Answer: It’s 113 cm3
Step-by-step explanation:
I GUESSED ♀️
ASAPPP How do I explain what's the difference in the meaning of the "+1" in the following equations: f(x)=2x^2+5x+1. and g(x)=2(x+5)^2+1 ??????
Answer:
The +1 in f(x) is the y intercept
The +1 in g(x) is the y coordinate of the vertex
Step-by-step explanation:
For f(x), plugging in x = 0 leads to
f(x) = 2x^2+5x+1
f(0) = 2(0)^2+5(0)+1
f(0) = 1
Showing that (0,1) is the y intercept of f(x).
The same is not true for g(x)
g(x) = 2(x+5)^2+1
g(0) = 2(0+5)^2+1
g(0) = 51
-------------------------------
The +1 for g(x) represents the y coordinate of the vertex. Recall that vertex form in general is
y = a(x-h)^2+k
with (h,k) being the vertex. This means we can quickly spot the vertex for g(x) without having to graph. The same cannot be said for f(x) as we need to complete the square to get f(x) into vertex form. Currently, f(x) is in standard form.
Type the correct answer in each box.
x f(x)
-1
1
2
3
3
6
5
7
7 8
The values in the table define the function f (x). The value of f-¹ (3) is
Reset
Next
, and the value of f¹ (8) is
The values of the inverse functions are f-¹ (3) = -1 and f-¹ (8) = 7
How to determine the values of the inverse functionsFrom the question, we have the following parameters that can be used in our computation:
x f(x)
-1 3
1 6
2 5
3 7
7 8
Using the above as a guide, we have the following:
f-¹ (x) means that we calculate the value of x from the table when y = x in the function notation
So, we have
f-¹ (3) = -1 and f-¹ (8) = 7
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The walls are rectangles with a height of 6 feet. A pint of paint covers about 50 square feet. How much paint do they need to paint the inside walls? Explain.
Answer:
300
Step-by-step explanation:
5!, called 5 _______ is the product of all positive integers from _______ down through _______. by definition, 0!_______.
Answer:
120
Step-by-step explanation:
5!, called 5 factorial is the product of all positive intergers from 5 down though 1. by definition, 0! is 0.
Factorials are basically the number times itself-1 the 2 the 3 until it times it by itself-(itself-1). n!=n*(n-1)*n(n-2).....*n-(n-1).
For example 2!=2*1=2 and 6!=6*5*4*3*2*1=720
keep in mind that I am not an expert so the blanks I filled in might be wrong and the explanation might have errors
5!, called "5 factorial," is the product of all positive integers from 5 down through 1. By definition, 0! is equal to 1.
Factorial is a mathematical operation denoted by an exclamation mark (!). It represents the product of all positive integers from a given number down to 1. In the case of 5!, it is calculated as 5 × 4 × 3 × 2 × 1, resulting in the value of 120.
The exclamation mark notation allows us to represent the factorial of a number concisely. For example, 5! represents the factorial of 5. It is important to note that 0! is defined to be equal to 1. This is a special case in factorial calculations. While it may seem counterintuitive, it is defined this way to maintain consistency and enable certain mathematical calculations and formulas.
Therefore, 5! is the product of all positive integers from 5 down through 1, equaling 120, and 0! is defined to be 1.
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the weight of bill's pack as he sets off on a backpacking trip is 48.3 lb. describe the type of variable and corresponding level of measurement (more than one answer may apply)
The weight of Bill's pack is a quantitative variable, so the weight can take on any numerical value within a certain range (in this case, likely between 0 and 100 lbs or so).
The type of variable for the weight of Bill's pack is a continuous variable, and the corresponding level of measurement is the ratio level of measurement.
Continuous variable: A continuous variable is a variable that can take on any value within a given range. In this case, the weight of Bill's pack can take on any value within a certain range (e.g., from 0 lb to 100 lb or more), making it a continuous variable.
Ratio level of measurement: The ratio level of measurement has a true zero point and allows for meaningful comparisons and calculations, such as multiplication and division. Since the weight of Bill's pack has a true zero point (0 lb) and allows for meaningful comparisons (e.g., one pack can be twice as heavy as another), it falls under the ratio level of measurement.
