Joey forgot to record approximately 9,412 views after the second month.
How to explain the regressionUsing a regression calculator, we find that the equation that best models the data is:
y = 4298.76x + 809.72
The coefficient of determination (R-squared value) for this regression is 0.994, indicating a strong linear relationship between the number of months and the total number of views.
We need to find the value of y for x = 2, using the regression equation we found in part a:
y = 4298.76(2) + 809.72
y ≈ 9412.24
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determine whether the planes are parallel, perpendicular, or neither. 15x − 3y 12z = 2, 2y = 10x 8z
The given equations of planes are: 15x - 3y + 12z = 2 & 2y = 10x - 8z
To determine whether these planes are parallel, perpendicular or neither, we need to compare the normal vectors of the planes. The normal vector of a plane is given by the coefficients of x, y and z in the equation of the plane.
The normal vector of the first plane (1) is [15, -3, 12] and the normal vector of the second plane (2) is [10, 2, -8/2] = [10, 2, -4].
Now, to check if the planes are parallel or perpendicular, we can take the dot product of the normal vectors. If the dot product is 0, then the planes are perpendicular, and if it is non-zero, then the planes are parallel.
The dot product of the normal vectors of the given planes is:
[15, -3, 12] · [10, 2, -4] = (15)(10) + (-3)(2) + (12)(-4) = 0
Since the dot product is zero, the planes are perpendicular to each other.
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Your friend says the solution to 6x + 19x - 3 = 5(5x + 6) is x = 33. Solve 6x + 19x-3 = 5(5x + 6). What was your friend's likely error?
Answer: Forgot to divide at the end
Step-by-step explanation:
To figure out your friend's error, solve the equation yourself.
Distribute the 5 to get 25x+30Combine like terms in the first equation toget 25x-3=25x+30Add 3 to the other side.When we do this, we realize adding 3 would make it 33. This shows that the friend likely forgot to divide by 25 to completely isolate x, and stopped at that step.
Which fraction shows a correct way to set up the slope formula for the line that passes through the points (-2, 3) and (4, -1)? A. B. C. D
Hence, \(\frac{-1-3}{4-(-2)}\) is the required fraction.
We know that the slope of a line is defined as the change in y coordinate with respect to the change in x coordinate of that line.
To set up the slope formula for the line that passes through the points (-2, 3) and (4, -1), we can use the formula of the slope
i.e. \(m=\frac{y_2-y_1}{x_2-x_1}\)
m is the slope of the line, and (x₁, y₁) and (x₂, y₂) are the coordinates of the two points on the line.
So, x₁ = -2
y₁ = 3
x₂ = 4
y₂ = -1
Substituting the values in the formula
\(m = \frac{-1-3}{4-(-2)}\)
Hence, \(\frac{-1-3}{4-(-2)}\) is the required fraction.
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Find the slope of:(12,-2) and (4, -6)
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightAlgebra I:\((x ,\ y)\)Slope Formula:We are given the coordinates \((12 ,\ -2)\) and \((4 ,\ -6)\). Recall from our definition that they are in the format of \((x ,\ y)\). Therefore, we can set \(x_1 = 12 ,\ y_1 = -2 ,\ x_2 = 4 ,\ y_2 = -6\).
Step 2: Work[Slope Formula] Substitute in given coordinates:∴ the slope m of the coordinates \((12 ,\ -2)\) and \((4 ,\ -6)\) is equal to \(\displaystyle \frac{1}{2}\), or 0.5.
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___
Topic: Algebra I
Unit: Linear Equations
a batch of 140 semiconductor chips is inspected by choosing a sample of 5 chips without replacement. assume 10 of the chips do not conform to customer requirements. how many different samples are possible?
A batch of 140 semiconductor chips is inspected by choosing a sample of 5 chips without replacement and the different samples possible are 416,965,528.
A batch of 140 semiconductor chips is inspected by choosing a sample of 5 chips without replacement.
Assume 10 of the chips do not conform to customer requirements
The different number of samples can be calculated by combinations and permutations.
Given n = 140 semiconductor chips
r = 5 chips without replacement
The number of different samples can be calculated using combinations formulae. The batch of 140 semiconductor chips is inspected by choosing a sample of 5 chips without replacement.
n = 140
r = 5
10 of the chips do not conform to customer requirements.
order is not important, whether chip selected last or at the first, by using the combinations formulae , we get
n! / (r!)(n! - r!)
