The given integral is:
∫ ∫ ( x) ×(8 × (√ x)) dx dy
By changing the order in which we integrate with respect to the variables x and y, we can rewrite this integral as an iterative integral of the other five orders. The other five commands are:
a. ∫ ∫ (√ x) ×(8 × (√t x)) dy dx
b. ∫ ∫ (8 × (√ x)) × (√ x) dx dy
c. ∫ ∫ (8 × (√ x)) × (√ x) dy dx
d. ∫ ∫ (√ x) × (√x) dx (8 × y)
e. ∫ ∫ (√ x) × (√ x) (8 * y) dx
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Add or subtract as indicated
(3 + 3i) - (3 + 21) + (1 + 4i)
а. 1+9i
B.-1+5i
C.-1-3i
D.1+5i
50 points pls help
Assume that the parcel starts its journey at 20ºC (lower left blank, 0 meters). Use the DAR (5C/500 meters) to calculate the decreasing temperature of the parcel up to and including the 1000-meter elevation.
The decreasing temperature of the parcel as it travels up the mountain, from 0–m to 1,000–m are;
20 °C, 25 °C, 30 °C
What is the Dry Adiabatic Lapse rate?The Dry Adiabatic Lapse Rate is the rate of change in temperature air which is unsaturated as it moves towards or away from a surface.
The given temperature of the parcel at an elevation of 0 meters = 20 °C
The Dry Adiabatic lapse Rate, DAR = (5°C/ 500–m)
The temperature, T, of the parcel at 1000–m is found as follows;
Using the DAR of 5°C/500–m, we have;
At 0–m, T = 20°CAt 500–m, T = 20°C - 500–m × (5°C/500–m) = 15°At 1000–m, T = 20°C - 1000–m × (5°C/500–m) = 10°Learn more about types of lapse rate here:
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Example 2: Use the Venn diagram to determine each set and the number of elements in each set.
helpppp
Using the Venn diagram, each set and the number of elements in each set are:
a. U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12}
b. A = {1, 3, 4, 5, 6, 8}
c. B = {4, 5, 6, 7, 9, 11}
d. C = {6, 8, 9, 12}
e. A ∪ B = {1, 3, 4, 5, 6, 7, 8, 9, 11}
f. A ∩ B = {4, 5, 6}
How to Use the Venn diagram to determine each set and the number of elements in each set?A Venn diagram is a pictorial representation used to visualize the relationships between different sets of objects or concepts.
a.) U is the universal set. This implies it contains all the elements in the set. Thus:
U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12}
b.) A is all element (number) is set A (circle A). Thus:
A = {1, 3, 4, 5, 6, 8}
c.) B is all element is set B (circle B). Thus:
B = {4, 5, 6, 7, 9, 11}
d.) C is all element is set C (circle C). Thus:
C = {6, 8, 9, 12}
e.) A ∪ B is all element is sets A and B (circles A and B). Thus:
A ∪ B = {1, 3, 4, 5, 6, 7, 8, 9, 11}
f.) A ∩ B is all element is sets A and B (circles A and B) have in common. Thus:
A ∩ B = {4, 5, 6}
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The diagram shows the height of a cone that holds ice cream. The cone has a volume of 4.5 π cubic inches. Which measurement is closest to the radius of the cone in inches?
On solving the query we can say that The slant height, along with the function cone's height and radius, makes a right triangle as it measures from the apex to a certain point on the circular base.
what is function?Mathematics is concerned with numbers and their variations, equations and related structures, shapes and their places, and possible placements for them. The relationship between a collection of inputs, each of which has an associated output, is referred to as a "function". An relationship between inputs and outputs, where each input yields a single, distinct output, is called a function. Each function has a domain and a codomain, often known as a scope. The letter f is frequently used to represent functions (x). X is the input. The four main types of functions that are offered are on functions, one-to-one functions, many-to-one functions, within functions, and on functions.
You are informed that the cone in this scenario has a volume of 4.5 cubic inches. Using the aforementioned calculation, you can determine the radius if you know the cone's height.