Hence, The weight of Bill's pack (48.3 lb) is a continuous variable, and its corresponding level of measurement is the ratio level of measurement.
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22 ml of rboh is titrated with 35 ml of 0.9 m hf. what is the concentration of the base?
22 ml of rboh is titrated with 35 ml of 0.9 m hf. The concentration of the base is 1.43M.
What is titration?Titration is a method of chemical analysis in which the amount of a sample's ingredient is determined by adding an exact known amount of a different substance to the measured sample in which the desired constituent interacts in a specific, known proportion. Titrating reagent, or titrant, is often added to a standard solution (i.e., a solution of known concentration) using a burette, which is essentially a long, graduated measurement tube with a stopcock and a delivery tube at its bottom end. When the equivalence point is achieved, the addition is terminated.
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kevin's age is 5 times kelly's age. together, their age is 84. how old is kevin?
Answer:
18
Step-by-step explanation
:
Two students are using estimation to determine reasonable solutions to the expression 89.1 times 9.3. Katie uses the expression 90 times 10. Amaya uses the expression 89 times 9. Which is the best comparison of the estimates and the actual product?
Which set of population data is the least dispersed from its mean?
O 2, 3, 2,9
O 4, 0, 4,0
O 6, 2, 2, 2
O 9, 3, 5,3
Answer: (C)
6,2,2,2
Step-by-step explanation:
A mean is an arithmetic average of a set of observations. The set of population data that is the least dispersed from its mean is {6, 2, 2, 2}.
What is Mean?
A mean is an arithmetic average of a set of observations. it is given by the formula,
\(\rm Mean=\dfrac{\text{Sum of all obervation}}{\text{Number of observation}}\)
To solve the problem we will find the mean of each population set and then add the difference between the mean and each data point.
A.)
\(Mean = \dfrac{2+3+2+9}{4} = \dfrac{16}{4} =4\)
Dispersion of each point from the mean,
\(\rm |Mean - data\ point|\\|4-2|=2\\|4-3|=1\\|4-2|=2\\|4-9|=5\)
Thus, the dispersion of the population from the means is 10 (2+1+2+5).
B.)
\(Mean = \dfrac{4+0+4+0}{4} = \dfrac{8}{4} =2\)
Dispersion of each point from the mean,
\(\rm |Mean - data\ point|\\|2-4|=2\\|2-0|=2\\|2-4|=2\\|2-0|=2\)
Thus, the dispersion of the population from the means is 8 (2+2+2+2).
C.)
\(Mean = \dfrac{6+2+2+2}{4} = \dfrac{12}{4} =3\)
Dispersion of each point from the mean,
\(\rm |Mean - data\ point|\\|3-6|=3\\|3-2|=1\\|3-2|=1\\|3-2|=1\)
Thus, the dispersion of the population from the means is 6 (3+1+1+1).
D.)
\(Mean = \dfrac{9+3+5+3}{4} = \dfrac{20}{4} =5\)
Dispersion of each point from the mean,
\(\rm |Mean - data\ point|\\|5-9|=4\\|5-3|=2\\|5-5|=0\\|5-3|=2\)
Thus, the dispersion of the population from the means is 8 (4+2+0+2).
Hence, the set of population data that is the least dispersed from its mean is {6, 2, 2, 2}.
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What is the value of x?
A 12
B √80
Answer:
Step-by-step explanation:
A=12
The equation y = 6.75x models the cost, in dollars, to purchase x pounds of steak at grocery store 1. this table shows the cost to buy different weights of steak at grocery store 2.
2.janet can make 4/5 of a necklace in 20 minutes. at this rate, how many necklaces, to the nearest tenth of a necklace, can janet make in 1 hour?
1.) The cost of steak at grocery store 1 is $0.75 less per pound than at grocery store 2.
2.) The number of necklace Janet can make in 1 hour = 2.4 to the nearest tenth.
