Answer:
He is wrong.
Step-by-step explanation:
\(3(x+3)-9\\\\3x+9-9\\\\\boxed{3x}\)
Hope this helps
HELP ASAP, FIRST ANSWER GETS BRAINLIEST,
Polygon JKLM is drawn with vertices J(−4, −4), K(−4, −6), L(−1, −6), M(−1, −4). Determine the image coordinates of K′ if the preimage is reflected across y = −7.
K′(−4, −4)
K′(−4, −5)
K′(−4, 6)
K′(−4, −8)
The image coordinates of K′ if the preimage is reflected across y = −7 is (-4, -8)
How to determine the image of the coordinates KBased on the given question, we have certain variables that can be utilized for our calculations.
K = (-4, -6)
First, find the equation of the reflection line
The reflection line is y = -7.
This can be expressed as
y = a = -7
The image of the reflection is then calculated as
K' = (x, -(y + 2|a|))
Replace the given or established values in the equation mentioned earlier, resulting in the following expression
K' = (-4, -(-6 + 2 * 7))
Evaluate
K' = (-4, -8)
Hence, the image coordinates of K′ are (-4, -8).
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Solve for x.
13x + 7 = 5x - 20
Ox=-33
ox=33
Ox=1
O x=-18
Please help
Will give brainly
hey friend i am from India.
Your correct answer is a) option
i hope you get your answer
thnx for asking
Help Quickly! A truck needs 7 gallons of fuel to travel 56 miles. Can the truck travel 48 miles with 6 gallons of fuel? Explain.
Giving brainliest
Yes, 7/56 and 6/48 are proportional because 7×48 = 56×6. Therefore, the correct answer is option B.
Given that, a truck needs 7 gallons of fuel to travel 56 miles.
The truck travel 48 miles with 6 gallons of fuel.
Here, the proportion is
7:56::6:48
We know that, the proportion is product of extremes = product of means
7×48 = 56×6
336 = 336
Therefore, the correct answer is option B.
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How do you find the range on a graph?
The range of a graph can be found using the values depicted on the y-axis.
According to the question,
We have the following information:
We have a graph and we need to know how do we find the range of that graph.
We know that the domain of a graph is the collection or in other words set of input values depicted on x -axis and the range of a graph is the set of possible output values portrayed on y-axis of the graph.
In noting down the range of a graph, we first list down the down value and then the up value or in other words we move from down to up in order to find the range of a graph.
Hence, the range of a graph can be found using the values depicted on the y-axis.
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What is the value of x in the equation 2x + 3y = 36, when y = 6? 0 8 O 9 O 27 O 36
Steps to solve:
2x + 3y = 36 when y = 6
~Substitute
2x + 3(6) = 36
~Simplify
2x + 18 = 36
~Subtract 18 to both sides
2x = 18
~Divide 2 to both sides
x = 9
Best of Luck!
Answer:
x = 9
Step-by-step explanation:
1. Substitute 6 for y
2x + 3(6) = 362. Multiply 3 * 6
2x + 18 = 363. Subtract 18 from both sides
2x = 184. Divide each side by 2
x = 9In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length of a motor vehicle trip in the United States was 9.72 miles with a margin or error of 0.22 miles.
With 95% confidence the authors of the report are claiming that the true average length of a motor vehicle trip in the United States is between ________and_________ miles.
The level of confidence for this estimate is ________%
Using the interpretation of the confidence interval, it is found that:
With 95% confidence the authors of the report are claiming that the true average length of a motor vehicle trip in the United States is between 9.50 miles and 9.94 miles.The level of confidence for this estimate is 95%.What is the interpretation of a x% confidence interval?It means that we are x% confident that the population parameter(mean/proportion/standard deviation) is between a and b.
Considering the mean and the standard error, the bounds of the interval are:
a = 9.72 - 0.22 = 9.50 miles.b = 9.72 + 0.22 = 9.94 miles.Hence:
With 95% confidence the authors of the report are claiming that the true average length of a motor vehicle trip in the United States is between 9.50 miles and 9.94 miles.The level of confidence for this estimate is 95%.More can be learned about confidence intervals at https://brainly.com/question/25890103
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find the polynomial M if 2x^2 - 1/3ax + by - M = 0
Polynomial M is 2(x - \((\frac{1}{12}a)^{2}\) - (1/72)\(a^{2}\) + by
To find the polynomial M, we need to rearrange the equation given to us. We can start by adding M to both sides of the equation to isolate the constant term. This gives us:
2\(x^{2}\) - (1/3)ax + by = M
Now, we have the polynomial M in terms of x, a, b, and y. However, this is not in its simplest form yet. We can simplify this further by factoring out the coefficient of x. This gives us:
2(\(x^{2}\) - (1/6)ax) + by = M
Now, we can complete the square inside the brackets to get a perfect square trinomial. This means taking half of the coefficient of x, squaring it, and adding it and subtracting it inside the brackets. This gives us:
2((x - \((\frac{1}{12}a)^{2}\) - (1/144)\(a^{2}\)) + by = M
Simplifying this further, we get:
2(x - \((\frac{1}{12}a)^{2}\) - (1/72\(a^{2}\) + by = M
Therefore, the polynomial M is given by:
M = 2(x - \((\frac{1}{12}a)^{2}\) - (1/72)\(a^{2}\) + by
This is the final answer for the polynomial M.
