h feet high is ...
74.8 ft³ = (5.5 ft)(4 ft)(h/2) . . . . . . the filled height is h/2
74.8 ft³/(11 ft²) = h ≈ 6.8 ft . . . . . . divide by the coefficient of h
The height of the tank is 6.8 feet.
Blake needs a wooden dowel that is 2 1/6 feet
long. How much should he cut off the dowel
shown below?
-5 1/4 ft
Blake needs a wooden dowel that is 2 1/6 feet long. Blake needs to cut off 7.4167 feet from the dowel.
What are arithmatic operations?
Arithmetic operations is a branch of mathematics, that involves the study of numbers, the operation of numbers that are useful in all the other branches of mathematics. It basically comprises operations such as Addition, Subtraction, Multiplication, and Division.
To find out how much Blake should cut off the dowel, we need to subtract the length of the dowel from the required length.
The length of the dowel is -5 1/4 feet, which can be written as -5.25 feet.
The required length is 2 1/6 feet, which can be written as 2.1667 feet (rounded to four decimal places).
To find out how much needs to be cut off, we can subtract the length of the dowel from the required length:
2.1667 ft - (-5.25 ft) = 7.4167 ft
Therefore, Blake needs to cut off 7.4167 feet from the dowel.
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Let A, B, and C be events relative to the sample space S. Using Venndiagrams, shade the areas representing events:
a.) (A∩B)′
b.) (A∪B)′
c.) (A∩C)∪B
If A, B and C be events relative to the sample space S, then the Venn diagram of the representing event has been plotted
Let A, B and C be events relative to the sample space S.
The sample space is the set of all possible outcomes of the experiment.
The Venn diagram is the pictorial representation of the sample space of the experiment by using the circles and the overlapping of the circles.
Here we have to plot the each representing events using the Venn diagram representation
Part a
The event is (A ∩ B)'
Plot the Venn diagram
Part b
The event is (A ∪ B)'
Plot Venn diagram
Part c
The event is (A ∩ C) ∪ B
Plot the Venn diagram
Therefore, the Venn diagram of the each event has been plotted
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What should be added to -7 mm + 2m ²+ 3n² to obtain 5m² +2mn-9n².
The expression to be added is 9mn +3m² - 12n²
What are algebraic expressions?These are expressions having terms, variables, coefficients, factors and constants.
They are also known to be composed of arithmetic operations, such as;
AdditionMultiplicationDivisionSubstraction BracketParenthesesFrom the information given, we have the expression;
-7 mm + 2m ²+ 3n²
To make it up to 5m² +2mn-9n²., we have
-7mn + 9mn + 2m² + 3m² + 3n² - 12n²
Hence, the expression is 9mn +3m² - 12n²
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Find the 52nd term of the arithmetic sequence
−
3
,
12
,
27
The 52nd term of the arithmetic sequence -3, 12, 27, ..... is equal to 762.
How to calculate an arithmetic sequence?Mathematically, the nth term of an arithmetic sequence can be calculated by using this expression:
aₙ = a₁ + (n - 1)d
Where:
d represents the common difference.a₁ represents the first term of an arithmetic sequence.n represents the total number of terms.Next, we would determine the common difference as follows.
Common difference, d = a₂ - a₁
Common difference, d = 12 - (-3)
Common difference, d = 12 + 3
Common difference, d = 15
Substituting the given parameters into the formula, the 52nd term of this arithmetic sequence is given by;
a₅₂ = a₁ + (52 - 1)d
a₅₂ = -3 + (51)(15)
a₅₂ = -3 + 765
a₅₂ = 762.
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Provide evidence of how you manage your staff to manage complain
One way to manage your staff to manage complaints would be to establish clear procedures for handling complaints and regularly train staff on these procedures.
How to manage staff complaints ?Establishing clear procedures for handling complaints and training staff helps to ensure that all complaints are handled consistently and effectively, reducing the potential for misunderstandings or conflicts to arise.
Additionally, creating an open-door policy for staff to voice their concerns and providing regular opportunities for feedback can help to identify and address issues before they escalate into complaints. Regular communication and coaching can also help to build strong working relationships and foster a positive workplace culture, reducing the likelihood of complaints in the first place.
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Determine the more basic function that has been shifted, reflected, stretched, or compressed q(x) = -1/x + 1
The more basic function that has been shifted, reflected, stretched, or compressed to create q(x) = -1/x + 1 is the function f(x) = 1/x.
What do you understand by the team function?The transformation applied to f(x) to obtain q(x) is divided into several steps:
Reflection: The negative sign in front of 1/x reflects the graph of f(x) across the x-axis, causing the y-values to change sign.
Vertical shift: Adding "+1" to -1/x raises the graph of f(x) by one unit.
Horizontal shift: Although there is no explicit horizontal shift in q(x), we can see that the graph of q(x) has a vertical asymptote at x=0, whereas the graph of f(x) does not. This means that the graph of q(x) has been shifted to the right by one unit.
The more basic function that has been shifted, reflected, stretched, or compressed to create q(x) = -1/x + 1 is the function f(x) = 1/x.
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