Calculation of equations and amount of necklaceIn store 2 the cost of 2 pounds = $1.5But the cost of a pound weight= 1.5/2 = $0.75
Therefore, the cost of steak at grocery store 1 is $0.75 less per pound than at grocery store 2.
The number of necklace made in 20 minutes= 4/5
The number of necklace made in 60mins(1hr) = X
Make X the subject of formula,
X= (60* 4/5) ÷ 20
X= 48/20
X= 2.4 to the nearest tenth.
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what is the equation of the line through 0,0 and 8,4?
Answer:
y = (1/2)x
Step-by-step explanation:
Lets look for an equation of the form y = mx + b, where m is the slope and b is the y-intercept (the value of y when x = zero). We can find the slope by calculating the Rise/Run between the two given points:
Going from (0,0) to (8,4):
Rise = (4-0) = 4
Run = (8-0) = 8
Slope = Rise/Run (4/8) or (1/2)
The equation becomes y = (1/2)x + b
We need a value of b that forces the line through both points. The point (0,0) actually tells us that b is 0, since b is the value of y when x=0. If we weren't ask lucky to get a point where x is zero, we could cacalute b by putting either point in the above equation and solving for b:
y = (1/2)x + b
4 = (1/2)*(8) + b for (8,4)
b = 0
The equation is y = (1/2)x
See the attached graph.
A rectangle is constructed on a semicircle so that the length equals the diameter. The rectangle is 3 times as long as it is wide. The total area of the figure is 750 inches squared. Find the approximate dimensions of the rectangle.
A rectangle is constructed on a semicircle so that the length equals the diameter. The width of the rectangle is approximately 10.65 inches.
What are the approximate dimensions of the rectangle.?Generally, Let the width of the rectangle be x. Then the length of the rectangle is 3x.
The diameter of the semicircle is also the length of the rectangle, so it is 3x.
The area of the rectangle is x*(3x) = 3x^2. The area of the semicircle is (1/2)πr^2, where r is the radius of the semicircle. Since the diameter of the semicircle is 3x, the radius is (3x)/2. The area of the semicircle is (1/2)π((3x)/2)^2 = (9/8)πx^2.
The total area of the figure is the sum of the area of the rectangle and the area of the semicircle. We can set up the equation:
3x^2 + (9/8)πx^2 = 750
(21/8)πx^2 = 750
x^2 = 750/(21/8)*π
x = √(750/(21/8)*π)
To find the approximate dimensions of the rectangle, we can use the fact that pi is approximately 3.14. This gives us:
x = √(750/(21/8)*3.14)
= √(750/6.71)
= √(112.64)
= approximately 10.65 inches.
The width of the rectangle is approximately 10.65 inches. The length of the rectangle is 3 times the width, so it is approximately 31.95 inches.
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A TV that usually sells for $192.15 is on sale for 20% off. If sales tax on the TV is 6%, what is the price of the TV, including tax?
Answer:
$162.94
Step-by-step explanation:
Because 20% off of 192.15 = $162.94 and
$153.72 + (6.0%) $9.22 = $162.94
assume that you want to test the claim that the paired sample data come from a population for which the mean difference is Ud=0. compute the value of the test statistic.
x 7 8 4 5 8
y 10 2 9 5 7
We first calculate the difference between each pair (y-x) which gives 3, -6, 5, 0, -1. We then calculate the sample mean of these differences which is 1.02.
To compute the test statistic, we need to calculate the standard error of the mean difference, which is the standard deviation of the sample differences divided by the square root of the sample size. Using the sample differences, we can calculate the sample standard deviation to be approximately 3.24. With a sample size of 5, the standard error of the mean difference is approximately 1.45.
The test statistic is calculated as the sample mean difference minus the hypothesized population mean difference divided by the standard error of the mean difference. Substituting the values, we get (1.02 - 0) / 1.45 = 0.70. This is our test statistic.
The interpretation of this result depends on the significance level chosen for the test. If we use a significance level of 0.05, which is a commonly used value, we compare the test statistic to the critical value from the t-distribution with four degrees of freedom (one less than the sample size). Using a t-table, we find the critical value to be approximately 2.78. Since our test statistic of 0.70 is less than the critical value, we fail to reject the null hypothesis that the mean difference is 0.
