There are two angles supplementary to FGA, these are:
DGF and AGC.
What is an angle that is supplementary to FGA? We know that two angles are supplementary if their measures add up to a plane angle, this is, an angle of 180°.
With FGA the only plane angles that we can make (such that at least one of these points lies on the plane angle) are:
FGC
AGD
Then the angles that are supplementary to FGA are:
AGC
Such that:
FGA + AGC = FGC, a plane angle.
And DGF
DGF + FGA = DGA, also a plane angle.
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A scale drawing for a restaurant is shown below.In the drawing, represents .Assuming the dining hall is rectangular, find the area of the real dining hall
Answer
Area of the real dining hall = 72 m²
Explanation
The area of any rectangular shape is given as
Area = L × W
where
L = Length of the rectangle
W = Width of the rectangle
For this question, we have been given the dimensions of the dining hall in the drawing and told that
5 cm in the drawing = 6 m in reality
So, if the real length of the dining is L
5 cm = 6 m
10 cm = L
We can write a mathematical relationship by cross multiplying
(5) (L) = (10) (6)
5L = 60
Divide both sides by 5
(5L/5) = (60/5)
L = 12 m
If the real width of the dining hall is W
5 cm = 6 m
5 cm = W
We can write a mathematical relationship by cross multiplying
(5) (W) = (5) (6)
5W = 30
Divide both sides by 5
(5W/5) = (30/5)
W = 6 m
So, for the real dining hall,
Length = 12 m
Width = 6 m
Area = Length × Width
Area = 12 × 6
Area = 72 m²
Hope this Helps!!!
help plz anything works
5 weeks -> $20
Divide 5:
1 week -> $4
Replace week with "w" and $ with "s"
\(w=4s\)
Write an expression equivalent to (6x + 4y) – 2y by combining like terms.
Answer: 6x + 2y
Step-by-step explanation:
How many solutions does this system have? x-y=-4 3x+y=8 one two an infinite number no solution
Answer:
work is shown and pictured
Which set of ordered pairs (x, y) could represent a linear function?
The set of ordered pairs of A and C represents a linear function.
What is linear function?The graph of a linear function is a straight line. The following is the form of a linear function.
a + bx = y = f(x).
One independent variable and one dependent variable make up a linear function. x and y are the independent and dependent variables, respectively.
Given ordered pairs:
A (-2,8) (0,4) (2,3) (4,2)
B (1,2) (1,3) (1,4) (1,5)
C (-2,7) (0,12) (2,17) (4,22)
D (3,5) (4,7) (3,9) (5,11)
The definition of a linear function is the relationship between input and output values.
Range refers to the set of output values, and domain refers to the set of input values.
The fact that an input value cannot have two different output values is the most significant attribute of functions (which defines them). Having stated so, observe how sets B and D include pairings that defy this rule.
Therefore, since each input value only produces one output value, the correct solutions are A and C.
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The complete question:
Which set of ordered pairs X Y could represent a linear function of x
A (-2,8) (0,4) (2,3) (4,2)
B (1,2) (1,3) (1,4) (1,5)
C (-2,7) (0,12) (2,17) (4,22)
D (3,5) (4,7) (3,9) (5,11)
katie is evaluating the expression 15.75 / p +3p when p = 3.15. explain
The value of the given expression 15.75 / (p +3p) for p = 3.15 will be 1.25.
What is an expression?An expression is a combination of some mathematical symbol such that an arithmetic operator and variable such that are all constrained and create an equation.
In other meaning, expression is very useful to determine the end or root value of constraint.
As per the given expression,
15.75 / (p +3p)
Put p = 3.15
15.75/(3.15 + 3 x 3.15) = 1.25
Hence "For p = 3.15, the value of the provided expression 15.75 / (p + 3p) will be 1.25".
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figures that have the same size and the same shape
a. Similar figures
b. Congruent figures
c. Parallel figures
d. Symmetric figures
The correct answer to the question is b. Congruent figures.
Congruent figures are figures that have the same size and shape. In other words, if you were to compare two congruent figures, they would be identical in every way. This means that all corresponding sides and angles of the figures are equal.
For example, if you have two triangles that are congruent, their corresponding sides and angles will be equal. So if one triangle has a side length of 5 cm, the corresponding side of the other triangle will also have a length of 5 cm. Similarly, if one angle in one triangle measures 60 degrees, the corresponding angle in the other triangle will also measure 60 degrees.
