Answer:
I think the answer is A 64cm cubed
The one at the bottom
Answer: Decrease it’s a negative
Step-by-step explanation:
One day 20% of the children were away from school on a visit to the museum. If there were369 children altogether, —————— children were in school and —————were on museum trip
Answer: See explanation
Step-by-step explanation:
Total number of children = 369
Percentage of children on museum trip = 20%
Number of children on museum trip = 20/100 × 369
= 1/5 × 369
= 73.8 = 74 approximately
Number of children in school = 369 - 73.8 = 295.2 = 295 approximately
3 (x + 1 ) = 33 solve for x
Answer:
x=10
Step-by-step explanation:
x+1=11
Answer:
X-10
Step-by-step explanation:
3(x+1)=33
3x+3=33
3x+3-3=33-3
3x=30
x=10
A trapezoid was broken into a rectangle and a triangle. What is the length, b, of the base of the triangle?
O 2 cm
O 4 cm
O 6 cm
O 8 cm
Answer:
2
Step-by-step explanation:
because if 10 is the whole line of the base at the bottom of the trapezoid
and 8 is the whole top 10-8=2
The altitude to the hypotenuse of a right triangle divides the hypotenuse into segments 2 cm and 8 cm long. Find the length of the altitude to the hypotenuse? (Round to the nearest whole number). What is the Altitude ?
Answer:
Altitude of the right triangle is 4 cm.
Step-by-step explanation:
The altitude divides the right triangle's hypotenuse as 2 cm and 8 cm long.Let's use formula for similar right triangles proportional equation.I'll show you the diagram with steps.
HELP UHM, true or false question, look at the image, dont guess and no links + brainiest + extra points
Answer:
false
it can have more
Answer:
Yes
What solid shape do the two nets make?
1. Rectangular Prism
2. Triangular Prism
Brainlist Pls!
Question * The degree of precision of a quadrature formula whose error term is h4 120 f(5)) is: 4 2. This option This option 3. 5 This option This option
The degree of precision of a quadrature formula whose error term is h4/120 f(5)) is 4. Option a is the correct answer.
The degree of precision of a quadrature formula measures how many terms of the Taylor series can be reproduced by the formula. It is also known as the order of the formula or the number of nodes used in the quadrature.
The degree of precision of a quadrature formula that produces a zero error on all polynomials of degree less than or equal to n is n.
Therefore, the degree of precision for this quadrature formula is 4, indicating its accuracy in approximating integrals involving functions up to the fourth degree. The correct option is a.
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Complete question
The degree of precision of a quadrature formula whose error term is h4 120 f(5)) is:
Option a - 4
Option b - 2
Option c- 3
Option d- 5
pls help it due soon
Answers:
Level 1 Q:
[tex]5x+4x=90\\9x=90\\x=10[/tex]
Level 2 Q:
[tex]48+2x=90\\2x=42\\x=21[/tex]
Level 3 Q:
[tex]25+(x-18)=90\\x=83[/tex]
use the elimination method to solve for the general solution to the system
x'= x-y
y''= -2x'+e^t
The general solution to the given system of differential equations is:
x(t) = c1 + c2e^tcos((√3t)/2) + c3e^tsin((√3t)/2)
y(t) = c1 + c2e^tcos((√3t)/2) + c3e^tsin((√3t)/2)
where c1, c2, and c3 are constants determined by initial conditions or specific constraints.
To solve the system using the elimination method, we need to eliminate one variable at a time. Let's start by eliminating x.
x' = x - y ...........(1)
y'' = -2x' + e^t ...........(2)
First, differentiate equation (1) with respect to t to get:
x'' = x' - y' ...........(3)
Now substitute the value of x' from equation (3) into equation (2):
y'' = -2(x' - y) + e^t
y'' = -2x' + 2y + e^t ...........(4)
To eliminate x', we subtract equation (4) from equation (2):
y'' - y' = e^t ...........(5)
Next, differentiate equation (5) with respect to t:
y''' - y'' = e^t ...........(6)
Now we have two equations:
y'' - y' = e^t ...........(5)
y''' - y'' = e^t ...........(6)
To solve these equations, we can solve equation (6) for y'' and substitute it into equation (5):
(y''' - e^t) - (y'' - y') = e^t
y''' - y'' + y' - e^t = e^t
y''' - y'' + y' = 2e^t ...........(7)
Equation (7) is a third-order linear homogeneous differential equation for y.
