Answer:
The function that represents the graph is:
\(y=-\frac{3}{4}(x-2)^2+4\)Explanation:
The graph represents a parabola with 2 as the horizontal coordinate of the vertex, and 4 as the vertical coordinate of the vertex.
It is written as:
\(y=-\frac{3}{4}(x-2)^2+4\)Someone please answer this emergency pleaseee
Answer:
7). y = 140
8). x = 9
Step-by-step explanation:
Question (7).
All-right pencil factory will produce the graphite pencils, table formed will represent a linear graph.
Three points on the graph are (12, 42) and (18, 63), (40, y)
Slope of the line passing through these points = \(\frac{y_2-y_1}{x_2-x_1}\)
m = \(\frac{63-42}{18-12}\) = \(\frac{y-42}{40-12}\)
\(\frac{21}{6}\) = \(\frac{y-42}{40-12}\)
3.5 = \(\frac{y-42}{40-12}\)
98 = y - 42
y = 140
Question (8),
If a bicyclist rides at a constant rate, table formed will represent a linear graph.
Slope of a line passing through three points (2, 25), (5, 62.5) and (x, 112.5) given in the table,
m = \(\frac{y_2-y_1}{x_2-x_1}\)
\(\frac{62.5-25}{5-2}=\frac{112.5-62.5}{x-5}\)
\(\frac{37.5}{3}=\frac{50}{x-5}\)
37.5x - 187.5 = 150
37.5x = 337.5
x = 9
. A cocoa blender makes a profit of 30% be selling a super mix cocoa at Kshs.650 for 250 grams tin. He makes a super mix cocoa by blending two varieties of cocoa., A and which cost him Kshs. 1 800 and Kshs.2 400 per kg respectively. B In what proportion the cocoa types A and B mixed? were (3 marks)
Answer:
The cost price of 250 grams of super mix cocoa is Kshs.650/1.3=Kshs.500.
The cost price of 1 kg of super mix cocoa is Kshs.500*4=Kshs.2000.
If x kg of cocoa A is mixed with (1-x) kg of cocoa B, then the cost price of the mixture is Kshs.1800x+Kshs.2400(1-x).
Therefore, Kshs.1800x+Kshs.2400(1-x)=Kshs.2000.
Solving for x, we get x=2/3.
Therefore, the cocoa types A and B are mixed in the proportion 2:1.
Set up an equation and solve for x
Answer:
x=22
Step-by-step explanation:
3x+3+27+x+3+2x+18=180
6x+48=180
6x=132
x=22
Real-life Problems Question 6
The amount of money that Theresa has left is equal to £2,740.
How to write a linear equation to model this situation?In order to write a linear equation to describe this situation, we would assign variables to the cost of flights for each of them and the cost of accommodation for each of them respectively, and then translate the word problem into a linear equation as follows:
Let the variable a represent cost of flights for each of them.
Let the variable f represent cost of accommodation for each of them.
Since Theresa paid for herself and 11 friends to go on holiday with a flight cost of £339 and accommodation cost of £266, a linear equation to describe this situation is given by;
y = 12(a + b)
y = 12(266 + 339)
y = £7,260
For the amount of money left, we have:
Amount of money left = £10,000 - £7,260
Amount of money left = £2,740.
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John used AABC to write a proof of the Centroid Theorem. He began by drawing medians AK and CL,
intersecting at Z. Next he drew midsegments LM and NP, both parallel to median AK.
Given: AABC with medians AK and CL, and midsegments LM and NP.
2
Prove: Z is located of the distance from each vertex of AABC to the midpoint of the opposite side.
3
Answer:
Hello your question is poorly written attached below is the complete question
answer : attached below
Step-by-step explanation:
To Prove: Z is located 2/3 of the distance from each vertex of ΔABC to the midpoint of the opposite side. we will apply ; property of bisecting a line , equality theorem , transitive property and similarity theorem
Attached below is the proof
Jim has 1/3 of a pizza to split between four people. How much of the pizza does each person get?
Please help!!
One thousand people stood in a very large circle. Each person wore a sign on their back
with a numeral from 1 to 1000, in a clockwise sequence. They began counting off. The
first person, person A, said "one-in," and remained in the circle. Person B, the person to
the left of A, said "two-out," and left the circle. The person to the left of B, person C, said
"three-in," and remained in the circle. The person to the left, person D, said "four-out,"
and stepped out of the circle.