It's important to note that congruence applies to all types of figures, including triangles, quadrilaterals, circles, and so on. When determining if two figures are congruent, you need to compare their corresponding sides and angles.
To summarize, figures that have the same size and shape are called congruent figures.
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Solve the Laplace equation V²u = 0, (0
The solution to the Laplace equation V²u = 0 with the given function f(θ) as \(u(r, \theta) = \sum[0 * r^\lambda+ (100 * \sqrt{2}) * r^{(-\lambda)}][Ccos(\lambda\theta) + Dsin(\lambda\theta)]\)
To solve the Laplace equation V²u = 0 with the given boundary condition u(1, θ) = f(θ), where f(θ) is defined as:
f(θ) = \(\left \{ {100 {if} 0 \leq \theta < \pi/4} \atop {0 if \pi/4 < \theta < 0}} \right}} \right.\)
We will use separation of variables to find the solution. Let's assume the solution can be written as u(r, θ) = R(r)h(θ), where R(r) represents the radial component and h(θ) represents the angular component.
Using separation of variables, we can write the Laplace equation as:
\((1/r)(d/dr)(r(dR/dr)) + (1/r^2)(d^2h/d\theta^2) = 0\)
To separate the variables, we set each term equal to a constant, denoted by -λ²:
\((1/r)(d/dr)(r(dR/dr)) = \lambda^2 (1)\)
\((1/r^2)(d^2h/d\theta^2) = -\lambda^2 (2)\)
Solving equation (1), we obtain the radial equation:
\(r(d^2R/dr^2) + (dR/dr) - \lambda^2R = 0\)
This is a standard differential equation with solutions of the form \(R(r) = Ar^{\lambda} + Br^{-\lambda}\), where A and B are constants.
Solving equation (2), we obtain the angular equation:
d²Θ/dθ² + λ²Θ = 0
This is a standard differential equation with solutions of the form
Θ(θ) = Ccos(λθ) + Dsin(λθ), where C and D are constants.
Now, we can combine the radial and angular components to form the general solution:
\(u(r, \theta) = \sum[Ar^\lambda + Br^{-\lambda}][Ccos(\lambda\theta) + Dsin(\lambda\theta)]\)
Next, we apply the boundary condition u(1, θ) = f(θ):\(u(1, \theta) = \sum[Ar^\lambda + Br^{-\lambda}][Ccos(\lambda\theta) + Dsin(\lambda\theta)] = f(\theta)\)
Comparing the terms on both sides, we can determine the coefficients A, B, C, and D using the given function f(θ).
To solve these equations, we'll use trigonometric identities and properties. Let's begin with the first equation:
\(Acos(\lambda\theta) + Bsin(\lambda\theta) = 100\)
We can rewrite this equation using the identity sin(π/4) = cos(π/4) = \(\sqrt2\):
\(Acos(\lambda\theta) + Bsin(\lambda\theta) = 100\)
(A/\(\sqrt2\) ) * \(\sqrt2\) * cos(λθ) + (B/\(\sqrt2\) ) * \(\sqrt2\) * sin(λθ) = 100
Now, we can equate the coefficients of cos(λθ) and sin(λθ) separately to determine A and B. Since cos(λθ) and sin(λθ) are orthogonal functions, their coefficients must be zero:
(A/\(\sqrt2\)) * \(\sqrt2\) = 0 (coefficient of cos(λθ))
(B/\(\sqrt2\)) * \(\sqrt2\)= 100 (coefficient of sin(λθ))
From the first equation, we can conclude that A = 0. Substituting this into the second equation:
(B/\(\sqrt2\)) * \(\sqrt2\) = 100
B = \(\sqrt2\) * 100
B = 100 * \(\sqrt2\)
Therefore, we have A = 0 and B = 100 * \(\sqrt2\).
For the interval π/4 < θ < 2π, we have:
\(Acos(\lambda\theta) + Bsin(\lambda\theta) = 0\)
Again, equating the coefficients of cos(λθ) and sin(λθ) separately:
\(Acos(\lambda\theta) + Bsin(\lambda\theta) = 0\)
A * 0 + B * 1 = 0
B = 0
From this equation, we conclude that B = 0.
To summarize, we found A = 0, B = 100 * \(\sqrt2\) for the interval 0 ≤ θ < π/4, and B = 0 for the interval π/4 < θ < 2π.