To find the general solution to equation (7), we solve its characteristic equation:
r^3 - r^2 + r = 0
Factoring out an r, we get:
r(r^2 - r + 1) = 0
This equation has one real root r = 0 and two complex roots r = (1 ± √3i)/2.
Therefore, the general solution for y is:
y(t) = c1 + c2e^tcos((√3t)/2) + c3e^tsin((√3t)/2)
Now, we can substitute the general solution for y into equation (5) to solve for x:
y'' - y' = e^t
(c2e^tcos((√3t)/2) + c3e^tsin((√3t)/2))' - (c2e^tcos((√3t)/2) + c3e^tsin((√3t)/2)) = e^t
Differentiating and simplifying, we get:
(-c2e^t(√3/2)sin((√3t)/2) + c3e^t(√3/2)cos((√3t)/2)) - (c2e^tcos((√3t)/2) + c3e^tsin((√3t)/2)) = e^t
Simplifying further, we get:
(-c2e^t(√3/2)sin((√3t)/2) + c3e^t(√3/2)cos((√3t)/2)) - c2e^tcos((√3t)/2) - c3e^tsin((√3t)/2) = e^t
Now, equating the coefficients of e^t and the trigonometric terms, we can solve for c1, c2, and c3.
This completes the solution process using the elimination method for the given system of differential equations.
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f(x) = x^2 + 4x-12
(a) What are the x-intercepts?
(b) What is the y-intercept?
(c) What is the maximum or minimum value?
Answer:
a) x-intercepts at -6 and 2
b) y-intercept at -12
c) minimum at (-2, -16)
Step-by-step explanation:
describe the sample space in terms of the condition (functional or defective) of each nozzle after a year. let ""f"" denote a functional nozzle after a year and ""d"" denote a defective one.
The sample space, in terms of the condition (functional or defective) of each nozzle after a year, can be represented using the symbols "f" and "d" to denote a functional and defective nozzle, respectively.
The possible outcomes in the sample space can be described as a combination of these symbols. For example, if we have three nozzles, the sample space could include outcomes such as "fff" (all three nozzles are functional), "dfd" (the first and third nozzles are functional, while the second one is defective), "ffd" (the first two nozzles are functional, while the third one is defective), and so on.
Each outcome in the sample space corresponds to a particular arrangement or configuration of functional and defective nozzles after a year. The sample space encompasses all the possible combinations and provides a comprehensive representation of the different outcomes that can occur.
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Find the volume of a cone with a base radius of 5 in. and a height of 12 in.
Answer:
V = 314
Step-by-step explanation:
Volume of a cone:
V = πr²(h/3)
Given:
r = 5
h = 12
Work:
V = πr²(h/3)
V = 3.14(5²)(12/3)
V = 3.14(25)(4)
V = 314
Answer:
The volume of the cone is 311.1in³.
Step-by-step explanation:
V = ⅓Bh where B = πr²
V = ⅓πr²h
V = ⅓(22/7)(5²)12
V = 0.33(3.142)(25)12
V = 311.1in³
Can anyone help with this question geometry
Answer:
The answer would have to be shown in your working out, so look down below for an explanation.
Step-by-step explanation:
You would make each equation with the same letter equal to each other
5x- 10= 7x-20
3y= 5y-16
Then you would solve the equations
5x-10 = 7x-20
+20 +20
5x +10= 7x
-5x -5x
10= 2x
x= 5
-
3y = 5y-16
+16 +16
3y+16=5y
-3y -3y
16 = 2y
y = 8
And there's how you would prove that x=5 and y=8
What is the value of x?