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Sphenathi and other matriculants plan to pass Bloemfontein at 07.25 to travel the above stated distance to Uptington. Determine (to the nearest km/h) the average speed at which they must travel to be in Uptington by 09:45.
Sphenathi and the other matriculants must travel at an average speed of approximately 107 km/h to reach Uptington by 09:45.
To determine the average speed at which Sphenathi and the other matriculants must travel to reach Uptington by 09:45, we need to calculate the time available for the journey and the distance between the two locations.
The time available is from 07:25 to 09:45, which is a total of 2 hours and 20 minutes. We need to convert this time to hours by dividing by 60:
2 hours + 20 minutes / 60 = 2.33 hours
Now, let's calculate the distance between Bloemfontein and Uptington. Suppose the distance is 'd' kilometers.
We can use the formula for average speed: average speed = distance / time
In this case, the average speed should be such that the distance divided by the time is equal to the average speed.
d / 2.33 = average speed
Now, let's assume that Sphenathi and the other matriculants must travel a distance of 250 kilometers to reach Uptington. We'll substitute this value into the equation:
250 / 2.33 = average speed
To find the average speed to the nearest km/h, we'll calculate the result:
average speed ≈ 107.3 km/h
Therefore, Sphenathi and the other matriculants must travel at an average speed of approximately 107 km/h to reach Uptington by 09:45.
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PLEASE ANSWER NUMBER 2
What quadrant is the point (-3, -3) in
Answer:
3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
brainliest pls
Diane, Sam, and Boris served a total of 54 orders Monday at the school cafeteria. Diane served 6 fewer orders than Sam. Boris served 2 times as
many orders as Sam. How many orders did they each serve?
Number of orders Diane served:
Number of orders Sam served:
Number of orders Boris served:
Answer:
Let's denote:
- The number of orders Diane served as `D`
- The number of orders Sam served as `S`
- The number of orders Boris served as `B`
From the problem, we know:
1. `D + S + B = 54` (the total number of orders they served)
2. `D = S - 6` (Diane served 6 fewer orders than Sam)
3. `B = 2S` (Boris served 2 times as many orders as Sam)
We can substitute equations 2 and 3 into equation 1 to solve for the variables:
Substitute `D` and `B` in equation 1:
`(S - 6) + S + 2S = 54`
Combine like terms:
`4S - 6 = 54`
Add 6 to both sides:
`4S = 60`
Divide by 4:
`S = 15`
Now that we know `S = 15`, we can find `D` and `B` by substituting `S` into equations 2 and 3:
`D = S - 6 = 15 - 6 = 9`
`B = 2S = 2 * 15 = 30`
So, Diane served 9 orders, Sam served 15 orders, and Boris served 30 orders.
use of pie charts in real life
Answer:
i agreee
Step-by-step explanation:
Question
From a point P on a level ground and directly west of a pole, the angle of elevation of the top of the pole is 45° and from point Q east of the pole, the angle of elevation of the top of the pole is 58°. If |PQ|= 10m, calculate, correct to 2 significant figures, the:
a) distance from P to the pole;
b) height of the pole.
a) The distance from point P to the pole is: 6.2 m
b) The height of the Pole is: 6.2 m
How to find the distance and height from angle of elevation?The triangle attached shows us the triangle formed as a result of the given word problem about angle of elevation and distance and height.
Now, we are given that:
The angle of elevation of the top of the pole = 45°
Angle of elevation of the top of the pole = 58°.
|PQ|= 10m
a) PR is distance from point P to the pole and using trigonometric ratios, gives us:
PR/sin 58 = 10/sin(180 - 58 - 45)
PR/sin 58 = 10/sin 77
PR = (10 * sin 58)/sin 77
PR = 8.7 m
b) P O can be calculated with trigonometric ratios as:
P O = PR * cos 45
P O = 8.7 * 0.7071
P O = 6.2 m
Now, the two sides of the isosceles triangle formed are equal and as such:
R O = P O
Thus, height of pole R O = 6.2 m
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What is the value of x?