140! / (5!) (140! - 5!)
140! / (5!) (135!)
So, the number of different samples possible are 416,965,528.
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how to write 1/2 with a denominator of 10
Answer:
The answer is 5/10 multiply 1/2 by 5
Please help due today
Answer:
it is the 3rd one
Step-by-step explanation:
Answer:
it's e/g
Step-by-step explanation:
adjacent/hypotenuse
the third option, as stated by someone else, is hypotenuse/adjacent, makig it incorrect
Aim receive 18 dollar from hi father in a week. The ratio of the amount of money he pend to the amount of money
As per the given Ratio difference between the amount of money spent and the amount of money saved in a week is $2.
In mathematics, what is a ratio?A ratio is an ordered pair of numbers a and b, denoted by the symbol a / b, where b does not equal zero. A proportion is an equation that sets two ratios equal to each other.
What exactly is the ratio formula?The ratio formula can be used to represent a ratio as a fraction. For any two quantities, say a and b, the ratio formula is a:b = a/b. Because a and b are separate amounts for two portions, the total quantity is given as (a + b).
et 5x be the money he spends and 4x be the amount he saves
therefore, 5x+4x= 18
9x= 18
x= 18/9= 2
Tom spends, 5×2 = $10
and he saves, 4×2= $8
Difference, = $10-$8= $2
Therefore, as per the given ratio in the question difference between the amount of money spent and the amount of money saved in a week is $2.
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Tom receives $18 from his father in a week. The ratio of the amount of
the money he spends to the amount of money he saves in a week is 5:4
What is the difference between the amount of money spent and
amount of money saved in a week?
Anyone able to help answer this? With solution please if possible!! Thanks!! (Math)
Answer:
x = 4
Step-by-step explanation:
Subtract 2 from both sides of the equation
13x+2=4x+38
13x+2-2=4x+38-2
Simplify
13x=4x+36
Subtract 4x from both sides of the equation
13x=4x+36
13x-4x+36-4x
Simplify
9x = 36
Divide both sides of the equation by the same term
9x/9 = 36/9
Simplify
x = 4
[RevyBreeze]
Answer:
x = 4Step-by-step explanation:
\(13x + 2 = 4x + 38 \\ 13x - 4x = 38 - 2 \\ 9x = 36 \\ x = \frac{36}{9} \\ x = 4\)
Simplify the expression.
: 8 - 2(3)
Answer: the answer is just 2
_______ need for touch (nfts) individuals use touch to evaluate products, whereas ______ need for touch (nfts) individuals touch things because they find the touch of items pleasurable.
1) Functonal
2) Hedonic
The functional need for touch (NFTs) refers to individuals using touch to evaluate products, while the hedonic need for touch (NFTs) refers to individuals touching things because they find the tactile sensation pleasurable.
The functional need for touch (NFTs) is rooted in the practical aspect of touch. It pertains to individuals utilizing the sense of touch to evaluate products. When evaluating products, people often rely on tactile feedback to assess qualities such as texture, material, weight, and durability.
On the other hand, the hedonic need for touch (NFTs) is driven by the pleasurable sensation of touching objects.
Some individuals simply enjoy the tactile experience itself, finding pleasure in the sensation of running their fingers over different surfaces, textures, or shapes.
This pleasure-seeking aspect of touch can be soothing, comforting, or even arousing for some people. It can range from appreciating the smoothness of a polished stone to the satisfying feedback of pressing a button on a mechanical keyboard.
Both the functional and hedonic aspects of touch play a significant role in human interactions with the physical world, influencing consumer behaviors, preferences, and overall sensory experiences.
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Can someone help me with this?
Find the slope of a line that
goes through the two points
(-3, 6) and (2, -5).
Answer:
-2.2
Step-by-step explanation:
m = y2 - y1/ x2- x1
m = -5 - 6/ 2 --3
m = -11/5
m = -2.2
Find the volume of the rectangular prism.
The volume is cm?
8 cm
5 cm
9 cm
Answer:
360 cm
Step-by-step explanation:
volume= length x width x height
8*5*9=360 cm
Answer:
360cm
Step-by-step explanation:
All you have to do is multiply the numbers.