So it continued with each person wearing an odd number saying "in," and remaining in
the circle, and with every person wearing an even numeral leaving the circle.
It was easy to visualize who remained in the circle when the count off made it all the way
around back to the first person. Since the last person said "one thousand-out," person A,
the first person, said "one-in," and stayed in, while person C, now the next person, said
"three-out," and left the circle. This process would keep going on and on until only one
person was left in the circle.
Who was the last person standing?
The person who gets to say the last number, 1000, will be Person 6.
Here, we have,
In this scenario, we have seven people sitting in a circle and counting clockwise. The goal is to determine which person will say the last number when they reach 1000. To solve this problem, we can use the concept of modular arithmetic.
When dividing 1000 by the total number of people (7), we get a quotient of 142 and a remainder of 6 (1000 = 142*7 + 6). This means that after completing 142 full rounds of counting, the group will have reached the number 994 (142*7). In the next round, they will continue counting from 995 to 1000.
Since the remainder is 6, it indicates that the last number (1000) will be spoken by the person sitting 6 positions after the first person in the circle (clockwise). In other words, Person 1 says numbers 1, 8, 15, and so on, while Person 6 will say 6, 13, 20, and so on.
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complete question:
10) Seven people sit in a circle and begin counting clockwise starting from 1.Each person in the group is keeping track of the numbers she is saying (e.g. 1,8, 15...) If they continue in this way, counting on and on, until they reach 1000, which person will get to say the last number
If the volume of two similar spheres are 128m^3 and 1458m^3.
1. What is their scale factor? (in a ratio)
2. What is the ratio of their surface areas?
Answer:
ZOOM PLZ COME WE R BORED
MEETING ID 798 4170 2552
PASSWORD:XCNeV3
Step-by-step explanation:
Scale factor is 11.39 and ratio is 729:64
what is scale factor?The scale factor is a measure for similar figures, who look the same but have different scales or measures.
volume of two similar spheres are 128m³ and 1458m³.
Scale factor= volume of sphere 1/ volume of sphere 2
= 1458/128
= 729/64
= 11.39
and the ratio = 729 : 64
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-0.9 -1.2 which one is greatest
Answer:
-0.9
Step-by-step explanation:
it is closer to 0
What is the percentage equivalent to 16 over 40?
Answer:
16/40 = 40%
Step-by-step explanation:
I divided 16/40 and got 0.4,
To turn a decimal into a percentage, either multiply by 100 or move the decimal to the right 2 times.
sarah can complete a project in 90 minutes and her sister betty can complete it in 120 minutes if they both work on the project at the same time how long will it take them to complete the project
Answer:
It will take them approximately 51.43 minutes to complete the project together
Step-by-step explanation:
This is what is called a "shared job" problem.
The best way to work on them is to start by finding the "portion" of the job done by each of the people in the unit of time.
So, for example, Sarah completes the project in 90 minutes, so in the unit of time (that is 1 minute) she completed 1/90 of the total project
Betty completes the project in 120 minutes, so in the unit of time (1 minute) she completes 1/120 of the total project.
We don't know how long it would take for them to complete the project when working together, so we call that time "x" (our unknown).
Now, when they work together completing the entire job in x minutes, in the unit of time they would have done 1/x of the total project.
In the unite of time, the fraction of the job done together (1/x) should equal the fraction of the job done by Sarah (1/90) plus the fraction of the job done by Betty. This in mathematical form becomes:
\(\frac{1}{x} =\frac{1}{90} +\frac{1}{120}\\\frac{1}{x} =\frac{4}{360} +\frac{3}{360}\\\frac{1}{x} =\frac{7}{360} \\x=\frac{360}{7} \\x=51.43\,\,min\)
So it will take them approximately 51.43 minutes to complete the project together.
Find the equation of the line.
Use exact numbers.
Answer:
Step-by-step explanation:
Are these shapes similar?
True
False
Answer:true
Step-by-step explanation:because yes
Pls answer part A and part B!!!
Answer:
22222
Step-by-step explanation:
interest rate of 2.99% compounded monthly for a 4 year loan, find the regular monthly payments required to repay the loan.