Answer:
20Step-by-step explanation:
All of its side are equal so it is an equilateral triangle. And as we all know an Equilateral triangle has 3 equal angles.
So based on this we can solve it using algebra,
\(3x + 3x + 3x = 180\)
So using this we can find the value for x
\(9x = 180 \\ x = \frac{180}{9} \\ x = 20\)
This is your answer hope it helps :)
what is the product for 1.2×3.5 what is the product of 1.2 times 3.5
The answer to this problem is .
how many points of inflection will f(x) = 3x^4+2x^3-5x-12 have?
5
4
3
2
It is found that x = -1/3 is the point of inflection again for function f(x) = 3x⁴ + 2x³ - 5x - 12.
Since the second variation of the function f(x) = 3x⁴ + 2x³ - 5x - 12 and then solving for the values of x where the second derivative equals zero
f'(x) = 12x³ + 6x² - 5
f''(x) = 36x² + 12x
We should discover the solutions to the equation f"(x) = 0 for x to determine the locations of inflection:
36x² + 12x = 0
12x(3x + 1) = 0
If x = 0 or x = -1/3, the equation is true.
Here F"(x) > 0 demonstrates that the graph of f(x) is concave if x 1/3.
Concavity in the curve of f(x) at -1/3 x 0 shows that f"(x) 0.
When x is greater than zero, then f"(x) is greater than zero, showing that f(x graph) is concave up.
When x = 0, the graph's concavity does not change, making x = 0 not an inflection point =only x = -1/3
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luke wants to buy an ipod. determine the equivalent cash price if luke makes 18 monthly payments of $31.48 at an interest rate of 15.2% compounded monthly
Answer:
We can use the formula for the present value of an annuity:
PV = PMT x [(1 - (1 + r)^(-n)) / r]
where PV is the present value, PMT is the monthly payment, r is the monthly interest rate, and n is the number of payments.
Substituting the given values, we have:
PV = $31.48 x [(1 - (1 + 0.152/12)^(-18)) / (0.152/12)]
PV = $31.48 x [(1 - 0.5159) / 0.0127]
PV = $1,007.97
Therefore, the equivalent cash price of the iPod is $1,007.97.
A man gave 90000.00 to his two daughters Jane and Lydia, 75.00 was given to Lydia to pay her load. After sharing the money Lydia has twice as
much as Jane. How much did each received?
Jane received $30025 and Lydia received $60000. Let's assume the amount of money that Jane received as x; then Lydia's share of the money will be twice the share of Jane.
We are to find out the share of each person. Here is the solution in steps:Suppose Jane's share was x dollars, and Lydia's share was y dollars.
Given that the total amount given to the two daughters was $90000. Also, given that Lydia paid off her $75, hence she got $75 less than Jane.
Therefore, y = 2x - 75; this is because we are given that Lydia got twice the share of Jane, and also, she got $75 less than Jane. Hence, x + y = $90000, this is because the total sum of money shared is $90000.
Substituting y = 2x - 75 into x + y = $90000 gives x + (2x - 75) = $90000.
Simplifying, we have :3x = $90000 + 75 = $90075.
Dividing both sides by 3, we get:x = $30025. Hence, Jane's share is $30025 Lydia's share = 2x - 75 = 2($30025) - $75 = $60075 - $75 = $60000.
Therefore, Jane received $30025 and Lydia received $60000.
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Determine the validity of the converse and give a counterexample if the converse is not valid.
If it is sunny, then it is 80° Fahrenheit. The converse is valid.
If it is 80° Fahrenheit, then it is sunny. The converse is valid.
If it is not sunny, then it is not 80° Fahrenheit. The converse is invalid; a counterexample is a day that is not 80° Fahrenheit and not sunny.
If it is 80° Fahrenheit, then it is sunny; The converse is invalid; a counterexample is a day that is 80° and cloudy.
Your analysis is correct. Here's a summary:
If it is sunny, then it is 80° Fahrenheit. (Original statement)
Converse: If it is 80° Fahrenheit, then it is sunny. (Valid)
If it is 80° Fahrenheit, then it is sunny. (Original statement)
Converse: If it is sunny, then it is 80° Fahrenheit. (Valid)
If it is not sunny, then it is not 80° Fahrenheit. (Original statement)
Converse: If it is not 80° Fahrenheit, then it is not sunny. (Invalid)
Counterexample: A day that is not 80° Fahrenheit and not sunny (e.g., 70° and cloudy).