Using these coefficients, we can now write the solution to the Laplace equation V²u = 0 with the given function f(θ) as:
\(u(r, \theta) = \sum[0 * r^\lambda+ (100 * \sqrt{2}) * r^{(-\lambda)}][Ccos(\lambda\theta) + Dsin(\lambda\theta)]\)
Therefore, the solution to the Laplace equation V²u = 0 with the given function f(θ) as \(u(r, \theta) = \sum[0 * r^\lambda+ (100 * \sqrt{2}) * r^{(-\lambda)}][Ccos(\lambda\theta) + Dsin(\lambda\theta)]\)
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The diameter of each wheel on a Formula
One race car is 26 in. If the tires must be
changed after 150,000 rotations, how many
miles will the race car travel on 1 set of tires?
Note: 12 in. = 1 ft; 5280 ft = 1 mile
A formula one race car will travel for 193.45 miles before changing its tires.
From the case, we know that:
tires diameter = 26 in.
1 set of tires = 150,000 rotations
12 in = 1 ft
1 miles = 5280 ft
We need to find the circumference of the tires before finding the total travel length.
Circumference = πd
Circumference = π(26in)
Circumference = 81.714 in.
We need to find the tires circumference in mile scale:
Circumference = 81.714 in : (12 inc/ft) : (5280 ft/miles)
Circumference = 0.0013 miles
Total travel distance = tires circumference x rotations
Total travel distance = 0.0013 x 150,000
Total travel distance = 193.45 miles
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Simplify
Rewrite the expression in the form 5^n
5^-5/5^8= ?
I need the answer to ?
Answer:
\(5^{-13}\)
Step-by-step explanation:
\(\frac{5^{-5}}{5^8}=5^{-5-8}=5^{-13}\)
Answer: 5^-13
Step-by-step explanation:
You can first convert the division to a multiplication :
Dividing by 5^8 is the same as multiplying by the inverse, so :
5^-5 / 5^8 = 5^-5 * 1/5^8
You can rewrite 1/5^8 as 5^-8
so 5^-5 * 1/5^8 = 5^-5 * 5^-8
you then just need to add the exponents in a multiplication
5^-5 * 5^-8 = 5^(-5-8) = 5^-13
Could anyone help, if you could?
Answer: Your answer is B! Hope you have an awesome day, and be kind be You!!! <3
Step-by-step explanation: Also, I'm 3D printing the Tesla Cyber truck, and this is the design I have so far. What do you think?
The table shows the number of eggs, based on the number of packs. Which of the following expressions could be used to find the rate of change in the table? Select ALL that apply.
What is the product of -15 and -3
Answer:
45
Step-by-step explanation:
\(\huge\text{Hey there!}\)
\(\large\text{Guide to follow:}\)
\(\large\text{The word \boxed{\rm{difference}} means subtraction/subtract.}\)
\(\large\text{The word \boxed{\rm{product}} means addition/add.}\)
\(\large\text{The word \boxed{\rm{quotient}} means division/divide.}\)
\(\large\text{The word \boxed{\rm{product}} means multiplication/multiply.}\)
\(\large\text{Also guide to follow:}\)
\(\large\text{2 negatives gives you a positive}\)
\(\large\text{2 positives gives you a positive as well}\)
\(\large\text{1 negative \& 1 positive gives you a negative}\)
\(\large\text{1 positive \& 1 negative gives you a negative as well}\)
\(\large\textsf{So, in this particular question we're doing multiplication because the}\\\large\textsf{key term in the word phrase is \boxed{\textsf{product}}. }\)
\(\large\text{Now, that we have that information out of the way we can answer}\\\large\text{your given question.}\)
\(\large\text{The product of }\large\text{-15 and -3 is translated to \boxed{\rm{-}\large\text{15 }\times\ -\large\text{3}}}\)
\(\large\text{Equation: }\rm{-15\times-3}\)
\(\large\text{Simplify the equation we have gathered above and you should have}\\\large\text{pverall answer.}\)
\(\large\text{We have received was 45}\)
\(\huge\text{Therefore, your answer should be \boxed{\mathsf{45}}}\huge\checkmark\)
\(\huge\text{Good luck on your assignment \& enjoy your day!}\)
~\(\frak{Amphitrite1040:)}\)the answer to c^-5 x c^2
Answer:
\(\frac{1}{c^{3} }\) or \(c^{-3}\)
Step-by-step explanation:
\(c^{-5} * c^{2}\) = \(\frac{1}{c^{5}}\) * \(c^{2}\) = \(\frac{c^{2} }{c^{5} }\) ; simplify to \(\frac{1}{c^{3} }\) = \(c^{-3}\)
∂²p/∂r² + 1/r ∂p/∂r = ϕμC/k ∂p/∂t
derivation of equations
1-partial derivative diffusivity equation spherical flow
2- partial derivative diffusivity equation hemi- spherical flow
The partial derivative diffusivity equation for spherical flow is ∂²p/∂r² + (1/r) ∂p/∂r = ϕμC/k ∂p/∂t, and for hemispherical flow, it is the same equation.