Using it's formula, considering a loan of $10,000, the regular monthly payments required to pay off the loan will be of $221.3.
What is the monthly payment formula?It is given by:
\(A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}\)
In which:
P is the initial amount.r is the interest rate.n is the number of payments.In this problem, we have that the parameters are given as follows:
P = 10,000, r = 0.0299, n = 4 x 12 = 48.
Then:
r/12 = 0.0299/12 = 0.00249167.
Hence, the monthly payment will be given by:
\(A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}\)
\(A = 10000\frac{0.00249167(1+0.00249167)^{48}}{(1+0.00249167)^{48} - 1}\)
A = 221.3.
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PLEASE HELP!! What is the surface area of the cone?
A drug is administered intravenously at a constant rate of r mg/hour and is excreted at a rate proportional to the quantity present, with constant of proportionality k>0.
(Set up and) Solve a differential equation for the quantity, Q, in milligrams, of the drug in the body at time t hours. Assume there is no drug in the body initially. Your answer will contain r and k.
Q = _______
Graph Q against t. What is Q?, the limiting long-run value of Q?
Q?= _______
If r is doubled (to 2r), by what multiplicative factor is Q? increased?
Q? (for 2r) = ______ Q? (for r)
Similarly, if r is doubled (to 2r), by what multiplicative factor is the time it takes to reach half the limiting value, 12Q?, changed?
t (to 12Q?), for 2r) =________ t (to 12Q?), for r)
If k is doubled (that is, we use 2k instead of k), by what multiplicative factor is Q? increased?
Q? (for 2k) = _______ Q? (for k)
On the time to reach 12Q??
t (to 12Q?), for 2k) = _____ t (to 12Q?), for k)
Answer:
See explanation
Step-by-step explanation:
Solution:-
- We are told that a drug is administered to a patient at a rate of ( r ). The drug present in the patient at time t is Q. The drug also leaves the patient's body at a rate proportional to the amount of drug present at time t.
- We will set up the first order ODE for the rate of change of drug ( Q ) in the patient's body.
\(\frac{dQ}{dt} = ( in-flow ) - ( out-flow )\)
- We know that the rate of inflow is the rate at which the drug is administered that is ( r ) and the flow out is proportional to the amount currently present in the patient's body ( k*Q ). Where ( k ) is the constant of proportionality:
\(\frac{dQ}{dt} = ( r ) - ( k.Q )\)
- Express the ODE in the standard form:
\(\frac{dQ}{dt} + k*Q = r\)
- The integrating factor ( u ) for the above ODE would be:
\(u = e^\int^ {k} \, ^d^t = e^(^k^t^)\)
- Use the standard solution of ( Q ) using the integrating factor ( u ):
\(u*Q =\int {u.r} \, dt + c\\\\e^(^k^t^)*Q =\int {e^(^k^t^).r} \, dt + c\\\\e^(^k^t^)*Q =\frac{r}{k}*e^(^k^t^) + c\\\\Q = \frac{r}{k} + c*e^(^-^k^t^)\)
Where, c: the constant of integration.
- The initial value problem is such that there is no drug in the patient body initially. Hence, Q ( 0 ) = 0:
\(Q = \frac{r}{k} + c*(1) = 0\\\\c = -\frac{r}{k}\)
- The solution to the ODE is:
\(Q(t) = \frac{r}{k}* [ 1 - e^(^-^k^t^) ]\) .... Answer
- We can use any graphing calculator to plot the amount of drug ( Q ) in the patient body. The limiting value of the drug in the long-run ( t -> ∞ ) can be determined as follows:
Lim ( t -> ∞ ) [ Q ( t ) ] = Lim ( t -> ∞ ) [ \(\frac{r}{k}* [ 1 - \frac{1}{e^(^-^k^*^i^n^f^) } ]\)
Lim ( t -> ∞ ) [ Q ( t ) ] = \(\frac{r}{k}* [ 1 - 0 ] = \frac{r}{k}\)
- The long-run limiting value of drug in the body would be ( r / k ).
- If the rate of drug administrative rate is doubled then the amount of ( Q ) at any time t would be:
\(Q = \frac{2*r}{k} * [ 1 - e^(^-^k^t^) ]\)
- The multiplicative factor is 2.