If it is 80° Fahrenheit, then it is sunny. (Original statement)
Converse: If it is sunny, then it is 80° Fahrenheit. (Invalid)
Counterexample: A day that is 80° Fahrenheit and cloudy.
In cases 1 and 2, the original statements and their converses are valid because the relationship between "sunny" and "80° Fahrenheit" holds in both directions. However, in cases 3 and 4, the converses are invalid because there are counterexamples where the second part of the statement (either "not 80° Fahrenheit" or "cloudy") does not necessarily imply the first part ("not sunny" or "80° Fahrenheit").
Aleks topic please help
Answer:
Item price now= 3.95
Step-by-step explanation:
To find out the price now, we will subtract 79 (original price) by 95% of 75. That will equal the discounted price. Finding the percentage of anything, we can use the formula, Total amount•percentage/100. The total amount is 79, and the percentage is 95. 79•95=7505, 7505/100=75.05. Now, 95% of 79 is 75.05, 79-75.05=3.95. $3.95 is the price now of the item. Though, I am unsure what a ALEKS calculator is. Have a nuce time, and joyful day
Calculate the average rate of change for the function f(x) = 3x4 − 2x3 − 5x2 + x + 5, from x = −1 to x = 1.
a
−5
b
−1
c
1
d
5
Average rate of change for the function f(x) = 3x⁴ -2x³ -5x² +x +5 from
x =-1 to x=1 is equal to -1.
As given in the question,
Given function :
f(x) = 3x⁴ -2x³ -5x² +x +5
Formula for average rate of change for (a, f(a)) and (b, f(b))
[f(b) -f(a)] / (b-a)
Substitute the value of a=-1 and b=1
f(-1)=3(-1)⁴ -2(-1)³-5(-1)² +(-1) +5
= 3+2-5-1+5
=4
f(1)=3(1)⁴ -2(1)³-5(1)² +(1) +5
= 3-2-5+1+5
= 2
Average rate of change = (2-4)/(1-(-1))
= -2/2
=-1
Therefore, average rate of change for the function f(x) = 3x⁴ -2x³ -5x² +x +5 from x =-1 to x=1 is equal to -1.
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What's the first term of the expansion of (x+y)9?
draw a square that is not a rhombus
Answer:
It is impossible
Step-by-step explanation:
A square has 4 right angles, a rhombus doesn't have that property therefore, it is impossible
In a class of 28 students, 17 play an instrument and 6 play a sport. There are 4 students who play an instrument and also play a sport. What is the probability that a student chosen randomly from the class plays a sport and an instrument?
Answer:
Step-by-step explanation:
P=4/28=1/7
Answer:
14.3% or 1/7
Step-by-step explanation:
4 / 28
4 students who play a sport and instrument divided by 28 total students
Select all solutions to M•M•M=729
The solution to the equation given by M * M * M = 729 is 9
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables using mathematical operations. An equation can be linear, quadratic, cubic and so on, depending on the degree of the variable.
Given the equation:
M.M.M = 729
This gives:
M * M * M = 729
M³ = 729
Taking the cube root of both sides:
∛M³ = ∛729
M = 9
The solution to the equation is 9
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The product of two fractions is 2/1/2 if one of the fraction is 7/1/2 find the other
Go step by step to reduce the radical.
Square Root 200
Answer:
10 root 2
Step-by-step explanation:
root 200 = root 2 × root 100 = 10 root 2
Find the measurements of the missing side. Be sure to simplify your answer.
Answer:
the answer is 13 for this problem
Answer:
13
Step-by-step explanation:
\({a}^{2} + {b}^{2} = {c}^{2} \)
\( {5}^{2} + {12}^{2} = {c}^{2} \)
\( {c}^{2} = 169\)
\(c = \sqrt{169} \)
\(c = 13\)
It takes Daphne 25 minutes to assemble a model plane. During her work
minutes for lunch and one 15 minute break. Which inequality could Daphne use to determine the number
of model planes, p, she can assemble in her 8 hour work day?
A. 25p – 45 > 8
B. 25p + 45 2 8
C. 25p – 45 < 480
D. 25p + 45 < 480
Answer: 25p+45>= 8
Step-by-step explanation:
a car is traveling on a road that makes a 12 degree angle with the ground. find the height of the car vertically once it reaches a horizontal distance of 102 meters round your answer to the nearest tenth
I'm reading your question
___________________________
Trigonometric relationship
_____________________________-
tan (12º) = side opposite/ side adjacent
Side opposite = tan (12º) * side adjancent
Side opposite = tan (12º)* 102
Side opposite = 21. 7 m
________________________
Answer
21. 7 m