1. The partial derivative diffusivity equation for spherical flow is derived from the spherical coordinate system and applies to radial flow in a spherical geometry. It can be expressed as ∂²p/∂r² + (1/r) ∂p/∂r = ϕμC/k ∂p/∂t.
2. The partial derivative diffusivity equation for hemispherical flow is derived from the hemispherical coordinate system and applies to radial flow in a hemispherical geometry. It can be expressed as ∂²p/∂r² + (1/r) ∂p/∂r = ϕμC/k ∂p/∂t.
1. For the derivation of the partial derivative diffusivity equation for spherical flow, we consider a spherical coordinate system with the radial direction (r), the azimuthal angle (θ), and the polar angle (φ). By assuming steady-state flow and neglecting the other coordinate directions, we focus on radial flow. Applying the Laplace operator (∇²) in spherical coordinates, we obtain ∇²p = (1/r²) (∂/∂r) (r² ∂p/∂r). Simplifying this expression, we arrive at ∂²p/∂r² + (1/r) ∂p/∂r.
2. Similarly, for the derivation of the partial derivative diffusivity equation for hemispherical flow, we consider a hemispherical coordinate system with the radial direction (r), the azimuthal angle (θ), and the elevation angle (ε). Again, assuming steady-state flow and neglecting the other coordinate directions, we focus on radial flow. Applying the Laplace operator (∇²) in hemispherical coordinates, we obtain ∇²p = (1/r²) (∂/∂r) (r² ∂p/∂r). Simplifying this expression, we arrive at ∂²p/∂r² + (1/r) ∂p/∂r.
In both cases, the term ϕμC/k ∂p/∂t represents the source or sink term, where ϕ is the porosity, μ is the fluid viscosity, C is the compressibility, k is the permeability, and ∂p/∂t is the change in pressure over time.
These equations are commonly used in fluid mechanics and petroleum engineering to describe radial flow behavior in spherical and hemispherical geometries, respectively.
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A conditional relative frequency table is generated by column from a set of data. The conditional relative frequencies of the two categorical variables are then compared.
If the relative frequencies being compared are 0.21 and 0.79, which conclusion is most likely supported by the data?
An association cannot be determined between the categorical variables because the relative frequencies are not similar in value.
There is likely an association between the categorical variables because the relative frequencies are not similar in value.
An association cannot be determined between the categorical variables because the sum of the relative frequencies is 1.0.
There is likely an association between the categorical variables because the sum of the relative frequencies is 1.0.
0.06
0.24
0.69
1.0
Based on the significant difference between the relative frequencies of 0.21 and 0.79, along with the calculated sum of 1.0, the data supports the conclusion that there is likely an association between the categorical variables.
Based on the data, if the relative frequencies being compared are 0.21 and 0.79, we can draw some conclusions. Firstly, the sum of the relative frequencies is 1.0, indicating that they account for all the occurrences within the data set. However, the more crucial aspect is the comparison of the relative frequencies themselves.
Considering that the relative frequencies of 0.21 and 0.79 are significantly different, it suggests that there may be an association between the categorical variables. When there is a strong association, we would generally expect the relative frequencies to be similar or close in value. In this case, the disparity between the relative frequencies supports the notion of an association between the categorical variables.
Therefore, the conclusion most likely supported by the data is that there is likely an association between the categorical variables because the relative frequencies are not similar in value. The fact that the sum of the relative frequencies is 1.0 does not provide evidence for or against an association, but rather serves as a validation that they represent the complete set of occurrences within the data.