In summary, to test the claim that the paired sample data come from a population for which the mean difference is Ud=0, we calculated the test statistic using the provided data. The test statistic was 0.70, and using a significance level of 0.05 and a t-distribution with four degrees of freedom, we failed to reject the null hypothesis that the mean difference is 0. This suggests that there is not enough evidence to conclude that the mean difference is different from 0.
In simpler terms, we used the given data to see if there is enough evidence to suggest that the average difference between the paired samples is not 0. By calculating the test statistic and comparing it to a critical value, we determined that we cannot reject the null hypothesis that the mean difference is 0. This means that there is not enough evidence to conclude that the mean difference is different from 0, and we cannot say that there is a significant difference between the paired samples.
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Alex has a prism with a base that has 13 sides. How many faces
does the prism have?
A prism has two congruent parallel bases and the number of sides on the base determine the number of faces. A base with 13 sides is a 13-gon, so the prism has 2 faces from the 13-gon bases and 13 faces from the rectangular sides. In total the prism has 2+13 = 15 faces.
What is prism?A prism is a three-dimensional geometric shape that has two congruent and parallel bases, and a set of rectangular faces connecting the bases. The bases are typically polygonal in shape, and the rectangular faces are perpendicular to the bases. The distance between the bases is known as the height of the prism. Prisms are named based on the shape of their bases, for example, a triangular prism has triangular bases, and a rectangular prism has rectangular bases. There are different types of prisms like regular prism, triangular prism, pentagonal prism, hexagonal prism etc.
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Help please!!!!!! Thank you
Answer:
1/4
Step-by-step explanation:
Well see how far each points are from each other.
Start at the red triangle and go up 1, go to the right 4.
Thus,
the rise/run is 1/4.
Hope this helps :)
Answer:
1/4
Step-by-step explanation:
To find the rise/run, you first need to pick two points from the line. You can pick whichever points you want, and you will get the right answer. I will pick (-8, -3) and (8, 1).
Divide the difference of the y's by the difference of the x's.
-3 - 1 = -4
-8 - 8 = -16
-4/-16 = 1/4
The rise/run is 1/4.
So if you buy 3 combo meals that each come with 2 tacos and one drink, how much do you have altogether?
Answer:
6 tacos and 3 drinks
Step-by-step explanation:
taco = 3x
drink = y
= 3(3x+y)
= 6x+3y
PLEASE GEOMETRY HELP WILL MARK BRAINLIEST!!!
Answer:
Step-by-step explanation:
⅔n - 5 = ⅓n + 7
⅓n = 12
n = 36
Find the area of a regular octagon with
a side length of 12 cm. Round to the
nearest tenth.
12 cm
[ ? ] cm2
Answer:
A= 695.3cm²
Step-by-step explanation:
We khow that the area of anctagon is : A= 2(1+\(\sqrt{2}\))*a² with a the side so A= 2(1+√2)*a² = 695.29= 695.3 cm²Help? :p
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pls help me with this question
Q22
Q23
(a, b) = (1, 2) and (c, d) = (6, -6)
(a, b) = (2, 0) and (c, d) = (5, -4)
(a, b) = (3, -2) and (c, d) = (4, -2).
What is the explanation for the above?1) Note that since the adjacent angles in a parallelogram sum up to 180°, thus,
∠BDE = 180 -115 = 65°
∠DEC = 180 - 60 = 120°
Also:
∠BED = 60° (Angles on a straight line.)
Since we know ∠BDE and ∠BED, thus:
∠DBE = 180 - ∠BDE - ∠BED (Sum of Angles in a triangle)
∠DBE = 180 - 65 - 60
Thus:
∠DBE = x = 55°
2 )We know that the midpoint of the line segment joining (a, b) to (c, d) is (3.5, -2).