Answer:
C
24Step-by-step explanation:
Trust me on this one.
1. (i) On a sheet of graph paper, using a scale of
1 cm to represent 1 unit on the x-axis and
1 cm to represent 1 unit on the y-axis, draw
the graph of each of the following functions
for values of x from 0 to 4.
(a) y=2x+8
(b) y=2x+2
(c) y=2x-3
(d) y=2x-6
(ii) What do you notice about the lines you have
drawn in part (i)?
i)
The graph is attached as an image.
ii.) We notice that all the lines have the same slope of 2 which shows a consistent rate of change
What is a graph?A graph is described as as the pictorial representation of that represents any given data in a chronological manner that is ascending to descending type.
1. y =2x+8
x = 1
Y = 2(1)+8
Y= 2+8
Y = 10
2. y =2x + 2
x=2
Y= 2(2) +2
=4+2
Y=6
3. y= 2x – 3
x = 3
Y = 2(3) -3
Y= 6-3
Y=3
4. y = 2x -6
x=4
Y = 2(4) -6
Y= 8-6
Y=2
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Let A be a 3 x 3 matrix. Suppose that the eigenvalues of A are 1 = -1 and 12 = 3. Let V1, V2, V3 be defined below: N V1 V2 = V3 = - 1 3 Further, suppose that: A basis for the eigenspace of A corresponding to 11 = -1 is Bi = {v1}. A basis for the eigenspace of A corresponding to 12 = 3 is B2 = {V2, V3} (a) (2 points). Find the product: Av2. O 0 2 [B (b) (7 points). Find the product: A(3v1 - v3). Show all work. А 3 vi , 13 0 V22 u 3 3 3 O 4 3 (-1)(-4) o 1(-4) -1(3) O 0 O 1 H: 888 HJE] 3] ] 10 PAR88] (c) (3 points). Identify two eigenvectors of A corresponding to li = -1. U al -10 6 1 (d) (8 points). Is A diagonalizable? Answer "Yes" or "No". If you answered "Yes", diagonalize A: that is, find matrices P and D such that P-1AP = D. If you answered "No", explain why. Yes
Given a 3x3 matrix A with eigenvalues -1 and 3, and corresponding eigenvectors V1 = [-1, 3, -1] and V2 = [0, 2, 3], we can determine various products and properties of the matrix A.
(a) To find the product Av2, we simply multiply the matrix A by the vector V2. The resulting product is [0, 2, 10].
(b) To find the product A(3v1 - v3), we first calculate 3v1 - v3, which is equal to [-4, -10, 6]. Then, we multiply the matrix A by this vector to obtain the product [-4, -10, 10].
(c) Two eigenvectors corresponding to the eigenvalue -1 can be identified as V1 = [-1, 3, -1] and any scalar multiple of V1, such as [2, -6, 2].
(d) To determine if A is diagonalizable, we check if it has three linearly independent eigenvectors. In this case, A has two distinct eigenvalues (-1 and 3), and we are given that the eigenspace corresponding to each eigenvalue has a basis with two vectors in total. Since the sum of the dimensions of the eigenspaces is equal to the dimension of A (3), A is diagonalizable.
To diagonalize A, we construct a matrix P with the eigenvectors as its columns. We have P = [V1, V2, V3] = [-1, 0, 2; 3, 2, -6; -1, 3, 2]. Then, we calculate P-1 and find D, the diagonal matrix of eigenvalues: D = diag(-1, 3). Finally, we obtain the diagonalized form P-1AP = D, where P-1 is the inverse of matrix P.
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identify the intercepts of the relationship graphed below
Answer:
y=9
x= -2, 4
Step-by-step explanation:
1)
The fourth-grade students are taking a field trip and need to rent minivans. Each minivan will hold 8 people. There are 135 people
going on the trip. How many people will not be able to go if they only rent 16 minivans?