Alternately, you may use the Pythagorean theorem to calculate for the radius if you know the cone's slant height. The slant height, along with the cone's height and radius, makes a right triangle as it measures from the apex to a certain point on the circular base.
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Triangle A and B are similar. Triangle A is shown below. The shortest side of triangle B is 10cm. What is the length of the other two sides?
Using the concept of similar triangles, the length of the other two sides of triangle B are: 20 cm and 25 cm
How to find the lengths of similar triangles?Similar triangles are defined as triangles that possess the same shape, but then their sizes may very well vary. This means that, if two triangles are similar, then we can say that their corresponding angles are congruent and corresponding sides are in equal proportion.
Since the shortest side of triangle B is 10cm, it means that it corresponds to the shortest side of triangle A which is 8 cm.
Thus:
Ratio of corresponding sides of B:A = 10/8
Thus:
Second side of triangle B: (10/8) = (x/16)
x = 160/8
x = 20 cm
Third side of triangle B: 10/8 = y/20
y = 200/8
y = 25 cm
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What is the slope of the line with equation y-3=-1/2(x-2)?
Answer:
The answer is m = -1/2
Step-by-step explanation:
You buy 4 cases of bottled water and 5 bottles of fruit punch for a birthday party. Each case of bottled water cost $2.75, and each bottle of fruit punch coast $1.35. You hand the cashier a $20 bill. How much change will you receive? Hurry! It’s do today!
Answer:
$2.25
Step-by-step explanation:
Change
= $20 - total price of the items bought
Total price of bottled water
= 4($2.75)
= $11
Total price of fruit punch
= 5($1.35)
= $6.75
Change
= $20 -($11 +$6.75)
= $20 -$17.75
= $2.25
Triangle ABC contains two angles that measure 56 and 47 degrees each. Triangle DEF also contains two angles that measure 56 and 47 degrees. The measure of the third angles of both triangles must be _____ degrees
Answer:
77 degreesStep-by-step explanation:
According to the triangle angle sum theorem, interior angles sum to 180 degrees:
x + 56 + 47 = 180x + 103 = 180x = 180 - 103x = 77Answer: Equal/same which is 77 degrees
Explanation: This is because if two of the angles of the triangles are same then the third angle will also be the same. This can be showed by a proof like:
You know that the sum of a triangle's angles are 180 degrees. So If you add 56+47 the remaining angle value is same for both triangle ABC and DEF. The remaining angle is 77 degrees.
Solve for x 1/5x − 2= 4
Answer:
here ya go :)
Step-by-step explanation:
The lifespans of gorillas in a particular zoo are normally distributed. The average gorilla lives 16 years; the standard deviation is 1.7 years. Use the empirical rule (68−95−99.7%) to estimate the probability of a gorilla living between 14.3 and 19.4 years.
The probability that a gorilla in this particular zoo will live between 14.3 and 19.4 years is 86% (or 0.86)
Understanding Normal DistributionFrom the Empirical Rule, for a Normal Distribution, approximately:
68% of the data falls within one standard deviation of the mean
95% of the data falls within two standard deviations of the mean
99.7% of the data falls within three standard deviations of the mean
To estimate the probability of a gorilla living between 14.3 and 19.4 years, we first need to standardize these values by subtracting the mean and dividing by the standard deviation:
For 14.3 years: (14.3 - 16) / 1.7 = -1.18
For 19.4 years: (19.4 - 16) / 1.7 = 2
Now we can use a standard normal distribution table to find the probabilities associated with these z-scores:
The probability of a gorilla living less than 14.3 years is approximately the same as the probability of a standard normal variable being less than -1.18, which is about 0.12.
The probability of a gorilla living less than 19.4 years is approximately the same as the probability of a standard normal variable being less than 2, which is about 0.98.
Therefore, the probability of a gorilla living between 14.3 and 19.4 years is approximately the difference between these two probabilities: 0.98 - 0.12 = 0.86.
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Brian will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $44 and costs an additional $0.10 per mile driven. The second plan has an initial fee of $49 and costs an additional $0.08 per mile driven.