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Let R be a ring and r1,...,rn ∈ R. Prove that the subset ={λ1r1 +···+ λnrn | λ1,...,λn ∈ R} is an ideal in R.
Since S satisfies both defining properties of an ideal in R, we can conclude that S is indeed an ideal in R.
To prove that the subset S = {λ1r1 +···+ λnrn | λ1,...,λn ∈ R} is an ideal in R, we need to show that it satisfies the two defining properties of an ideal:
1. S is a subgroup of R under addition.
2. S is closed under multiplication by elements of R.
First, let's show that S is a subgroup of R under addition.
- Closure under addition: Let x,y ∈ S, so that x = λ1r1 + ··· + λnrn and y = μ1r1 + ··· + μnrn for some λi,μi ∈ R. Then their sum is x + y = (λ1 + μ1)r1 + ··· + (λn + μn)rn, which is in S since each coefficient is still in R.
- Additive inverse: Let x ∈ S, so that x = λ1r1 + ··· + λnrn for some λi ∈ R. Then its additive inverse is -x = (-λ1)r1 + ··· + (-λn)rn, which is also in S since each coefficient is still in R.
Therefore, S is a subgroup of R under addition.
Next, let's show that S is closed under multiplication by elements of R.
- Closure under left multiplication: Let r ∈ R and x ∈ S, so that x = λ1r1 + ··· + λnrn for some λi ∈ R. Then their product is rx = (rλ1)r1 + ··· + (rλn)rn, which is in S since each coefficient is still in R.
- Closure under right multiplication: This follows from the distributive property of multiplication over addition.
Therefore, S is closed under multiplication by elements of R.
Since S satisfies both defining properties of an ideal in R, we can conclude that S is indeed an ideal in R.
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Given ABC, mzA = 50°, mzB = 60°, and a = 7. Find c.
Answer:
7.01.
Step-by-step explanation:
We can use the Law of Cosines to solve for c:
c^2 = a^2 + b^2 - 2ab*cos(C)
We are given a = 7, m∠A = 50°, and m∠B = 60°. We can use the fact that the angles in a triangle add up to 180° to find m∠C:
m∠C = 180° - m∠A - m∠B
m∠C = 180° - 50° - 60°
m∠C = 70°
Now we can substitute the known values into the Law of Cosines and solve for c:
c^2 = 7^2 + b^2 - 27bcos(70°)
c^2 = 49 + b^2 - 14bcos(70°)
We don't know b, but we can solve for it using the given equation:
3/2 + b = 7/4
Subtracting 3/2 from both sides:
b = 7/4 - 3/2
b = 1/4
Now we can substitute b = 1/4 into the equation for c^2:
c^2 = 49 + (1/4)^2 - 14*(7/4)*(1/4)*cos(70°)
c^2 = 49.1709
c ≈ 7.01
Therefore, the length of side c is approximately 7.01.
the first left endpoitn of any parition of an interval[a,b] is _________
The first left endpoint of any partition of an interval [a, b] is the value of 'a'.
An interval [a, b] represents a range of real numbers between the values of 'a' and 'b', including both endpoints.
The left endpoint, 'a', is the smaller value of the two, and the right endpoint, 'b', is the larger value.
Now, let's consider the concept of partitioning an interval.
Partitioning an interval means dividing it into smaller subintervals.
In this context, typically refer to a partition as a set of points that divides the interval into subintervals.
For example, let's consider the interval [a, b] and a partition P = {x₁, x₂, x₃, ..., xₙ}.
This partition divides the interval into subintervals [a, x₁], [x₁, x₂], [x₂, x₃], ..., [xₙ₋₁, xₙ], [xₙ, b].
Each subinterval represents a smaller range within the larger interval.
Now, coming to the first left endpoint of any partition, it refers to the leftmost point of the first subinterval in the partition.
Since the interval [a, b] includes the left endpoint 'a', the first left endpoint of any partition will always be the value of 'a'.
Therefore, the first left endpoint of an interval [a, b] for any partition is the value 'a', as it represents leftmost point of first subinterval in partition.
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a year is a leap year if and only if the year number is divisible by 400 (such as 2000) or is divisible by 4 but not 100 (such as 2012). the 200th anniversary of the birth of novelist charles dickens was celebrated on february 7, 2012, a tuesday. on what day of the week was dickens born?