To break it up, you can first multiply 8 and 5.
8 x 5 = 40.
Now that you have 40, multiply that by 9.
40 x 9 = 360.
Apply the unit: cm
360cm is your answer.
LAST ONE I NEED HELP ON PLEASE
Answer:
A
Step-by-step explanation:
First you find the volume of the cube which is 512. Then you find the volume of the cone which is 133.97333333 and so on. Lastly you subtract 512 by 133.973333333 (and so on) which is 378.026667. Rounded the answer would be 378.0 which is answer A.
Plz mark brainliest!!! I spent lot of time on this.
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What is Descartes's number?
100 times my number is 45.3 more than 3,000. What is the number?
Answer:
30.453
Step-by-step explanation:
n = (3000+45.3)/100
= n = 3045.3/100
= n = 30.453
Descartes's number is 30.453
you are surveying students to find out their opinion of th equiality of food served in the school cafeteria. you decide to poll only those students who but hot lunch on a particular day. is your sample random? explain.
No, the sample in this case is not random.
The sample in this case is not random. Random sampling involves selecting individuals from a population in such a way that each individual has an equal chance of being selected. In the given scenario, the sample consists only of students who buy hot lunch on a particular day.
This sampling method is not random because it introduces a bias by including only a specific subgroup of students who have chosen to buy hot lunch. It does not provide an equal opportunity for all students in the population to be selected for the survey.
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What is a z score in statistics?
Answer:
Below
Step-by-step explanation:
Z score is the ± standard deviations from the mean
Gabriel owns a small textile company that produces shirts. On a particular day, Gabriel has one worker come into the shop to make shirts. He must pay the worker $14 per hour and also pay $3 per shirt for material costs. The worker created an average of 3 shirts per hour and Gabriel's total expenses for labor and materials were $230. Write a system of equations that could be used to determine the number of hours the worker worked and the number of shirts the worker made. Define the variables that you use to write the system.
Answer:
Step-by-step explanation:
>First lets break down the problem...
Worker Pay : $14 per hour
Material Costs : $3 per shirt
Average 3 shirts per hour is made
Total expenses : $230
>Now create variables
Worker pay : 14h (h is hours)
Material Costs: 3s ( s is shirts)
Shirts made : 3sh (sh is shirts per hour)
> Plug-in variables to make an equation
14h + 3s = 230
>Solve if needed ( Use the Substitution Property)
10 kg of aubergines cost R42,00. What is the cost of 1 kg of aubergines?
Answer:
4,200 or 420
Step-by-step explanation:
4,200 if its 42,000 420 if its 4200 also 10 divided by 42000 or 10 divided by 4200.
20 points for 2 questions answered, math - plz n thx
what the answer of ½ ÷ ½
Answer:
its 1
Step-by-step explanation:
Please help! I will mark as brainliest IF answer is right. <3
Answer:
It point (-5,-3) lie on line y =mx-9
then it also satisfy the equation of line
\( - 3 = ( - 5) \times m - 9\)
\(m = - \frac{6}{ 5} \)
So the equation will be
\(y = ( \frac{ - 6}{5} )x - 9\)
Hope it helps you
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please help fast!!! i will give brainly
Answer:
What is the question?
Step-by-step explanation:
I dont see the question.
Step-by-step explanation:
1 fig.:not polygon
2 fig: polygon ,convex hexagon
3 fig.:polygon concave quadrilateral
4 fig.:polygon ,concave hexagon
*PLEASE ANSWER, MAKE SURE YOU ANSWER CORRECTLY* What dimensions would you need to measure the volume of the following prism?
Answer:
base of the triangle, height of the triangle, height of the prism.
Step-by-step explanation:
The formula for calculating the volume of the right triangle prism above is given as \( base area * height of prism \).
The base is a right triangle. Area of the right triangular base = ½*base*height of the triangle.
Therefore, the dimensions needed to find the volume of the prism are: "base of the triangle, height of the triangle, and height of the prism.
Answer:
The guy above me is correct its base of the triangle, height of the triangle, height of the prism
Step-by-step explanation:
I also got it correct on my quiz.
the cube with 2.00 m wide and 2.00 m long and 2.00 m high has a weight of 900.00 n. what pressure does it exert?