For what amount of driving do the two plans cost the same? _ miles
What is the cost when two plans cost the same? $_
Answer:
250 miles
69 dollars
Step-by-step explanation:
Plan 1
44+.10m
Plan 2
49 +.08m
Set the two plans equal
44+.10m = 49 +.08m
Subtract .08m from each side
44+.10m - .08m = 49 +.08m-.08m
44+.02m = 49
Subtract 44 from each side
44 +.02m-44 = 49-44
.02m = 5
Divide each side by .02
.02m/.02 = 5/.02
m = 250
The cost is 44 +.10(250)
44 +25
69
Write an equation that represents the line. Use exact numbers.
Answer:
y = \(\frac{3}{4}\) x - \(\frac{9}{2}\)
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
calculate m using the slope formula
m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)
with (x₁, y₁ ) = (- 2, - 6) and (x₂, y₂ ) = (2, - 3) ← 2 points on the line
m = \(\frac{-3-(-6)}{2-(-2)}\) = \(\frac{-3+6}{2+2}\) = \(\frac{3}{4}\) , then
y = \(\frac{3}{4}\) x + c ← is the partial equation
to find c substitute either of the 2 points into the partial equation
using (2, - 3 )
- 3 = \(\frac{3}{4}\) (2) + c = \(\frac{3}{2}\) + c ( subtract \(\frac{3}{2}\) from both sides )
- 3 - \(\frac{3}{2}\) + c , then
c = - \(\frac{9}{2}\)
y = \(\frac{3}{4}\) x - \(\frac{9}{2}\) ← equation of line
-14x+y=7 in slope intercept form
y = 14x +7
Step-by-step explanation:
-14x+y=7
+14x +14x
y=14x+7
Find the slope of this problem
Answer:
1/9 rise 1 run 9
Step-by-step explanation:
if you graph the y coordinate as 3 and find the x value, x value should be 0. Point (0,3) and (-9,2) and do rise over run
Need help with math points and brainlest
Answer:
Step-by-step explanation:
Write a numerical expression for the word expression. 100 decreased by 77
Answer:
100-77
Step-by-step explanation:
3/7r + 5/8s when r = 14 and s = 8
Answer:
11
Step-by-step explanation:
3/7r + 5/8s when r = 14 and s = 8
3/7r + 5/8s
3/7(14) + 5/8 (8)
6 + 5 = 11
If -9x(x + A) + 2 = (Bx + 2)(3x - 1) + 4, find the constants A and B.I am stuck at the step of solving B,can you help me?write down you steps and answer please
Answer:
A = -1
B = -3
Step-by-step explanation:
you need to do all the multiplication on both sides and then simply compare the factors of the various powers of x.
so,
-9x² - 9×A×x + 2 = 3×B×x² + 6x -Bx - 2 + 4
-9x² - 9×A×x + 2 = 3×B×x² + (6-B)x + 2
the x-less constants 2 = 2 are correct. now we need to compare the factors for the other parts of x.
we have left and right only one expression of x²
-9x² on the left
3×B×x² on the right
therefore,
-9 = 3×B
=> B = -3
otherwise the equation would not be correct for all values of x.
the only other parts remaining are
-9×A×x = (6-B)x = (6 - -3)x = (6+3)x = 9x
=>
-9×A = 9
-A = 1
A = -1
remember, all parts of the left and of the right side must be equal for the equation to be true in all cases.
Jack works eight hours each day. He is paid £6.50 per hour. He shares his wages with Kim in the ratio Jack : Kim = 4 : 1 Jack saves his share. How many working days will it take Jack to save £1040?
Answer:
25 days
Step-by-step explanation:
6.50 x 8 = 52
52 ÷ 5 = 10.4
10.4 × 4 = 41.6
1040 ÷ 41.6 = 25
What is the area of a rectangle with a length of 7 feet and a width of 3 ¾ feet?
Answer:
105/4 ft^2
Step-by-step explanation:
Multiply length and width: 7*15/4 = 105/4 ft^2
I need help with this PLEASE!!!