The midpoint formula is:
Midpoint = ((a+c)/2, (b+d)/2)
We can use this formula to create two equations based on the coordinates given:
3.5 = (a+c)/2 ---- (1)
-2 = (b+d)/2 ---- (2)
We have two equations with two variables (a, b, c, d). We can solve for one of the variables and then use that solution to find the other variables.
Let's solve equation (1) for c:
7 = a + c
c = 7 - a
Substitute c = 7 - a into equation (2):
-2 = (b+d)/2
-4 = b + d
d = -4 - b
So, we have found two expressions for c and d in terms of a and b:
c = 7 - a
d = -4 - b
Therefore, the possible coordinates for (a, b) and (c, d) are:
(a, b) = (1, 2) and (c, d) = (6, -6)
(a, b) = (2, 0) and (c, d) = (5, -4)
(a, b) = (3, -2) and (c, d) = (4, -2)
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Find the rectangular coordinates of the point with the polar coordinates(-5,5pi/3)
The point with polar coordinates (-5, 5π/3) can be converted to rectangular coordinates using the formulas:
x = r * cos(θ)
y = r * sin(θ)
where r represents the distance from the origin to the point and θ is the angle measured counterclockwise from the positive x-axis.
In this case, the distance from the origin is -5 and the angle is 5π/3. Plugging these values into the formulas, we get:
x = -5 * cos(5π/3)
y = -5 * sin(5π/3)
The rectangular coordinates of the point are (-5/2, -5√3/2).
To convert polar coordinates to rectangular coordinates, we use the formulas x = r * cos(θ) and y = r * sin(θ), where r represents the distance from the origin to the point and θ is the angle measured counterclockwise from the positive x-axis.
In this case, the distance from the origin is -5, indicating that the point lies 5 units away from the origin in the opposite direction. The angle is 5π/3, which corresponds to a counterclockwise rotation of 5π/3 radians from the positive x-axis.
By plugging these values into the formulas, we can calculate the rectangular coordinates as follows:
x = -5 * cos(5π/3)
y = -5 * sin(5π/3)
Evaluating the trigonometric functions, we find that cos(5π/3) = -1/2 and sin(5π/3) = -√3/2.
Therefore, the rectangular coordinates of the point (-5, 5π/3) are (-5/2, -5√3/2).
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3.
Which equations have infinitely many solutions?
Select all that apply.
A.
2x = 3x - x
B.
3x = 3(2 + x)
C.
4x = x + 4
D.
-2x = -x - 2
E.
x - 1 = 2x - (x + 1)
Answer:
A. 2x = 3x - x
E. x - 1 = 2x - (x + 1)
Step-by-step explanation:
To find out which linear equations have an infinitely many solutions, we must solve for the value of x:
A. 2x = 3x - x
Subtract 2x from both sides:
2x - 2x = 3x - x - 2x
0 = 3x - 3x
0 = 0 This is a true statement, which implies that any values of x will satisfy the given equation. Therefore, this linear equation has infinitely many solutions.
B. 3x = 3(2 + x)
Distribute 3 into (2 + x):
3x = 6 + 3x
Subtract 3x from both sides:
3x - 3x = 6 + 3x - 3x
0 = 6 This is a false statement. Therefore, there is no solution.
C. 4x = x + 4
Subtract x from both sides:
4x - x = x - x + 4
3x = 4
Divide both sides by 3:
\(\frac{3x}{3} = \frac{4}{3}\)
x = 4/3 This is the solution to the given equation.
D. -2x = -x - 2
Add x to both sides:
-2x + x = -x + x - 2
-x = -2
Divide both sides by -1:
\(\frac{-1x}{-1} = \frac{-2}{-1}\)
x = 2 This is the solution to the given equation.
E. x - 1 = 2x - (x + 1)
Distribute -1 into (x + 1):
x - 1 = 2x - x - 1
Add 1 to both sides:
x - 1 + 1 = 2x - x - 1 + 1
x = x
Subtract x from both sides:
x - x = x - x
0 = 0 This is a true statement, which implies that any values of x will satisfy the given equation. Therefore, this linear equation has infinitely many solutions.
Given these calculations, we can see that options A and E have infinitely many solutions.