- To reach half the limiting value ( 0.5* r / k ) the amount of time taken for the double rate ( 2r ) of administration of drug would be:
\(Q = \frac{2*r}{k} * [ 1 - e^(^-^k^t^) ] = \frac{r}{2*k} \\\\1 - e^(^-^k^t^) = \frac{1}{4} \\\\e^(^-^k^t^) = \frac{3}{4} \\\\kt = - Ln [ 0.75 ]\\\\t = \frac{- Ln [ 0.75 ]}{k}\)
- Similarly for the normal administration rate ( r ):
\(Q = \frac{r}{k}* [ 1 - e^(^-^k^t^) ] = \frac{r}{2k} \\\\1 - e^(^-^k^t^) = \frac{1}{2} \\\\e^(^-^k^t^) = \frac{1}{2} \\\\kt = - Ln ( 0.5 ) \\\\t = \frac{ - Ln( 0.5 )}{k}\)
- The multiplicative factor ( M ) of time taken to reach half the limiting value is as follows:
\(M = \frac{\frac{-Ln(0.75)}{k} }{\frac{-Ln(0.5)}{k} } = \frac{Ln ( 0.75 )} { Ln ( 0.5 ) }\)
- Similarly repeat the above calculation when the proportionality constant ( k ) is doubled.
What is the probability that outcome of rolling a standard six-sided cube will not be 3?
Answer:
5 out of 6, or 83%
Step-by-step explanation:
6 sides and since it will not land on 3. It will be 5/6 which equals 83%
Find the difference when we subtract 38,40,159 from the number formed by reversing its digits.
Answer:
5,670,279
Step-by-step explanation:
3,840,159 reversed is, 9,510,483 so, 9,510,483 - 3,840,159 = 5,670,279
PLEASE HELP AS SOON AS POSSIBLE
Answer:
B
Step-by-step explanation:
Yes, because for each input there is exactly one output. You can have two of the same x values but you cannot have 2 of the same y values. if you have two of the same y values, it is not a function as it doesn't pass the vertical line test.
For each equation, find the value of y when = -1.
In order to find the value of y when x = -1. in the given equations,
we put or substiture the value of x = 1 into the given equations
To solve for y in the first equation
\(\begin{gathered} y=-3x+4 \\ y=-3(-1)+4 \\ y=3+4 \\ y=7 \end{gathered}\)To solve for y in the second equation
\(\begin{gathered} y=\frac{3}{5}x-6 \\ y=\frac{3}{5}(-1)-6 \\ y=-\frac{3}{5}-6 \\ y=-6\frac{3}{5} \end{gathered}\)To solve for y in the third equation
\(\begin{gathered} 6x=4y-2 \\ 6(-1)=4y-2 \\ -6=4y-2 \\ 4y=-6+2 \\ 4y=-4 \\ y=-\frac{4}{4} \\ y=-1 \end{gathered}\)To solve for y in the fourth equation:
\(\begin{gathered} 5x+2y=7 \\ 5(-1)+2y=7 \\ -5+2y=7 \\ 2y=7+5 \\ 2y=12 \\ y=6 \end{gathered}\)Hexagon DEFGHI is translated on the coordinate plane below to create hexagon D′E′F′G′H′I′: Hexagon DEFGHI and Hexagon D prime E prime F prime G prime H prime I prime on the coordinate plane with ordered pairs at D 2, 5, at E 5, 5, at F 6, 3, at G 5, 1, at H 2, 1, at I 1, 3, at D prime negative 6, negative 2, at E prime negative 3, negative 2, at F prime negative 2, negative 4, at G prime negative 3, negative 6, at H prime negative 6, negative 6, at I prime negative 7, negative 4
Answer: To find the image of a figure under a translation, you need to apply the same translation to every point in the figure.
In this case, the image of hexagon DEFGHI is hexagon D′E′F′G′H′I′. To find the image of each point, you can apply the translation that maps point D to point D′.
For example, to find the image of point E under the translation, you can apply the same translation that maps point D to point D′:
Point D is located at (2, 5).
Point D′ is located at (-6, -2).
The translation that maps point D to point D′ is a translation 6 units to the left and 2 units down.
To find the image of point E under this translation, you can apply the same translation to point E:
Point E is located at (5, 5).