Answer:
See the image for marked congruences.
1. JM ≅ LM | Given
2. △JML is isosceles | definition of isosceles
3. ∠MJL ≅ ∠MLJ | isosceles triangle theorem
4. m∠MJL = m∠MLJ | definition of ≅
5. JK ≅ LK | Given
6. △JKL is isosceles | definition of isosceles
7. m∠KJL = m∠KLJ | isosceles triangle theorem
8. m∠MJL + m∠KJM = m∠KJL | adjacent angle theorem
9. m∠MLJ + m∠KMJ = m∠KLJ | adjacent angle theorem
10. m∠MJL + m∠KJM = m∠MLJ + m∠KLM | transitive property of =
11. m∠MJL + m∠KJM = m∠MJL + m∠KLM | substitution
12. m∠KJM = m∠KMJ | subtraction
13. ∠KJM ≅ ∠KLM | definition of ≅
14. △KJM ≅ △KLM | SAS theorem
15. ∠JKM ≅ ∠LKM | CPCTC
16. KM bisects ∠JKL | definition of bisector
Frankie argues that the fraction 20 is a rational number because the square root of 20 is 10. Frankie believes that because 10 is a whole number, it is rational
Alejandro disagrees. He believes that 20 is a rational number because the square root falls between 4 and 5, and the decimal terminates.
statement RFST describes who is correct?
Answer:
Step-by-step explanation:
The square root of 20 is √(2 * 2 * 5) which is 2√5 Not so
√5 does not terminate and there is no pattern to the decimal. √5 is irrational.
Neither one is correct.
When observing a performance or movement pattern, you should break down the complex skills into which of the following:
A. Stylistic parts
B. none of these
LC. Component parts
D. Tactical parts
When observing a performance or movement pattern, you should break down the complex skills into component parts.
What are complex skills?Complex skills are skills that are composed of many parts. This makes it difficult to engage in these sort of skills without a rigorous training.
Thus, when observing a performance or movement pattern, you should break down the complex skills into component parts.
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Audrey went shopping and bought two pairs of
jeans for $16.95 each, a shirt for $16.75, and a
belt for $9.50. If she paid for the purchases with
a $100 bill, how much change should she get?
The change that she should get in return will be $39.85.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
Audrey went shopping and bought two pairs of jeans for $16.95 each, a shirt for $16.75, and a belt for $9.50. If she paid for the purchases with a $100 bill.
Then the change that she should get will be given as,
Change = $100 - 2 × $16.95 - $16.75 - $9.50
Change = $100 - $33.90 - $16.75 - $9.50
Change = $100 - $60.15
Change = $39.85
The change that she should get in return will be $39.85.
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Which insect measurement was the most frequent?
Length of insects (in inches)
The insect measurement that was the most frequent is given as follows:
1 and 1/4 inches.
How to obtain the most frequent insect measurement?A dot plot is a simple graphical display that uses dots to represent data values. It is also sometimes called a dot chart or a scatterplot. In a dot plot, each data point is represented by a dot along a number line or axis, where the position of the dot corresponds to the value of the data point.
Hence, a dot plot shows the number of times that each observation appeared in the data-set.
The observation with the most dots is the observation 2/8 of the way between 1 and 2, hence the most frequent observation is given by the following mixed number:
1 and 2/8 = 1 and 1/4 inches.
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Which of the following best describes a function? A function is any mathematical formula or graph. A function is any mathematical rule. A function is a formula that involves variables. A function is a rule that for each input has at most one output.
A function is a rule that for each input has at most one output.
Describe a function. A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output.
Each function has a range, codomain, and domain. The usual way to refer to a function is as f(x), where x is the input. A function is typically represented as y = f. (x).
In mathematics, a function is a unique arrangement of the inputs (the domain) and their outputs (the codomain), where each input has exactly one output and the output can be traced back to the original input.
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let's see who can solve this. pleseeee
The correlation coefficient between X and Y is Corr(X, Y) = 0.