Charles Dickens was born on a Saturday. By calculating the number of days between his birthdate and February 7, 2012, we determine that there were 4 extra days. Adding gives Saturday. So, the correct answer is B).
To determine the day of the week when Charles Dickens was born, we can calculate the number of days between his birthdate and February 7, 2012.
The year 2012 is a leap year because it is divisible by 4 but not divisible by 100. In a leap year, there are 366 days.
Since 2012 is a leap year, we need to calculate the number of days between February 7, 2012, and Charles Dickens' birthdate. The difference is 200 years, which is equal to 200 * 365 days for non-leap years plus an additional 49 days for the leap years in between (as there are 49 leap years in 200 years).
Total days = (200 * 365) + 49 = 73,049 days
Now, if we divide 73,049 by 7, the remainder will give us the day of the week.
73,049 divided by 7 = 10,435 remainder 4
Therefore, the remainder is 4, indicating that there were 4 extra days beyond Tuesday. Counting forward, Tuesday + 4 days gives us Saturday.
So, the answer is (B) Saturday.
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--The given question is incomplete, the complete question is given below " A year is a leap year if and only if the year number is divisible by 400 (such as 2000) or is divisible by 4 but not 100 (such as 2012). The 200th anniversary of the birth of novelist Charles Dickens was celebrated on February 7, 2012, a Tuesday. On what day of the week was Dickens born?
(A) Friday
(B) Saturday
(C) Sunday
(D) Monday
(E) Tuesday"--
A circle has a radius of 16 m. What is its circumference?
Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.
16 m
Answer:
C=100.53 CM²
Step-by-step explanation:
Formula to the circumference of a circle is 2π·r
2π=6.28
6.28·16=100.53 CM²
PLZZ ANSWERR QUICKKK
Answer:
4+8+6=18
6+4+8=18
6+12=18
A Is Correct
Step-by-step explanation:
use ur smartness and brain will help u out
What is 8×∙(−7)∙3 = Because I need it right now for my HOMEWORK, so if you know the answer please tell me what it is.
Answer:
-168
Step-by-step explanation:
8 × -7 × 3
-56 × 3
-168
please help ill give brainliest to the first correct answer.
i really dont understand this question
The required time is mathematically given as
t-150 minutes.
This is further explained below.
What is the time?We know that the volume of the prism is given by.
\(\text{Volume}=\text{(Base Area)}\times\text{height}\)
\(\text{Base Area}=\dfrac{1}{2}\times(1.4+0.6)\times2\)
\(\text{Base Area}=2\ \text{m}^2\)
Now,
\(\text{Volume}=2\times1=2\ \text{m}^3\)
Given that there is a twenty percent drop in the level of the pond during the first thirty minutes.
Because of this, the volume increases.
\(\text{Volume}=2\times0.8=1.6\ \text{m}^3\)
Now, the rate of emptying the tank is,
\(=\dfrac{2-1.6}{30} =\dfrac{1}{75} \ \text{m}^3/ \text{min}\)
In conclusion, We also know that,
$$
\(\text{time}=\dfrac{\text{volume}}{\text{rate}}\)
\(\text{time}=\dfrac{2}{\frac{1}{75} } =150 \ \text{min}\)
Therefore, Colin must wait for the pond to drain for a total of 150 minutes.
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The table shows the height of a toy rocket, h(t), t seconds after being launched. The data can be modeled using a quadratic regression equation.
Time (s) 1 2 3 4
Height (ft) 91.1 135.7 148.5 129.1
Approximately how long after being launched will the toy rocket hit the ground?
0 s
4.4 s
5.1 s
5.9 s
Thus, the time rocket spent in the air before it impacted the ground by keeping in mind that after it reaches the ground, the rocket's height is zero is 0.168 seconds.
Explain about the quadratic regression?Quadratics and parabolas are frequently used in practical settings. Situations that can be approximated by quadratic functions include tossing a ball, firing a cannon, jumping off a platform, and hitting a golf ball.
Input/ output data for the quadratic regression equation
Time (s) 1 2 3 4
Height (ft) 91.1 135.7 148.5 129.1
quadratic regression equation is found using the calculator for the values given in table.
y = 14.4x² + 92.68x - 16
You may calculate how long that rocket spent in the air before it impacted the ground by keeping in mind that after it reaches the ground, the rocket's height is zero.