A) 6 people
B) 7 people
C)8 people
D) 9 people
PLEASEE HELP
ILL GIVE BRAINLIEST
Answer:
d. 9
Step-by-step explanation:
i friken used all my attempts guessing on this and got it wrong all times so 9 is the last answer
A bag of marbles contains 4 green, 3 blue, 2 red, and 5 yellow marbles. How many total possible outcomes are when choosing a marble from the bag?
Answer:
14
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
4+3+2+5=14
I need help with this
Answer:
4/5 to 80%
7/20 to 35%
9/4 to 225%
25/1000 to 2.5%
Step-by-step explanation:
isabella bought packs of stickers to give to her friends. each pack costs $3. she spent a total of $18 on stickers. how many packs did she buy? write an equation to represent this situation.
To represent this situation, we can use the following equation:x = the number of packs of stickers Isabella bought x packs of stickers, and each pack costs $3.
So the total cost of the stickers is given by the following equation:3x = total cost of stickers Since she spent a total of $18 on stickers, we can set the equation equal to 18 to get:3x = 183x/3 = 18/3x = 6Therefore, Isabella bought 6 packs of stickers to give to her friends.
To solve this problem, let's assume that Isabella bought "x" packs of stickers.
According to the given information, each pack costs $3. So, the total amount Isabella spent on stickers is $18.
We can represent this situation with the following equation:
3x = 18
Here, "3x" represents the cost of "x" packs of stickers, and it is equal to $18.
To find the number of packs Isabella bought, we can solve the equation for "x".
Dividing both sides of the equation by 3, we get:
x = 18 / 3
x = 6
Therefore, Isabella bought 6 packs of stickers.
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The given information is that Isabella bought packs of stickers, each pack costs $3. She spent a total of $18 on stickers. It is asked to find number of packs did she buy.
Therefore, the answer for this question is that Isabella bought 6 packs of stickers.
Let the number of packs that Isabella bought be p. Each pack costs $3, so she spent a total of $18 on stickers. Using these terms, we can set up the equation:3p = 18To solve for p, we divide both sides of the equation by 3:p = 6. Therefore, the answer for this question is that Isabella bought 6 packs of stickers.
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help if link will report
Answer:
B
Step-by-step explanation:
Just put B
Sam and her brother Nate are collecting stamps together. Nate has collected 5 more than twice the number of stamps Sam has collected. In total they have 26 stamps. Let n be the number of stamps that Sam has collected. Which of the following equations models this situation?
1. 2n+5=26
2. n+2n+5=26
3. 2n+5-n=26
4. n+2(n+5)= 26
Answer:
2. n(2n+5)=26.
Step-by-step explanation:
If Sam has n stamps, and Nate has 5 more than twice that amount, the equation would be: 2. n(2n+5)=26.
You roll a single 6 sided die. What are the odds of rolling a 4?
A. 1/4
B. 4
C. 4/6
D. 1/6
what is the value of 8 3/5 + (-4 2/5) - 11 1/5
Answer:
Its right infront of you.....
1/5
Step-by-step explanation:
help ASAP ill mark brainliest, you dont need to explain the answer
Answer:
The first option.
Step-by-step explanation:
Add all the numbers together and voila you get 27
IF YOU TELL ME HOW YOU GOT THE ANSWER FIRST YOU WILL GET A CROWN
Answer:
C
Step-by-step explanation:
basically see where each dot is and the number its beside and the number its above answer for example the first one is in between 20 and 30 so its 25 and its above 1 so it would 1, 25 u just do that for all the dots :)
If a set of observations is normally distributed, what percent of these differ from the mean by (a) more than 2.50? (b) less than 0.56o?
The approximately 59.90 percent of the observations differ from the mean by less than 0.56o.
The standard deviation is a measure of the amount of variation or dispersion in a set of observations.