If the cube with 2.00 m wide and 2.00 m long and 2.00 m high has a weight of 900.00 n, then the cube exerts a pressure of 225 N/m².
To calculate the pressure exerted by the cube, follow these steps:
Step 1: To calculate the pressure exerted by the cube, you need to consider its weight and the area over which it is exerting the force. The cube has a weight of 900 N and dimensions of 2.00 m x 2.00 m x 2.00 m.
Step 2: To find the pressure, we will use the formula:
Pressure (P) = Force (F) / Area (A)
Step 3: In this case, the force is the weight of the cube (900 N), and the area is the base of the cube (2.00 m x 2.00 m).
A = 2.00 m * 2.00 m = 4.00 m²
Step 4: Now, you can calculate the pressure:
P = 900 N / 4.00 m² = 225 N/m²
So, the cube exerts a pressure of 225 N/m².
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Describe all the x-values at a distance of 20 or less from the number 12. Enter your answer in interval notation.
Answer: \(12< x \leq 20\)
Step-by-step explanation:
Given
x is at a distance of 20 or less i.e. x can be 20 or less
\(x\leq20\)
and it starts from the number 12 i.e.
\(12< x\)
In interval notation it is
\(12< x \leq 20\)
If a+ 1/a = 5 then find the value of; i) a² + 1/a² ii) a³ + 1/a³
Answer:
23
110
Step-by-step explanation:
We have a + 1/a = 5
(a + 1/a)² = a² + (1/a²) + 2.a.1/a = a² + (1/a²) + 2
But (a + 1/a)² = 5² = 25
So a² + (1/a²) = 25 - 2 = 23
(a + 1/a)³ = a³ + 3a²(1/a) + 3a(1/a)² + (1/a)2
= a³ + 1/a³ + 3a + 3/a
= a³ + 1/a³ + 3(a + 1/a)
= a³ + 1/a³ + 3(5)
= a³ + 1/a³ + 15
But (a + 1/a)³ = 5³ = 125
So
a³ + 1/a³ + 15 = 125
a³ + 1/a³ = 110
Answer:
23 and 110
Step-by-step explanation:
using the expansion
(a + b)² = a² + 2ab + b² , then
a + \(\frac{1}{a}\) = 5 ( square both sides )
(a + \(\frac{1}{a}\) )² = 5²
a² + 2(a × \(\frac{1}{a}\) ) + \(\frac{1}{a^2}\) = 25
a² + 2(1) + \(\frac{1}{a^2}\) = 25
a² + 2 + \(\frac{1}{a^2}\) = 25 ( subtract 2 from both sides )
a² + \(\frac{1}{a^2}\) = 23
---------------------------------------------------------------------
using the expansion
(a + b)³ = a³ + b³ + 3ab(a + b) , then
a + \(\frac{1}{a}\) = 5 ( cube both sides )
(a + \(\frac{1}{a}\) )³ = 5³
a³ + \(\frac{1}{a^3}\) + 3(a × \(\frac{1}{a}\) )(a + \(\frac{1}{a}\) ) = 125
a³ + \(\frac{1}{a^3}\) + 3(1)(5) = 125
a³ + \(\frac{1}{a^3}\) + (3 × 5) = 125
a³ + \(\frac{1}{a^3}\) + 15 = 125 ( subtract 15 from both sides )
a³ + \(\frac{1}{a^3}\) = 110
How much work is done on a car if you push with 100 Newtons of force but it does not move?
Answer:
0 Joules (No work)
Step-by-step explanation:
The amount of work done on an object is equal to the force applied to the object times the distance over which the force is applied. In this case, the force applied to the car is 100 newtons, but the car does not move, so the distance over which the force is applied is 0 meters.
Therefore, the amount of work done on the car is 100 newtons * 0 meters = 0 joules. This means that no energy has been transferred to or from the car as a result of the force applied to it.
Express each phrase as a rate and unit rate.
(Round your answer to the nearest hundredth.)
1) 7 calculators cost $120.00
Answer:
$100.00
Step-by-step explanation:
5 and above ex: 150 =200 140=100 under 5 keep the first letter then turn the other numbers into 0's 5 and above make the first number go up one then turn the rest of the numbers in to 0's