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HELP what is the inverse of the conditional statement? If a polygon has five angles, then it is a pentagon.
a) if a polygon is a pentagon, then it has five angles
b) if a polygon is not a pentagon then it does not have five angles
c) if a polygon does not have five angles, then it is not a pentagon
d) if a polygon has five angles, then it is not a pentagon
Answer:
the answer is B. The inverse f the given statement is
"If a polygon is not a Pentagon, then it does not have five sides".
Step-by-step explanation:
the weight of a certain material varies directly with the surface area of that material. if 6 6 square feet weighs half a pound, how much will 10 10 square feet weigh?
If 6 square feet weighs half a pound, the 10 square feet weigh is 5/6 pounds.
The weight of a certain material varies directly with the surface area of that material.
So if surface area is A and weight of a certain material is w.
Then A ∝ w
After removing the varies the constant k is added.
A = kw
From the question A = 6 and w = 1/2 pounds.
So 6 = k × 1/2
Multiply by 2 on both side we get
k = 12
Since A = 10
So 10 = 12 × w
Divide by 12 on both side, we get
w = 10/12
On simplifying
w = 5/6 pounds
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Try to form a triangle by dragging points a and d, is it possible to form a triangle with side lengths 1, 5, and 3 units
Answer:
It is not possible.
Step-by-step explanation:
The triangle inequality theorem states that any 2 sides of a triangle must be greater than or equal to the other side. If you add 3 and 1, you get 4, and that is less than 5, so the triangle cannot exist.
Answer:
1. No
2. Yes
3. No
4. Yes
5. Yes
Step-by-step explanation:
These are the answers for edge 2021
A profit-maximizing firm decides to shut-down production in the short-run. Its total fixed cost of production is $100, i.e. TFC = $100. Which of the following statements is true? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. If the firm produced, the firm's total variable cost would have been higher than $100. b If the firm produced, the firm's losses would have been higher than $100. C If the firm produced, the firm's total variable cost must be lower than $100. d If the firm produced, the firm's revenues would have been lower than $100.
The correct statement is b. If the firm produced, the firm's losses would have been higher than $100. The firm will choose to shut down production if the market price is lower than $100 because it would not be able to cover its total cost of production.
In the short run, a profit-maximizing firm will shut down production if the total revenue it can earn from selling its output is not enough to cover its variable costs. In this case, since the total fixed cost of production is $100, the firm will shut down production if its total variable cost is higher than $100. If the firm produced, it would have to pay its variable costs, which would be in addition to the fixed cost of $100.
The decision to shut down production in the short run is based on the concept of the shutdown point, which is the output level at which a firm's total revenue is just enough to cover its variable costs. If a firm cannot cover its variable costs at a given output level, it will choose to shut down production. The shutdown point is determined by comparing the marginal revenue (MR) of the firm's output with its marginal cost (MC). If MR is lower than MC, the firm will reduce its output level until MR equals MC, which is the profit-maximizing level of output. In this case, the firm has a fixed cost of $100, which is a sunk cost that cannot be recovered in the short run. The only decision the firm can make is whether to continue producing or to shut down production. If the firm decides to produce, it will have to pay its variable costs, which are costs that vary with the level of output. The firm's total cost of production will be the sum of its fixed cost and its variable cost. If the market price is lower than the total cost of production, the firm will incur losses.
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y = 3x - 3| + 1
what is the domain and range?
simplify
(8p^6)^1/3
simplifyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
Answer:
\(2p^2\)
Step-by-step explanation:
Step 1: Apply the exponentiation property:
\((8p^6)^\frac{1}{3} = 8^\frac{1}{3} * (p^6)^\frac{1}{3}\)
Step 2: Simplify the cube root of 8:
The cube root of 8 is 2:
\(8^\frac{1}{3} =2\)
Step 3: Simplify the cube root of \((p^6)\):
The cube root of \((p^6)\) is \(p^\frac{6}{3} =p^2\)
Step 4: Combine the simplified terms:
\(2 * p^2\)
So, the simplified expression is \(2p^2\).