Put x = t and y = 0
0 = 14.4t² + 92.68t - 16
Using the quadratic formula, find the time t.
t = [-b ± √(b² - 4ac)] / 2a
a = 14.4 , b = 92.68 , c = -16
Put the values:
t = [-92.68 ± √(92.68² - 4* 14.4* (-16))] / 2* 14.4
t = [-92.68 ± 97.52] / 28.8
t = (-92.68 + 97.52)/28.8 and t = (-92.68 - 97.52)/28.8
t = 0.168 seconds and t = -6.6 seconds
Negative values not taken.
Thus, the time that rocket spent in the air before it impacted the ground by keeping in mind that after it reaches the ground, the rocket's height is zero is 0.168 seconds.
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Algebra Find the volume of the three-dimensional figure in terms of x.
Please if anyone is available could you solve this I’m a bit stuck. Thank you!
Answer:
Step-by-step explanation:
residents of three villages with three different types of water supply were asked to participate in a survey to identify the prevalence of cholera carriers. virtually everyone present at the time submitted to examination. the proportion of residents in each village who were carriers was computed and compared. what type of study was this?
The type of study was cross-sectional study.
An example of an observational study design is the cross-sectional study design. In a cross-sectional study, the researcher simultaneously assesses the participants exposures and outcomes.
After choosing the study subjects, the researcher conducts the study in order to evaluate the exposure and results.
For population-based surveys and to determine the prevalence of illnesses in clinic-based samples, cross-sectional designs are employed.
These studies are typically affordable and reasonably quick to carry out.
An illustration of a cross-sectional study might be a medical investigation into the incidence of cancer in a particular community.
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42−(2c+4)=4(c+6)+c what is the value of C
Consider the solid obtained by rotating the region bounded by the given curves about the x-axis. y = 2/7 x^2, y = 9/7 - x^2 Find the volume V of this solid. V = Sketch the region, the solid, and a typical disk or washer. (Do this on paper. Your instructor may ask you to turn in this work.)
The volume of the solid obtained by rotating the region bounded by the curves about the x-axis is π/77 (243 - 9sqrt(3)).
To find the volume of the solid obtained by rotating the region bounded by the curves about the x-axis, we can use the method of cylindrical shells. This involves integrating the circumference of a cylindrical shell times its height to obtain the volume of each shell, and then adding up the volumes of all the shells to get the total volume.
First, let's find the points of intersection of the two curves:
2/7 x^2 = 9/7 - x^2
9/7 = 9/7 x^2 + 2/7 x^2
9/7 = 11/7 x^2
x^2 = 9/11
x = ±sqrt(9/11)
The solid we obtain by rotating this region about the x-axis will have cylindrical shells with height dx, radius x, and circumference 2πx. Therefore, the volume of each shell will be:
dV = 2πx × h × dx
where h is the difference between the y-values of the curves at x:
h = (9/7 - x^2) - (2/7 x^2) = 9/7 - 9/7 x^2
Therefore, the total volume of the solid will be:
V = ∫(from x = -sqrt(9/11) to x = sqrt(9/11)) 2πx * (9/7 - 9/7 x^2) dx
V = 2π/7 ∫(from x = -sqrt(9/11) to x = sqrt(9/11)) x(9 - 9x^2) dx
We can simplify the integrand by setting u = 9x^2:
du/dx = 18x
dx = du/18x
Substituting:
V = 2π/7 ∫(from u = 9/11 to u = 81/11) (1/2)u^(1/2) (9/2) (du/18x)
V = π/7 ∫(from u = 9/11 to u = 81/11) u^(1/2) / x du
V = π/7 ∫(from u = 9/11 to u = 81/11) u^(1/2) / sqrt(9/11 - u/11) du
This integral can be evaluated using a trigonometric substitution. Let u = 9/11 sin^2 θ, then:
du/dθ = (18/11) sin θ cos θ dθ
Substituting:
V = π/7 ∫(from θ = π/6 to θ = π/2) (81/121) sin^3 θ dθ
V = π/7 [(81/121) * (3/4) - (9/121) × (sqrt(3)/2)]
V = π/77 (243 - 9sqrt(3))
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Which sign makes the statement true?
590 ? 5 × 10^2
(>) (<) (=).
Answer:
590 > 5 × 10^2
Step-by-step explanation:
Answer:
>
Step-by-step explanation:
5×10^2=5×10×10=500, therefore 590>500