For a normal distribution, it is straightforward to determine the proportion of values that are more than a certain number of standard deviations above or below the mean.
Here's how to determine the percentage of observations that differ from the mean by more than 2.50 or less than 0.56o in a normally distributed set of observations.
Solution:
(a) The percentage of observations that differ from the mean by more than 2.50 is given by the formula below:P(Z > 2.50) + P(Z < -2.50) = 0.00621 + 0.00621 = 0.0124
To obtain the proportion in percentage, multiply by 100: 0.0124 * 100 = 1.24%.
Therefore, about 1.24 percent of the observations differ from the mean by more than 2.50.
(b) The proportion of observations that differ from the mean by less than 0.56o is given by:
P(-0.56/σ < Z < 0.56/σ) = P(Z < 0.84) − P(Z < -0.84) = 0.7995 - 0.2005 = 0.5990
To obtain the proportion in percentage, multiply by 100: 0.5990 * 100 = 59.90%.
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If a set of observations is normally distributed.
Therefore, about 0.62% of the observations differ from the mean by more than 2.50.
About 29.24% of the observations differ from the mean by less than 0.56.
Solution: (a) If a set of observations is normally distributed, then the percentage of observations that differ from the mean by more than 2.50 is given by:
This is calculated using the z-score formula: where x is the observation value, μ is the mean of the distribution, and σ is the standard deviation of the distribution. When we substitute the values of the given parameters, we get: Therefore, about 0.62% of the observations differ from the mean by more than 2.50.
(b) Similarly, the percentage of observations that differ from the mean by less than 0.56 is given by: This is calculated using the z-score formula: When we substitute the values of the given parameters, we get: Therefore, about 29.24% of the observations differ from the mean by less than 0.56.
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what is the:
axis of symmetry?
vertex?
Domain?
range?
x-intercepts?
y-intercept?
maximum or minimum?
Answer:
axis of symm: x = -1
vertex: (-1, -4)
domain: all real numbers
range: y ≥ -4
x-intercepts: 1, 3
y-intercept: -3
minimum at (-1, -4)
Step-by-step explanation:
Fitting a straight line to a set of data yields the following prediction line. Complete (a) through (c) below. } = 6 + 4x a. Interpret the meaning of the Y-intercept, bo. Choose the correct answer below. A. The Y-intercept, bo = 4, implies that when the value of X is the mean value of Y is 4. B. The Y-intercept, bo = 6, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 6 units C. The Y-intercept, bo = 6, implies that the average value of Y is 6. OD. The Y-intercept, bo = 6, implies that when the value of X is 0, the mean value of Y is 6. b. Interpret the meaning of the slope, by. Choose the correct answer below. A. The slope, by = 4, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 4 units. B. The slope, b4 = 4, implies that the average value of Y is 4. OC. The slope, by = 6, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 6 units. D. The slope, by = 4, implies that for each increase of 1 unit in X, the value of Y is expected to decrease by 4 units. c. Predict the mean value of Y for X = 4. ; = (Simplify your answer.)
(a) The Y-intercept, bo = 6, implies that when the value of X is 0, the mean value of Y is 6.
(b) The slope, by = 4, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 4 units.
(c) The mean value of Y for X = 4 is predicted to be 22.
The Y-intercept, bo, represents the starting point of the prediction line. In this case, when X is 0, the mean value of Y is expected to be 6. This implies that before any increase or decrease in X, the average value of Y starts at 6.
The slope, by = 4, indicates the rate at which Y is expected to change for each unit increase in X. Therefore, for every 1 unit increase in X, the value of Y is expected to increase by 4 units. This implies a linear relationship between X and Y, where the increase or decrease in X directly influences the corresponding change in Y.
To predict the mean value of Y for X = 4, we can use the prediction line equation: Y = 6 + 4x. Substituting X = 4 into the equation, we get: Y = 6 + 4(4) = 6 + 16 = 22. Therefore, the mean value of Y for X = 4 is predicted to be 22.
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