To calculate the marginal distribution of X and Y, we need to integrate the joint probability density function (PDF) over the appropriate ranges.
a. Marginal distribution of X:
To find the marginal distribution of X, we integrate the joint PDF over the range of Y:
∫[0, 1] J(x, y) dy
Since the joint PDF is defined as J(x, y) = 1 for 0 ≤ y ≤ x ≤ 1 and J(x, y) = 0 otherwise, the integral becomes:
∫[0, x] 1 dy = x, for 0 ≤ x ≤ 1
So, the marginal distribution of X is simply X(x) = x for 0 ≤ x ≤ 1.
b. Expectation of X:
The expectation (mean) of X can be calculated as the integral of x times the marginal PDF of X:
\(E(X) = ∫[0, 1] x * X(x) dx = ∫[0, 1] x^2 dx = [x^3/3] from 0 to 1 = 1/3\)
Therefore, the expectation of X is E(X) = 1/3.
c. Variance of X:
The variance of X can be calculated using the formula:
\(Var(X) = E(X^2) - (E(X))^2E(X^2) = ∫[0, 1] x^2 * X(x) dx = ∫[0, 1] x^3 dx = [x^4/4] from 0 to 1 = 1/4Var(X) = 1/4 - (1/3)^2 = 1/4 - 1/9 = 5/36\)
Therefore, the variance of X is Var(X) = 5/36.
d. Covariance of X and Y:
The covariance of X and Y can be calculated as:
Cov(X, Y) = E(XY) - E(X)E(Y)
Since the joint PDF J(x, y) = 1 for 0 ≤ y ≤ x ≤ 1, the integral becomes:
\(E(XY) = ∫[0, 1] ∫[0, x] xy dy dx = ∫[0, 1] [(x^2)/2] dx = [(x^3)/6] from 0 to 1 = 1/6\)
\(E(X) = 1/3 (from part b)E(Y) = ∫[0, 1] ∫[0, x] y J(x, y) dy dx = ∫[0, 1] [(x^2)/2] dx = [(x^3)/6] from 0 to 1 = 1/6\)
Cov(X, Y) = 1/6 - (1/3)(1/6) = 0
Therefore, the covariance of X and Y is Cov(X, Y) = 0.
e. Correlation coefficient between X and Y:
The correlation coefficient can be calculated using the formula:
Corr(X, Y) = Cov(X, Y) / √(Var(X) * Var(Y))
Since the covariance of X and Y is 0, the correlation coefficient will also be 0.
Therefore, the correlation coefficient between X and Y is Corr(X, Y) = 0.
f. Conclusion based on the correlation coefficient:
The correlation coefficient of 0 indicates that there is no linear relationship between X and Y. In this case, the fraction of male runners (X) and the
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The graph of y = f(x) is shown.
a) Give the coordinates of the
turning point of the graph.
b) Find the roots of f(x) = 0
Note: Please use a comma between your answers.
c) Find f(0)
-3
-2
4
3-
2-
O
-1-
-2-
-~
2
COL
3
X
s+
Answer:
a) (1,4), b) -1 and 3, c) 3
Step-by-step explanation:
a) coordinates of turning point are the peak of the graph. this occurs at (1,4),
b) f(x) = 0 means where the graph meets x-axis. it meets x-axis at x = -1 and x =3,
c) f(0) means where the graph crosses the y-axis. it crosses at y = 3
Ok this is an easy one.
-1.5 multiplied by what will get me -1?
PLEASE HELP ASAP
Apostolis is making a beaded dress to enter in
a design competition. He must buy the beads to
fulfill the pattern, but he can spend no more than
$125 of this part of the project. Packages of blue
beads contain 10 beads per package and cost $0.85
whereas the packages of yellow beads contain
15 beads per package and cost $1.15 per package.
Apostolis needs at least 425 beads. If b represents
the number of blue beads and y represents the
number of yellow beads, which of the following
systems best describes these constraints?
I have been trying to solve and I just can’t figure it out yet, my answer is B or A bug I’m not quite to sure
Answer:
okok so the anwser is 1+1
Step-by-step explanation:
1 and add another is 2
boom.
:)