The image of point E is located at (5 - 6, 5 - 2) = (-1, 3).
You can follow the same process to find the images of the other points under the translation.
Alternatively, you can use the coordinates of point D and point D′ to find the translation vector that describes the translation. The translation vector is a displacement that describes the change in position of a point under the translation.
In this case, the translation vector is given by the displacement from point D to point D′:
Point D is located at (2, 5).
Point D′ is located at (-6, -2).
The translation vector is given by the displacement (-6 - 2, -2 - 5) = (-8, -7).
To find the image of any point under the translation, you can add the translation vector to the coordinates of the point. For example, to find the image of point E under the translation, you can add the translation vector to the coordinates of point E:
Point E is located at (5, 5).
The translation vector is (-8, -7).
The image of point E is located at (5 - 8, 5 - 7) = (-3, -2).
You can follow the same process to find the images of the other points under the translation.
Step-by-step explanation:
income from operations of $231,000. In addition, it received interest income of $23,100 and received dividend income of $29,700 from another corporation. Finally, it paid $11,000 of interest income to its bondholders and paid $45,000 of dividends to its common stockholders. The firm's federal tax rate is 21%. What is the firm's federal income tax? Do not round intermediate calculations. Round your answer to the nearest dollar.
The firm's federal income tax is $57,168.
To calculate the firm's federal income tax, we need to determine its taxable income first. Taxable income is calculated by subtracting deductions from the firm's total income.
In this case, the firm's total income consists of income from operations, interest income, and dividend income.
Total income:
Income from operations = $231,000
Interest income = $23,100
Dividend income = $29,700
Total income = $231,000 + $23,100 + $29,700 = $283,800
Next, we deduct expenses from the total income. In this case, the only relevant expense is the interest paid to bondholders:
Total expenses = Interest paid to bondholders = $11,000
Taxable income = Total income - Total expenses = $283,800 - $11,000 = $272,800
Now, we can calculate the federal income tax by applying the federal tax rate of 21% to the taxable income:
Federal income tax = Taxable income * Federal tax rate
Federal income tax = $272,800 * 0.21 = $57,168
Therefore, the firm's federal income tax is $57,168.
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Last year over 10,000 students took an entrance exam at a certain state university. Ivanna's score was at the 36th percentile. Aldo's score was at the 19th percentile.
Ivanna's score was at the 36th percentile, will be 99.64 and Aldo's score was at the 19th percentile, will be 99.81.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Last year, over 10,000 students took an entrance exam at a certain state university.
Let the maximum score be 100.
Ivanna's score was at the 36th percentile, will be
⇒ [(10,000 – 36) / 10,000] x 100
⇒ 99.64
Aldo's score was at the 19th percentile, will be
⇒ [(10,000 – 19) / 10,000] x 100
⇒ 99.81
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Order the numbers from least to greatest.
1.25, 11, -0.41, -0.41111..., -16, 3/7
Answer:
\( - 16 < - 0.41111... < -0.41 < \frac{3}{7} < 1.25 < 11\)
Step-by-step explanation:
\( \frac{3}{7} = 3 \div 7 = 0.428...\)
42 pieces of candy divided between three people. You put candy in three boxes. How many pieces of candy are there in per box?
Answer:
There are 14 pieces of candy in each box.
Step-by-step explanation:
42 divided by 3 equals 14.
Could I please have Brainliest.
Explain how the graph of f(x) is obtained
Answer:
there is no picture
Step-by-step explanation:
sorry without a picture i cant :(
Which number is equal to four and five sixths?
A. four and eighty three hundredths with the three repeating
B. six twenty ninths C. 4.8 D. 484percent
The number that is equal to four and five sixths is A. four and eighty three hundredths with the three repeating
What is a fraction?A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.
The number that is equal to 4 5/6 will be illustrated thus:
= 4 5/6
= 4 + 0.8333.
= 4.8333
In this vase, the 3 is repeating. Therefore, the correct option is A.
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HELPP I NEED AN ANSWER QUICK!Which graph represents the solution of the inequality below?-1.2x – 6.5x < 2.3x + 5
Answer is x ≥ -1/2 so the graph is option C.
Solve -2a -5 >3
which graph shows the solutions?