Answer:
16x⁸y²
Step-by-step explanation:
Answer:
16x^8y^2
Step-by-step explanation:
what you do is simplify the expression
If one diagonal is 12 inches long and the other is 32 inches long, how many inches long, to the nearest hundredth of an inch, is a side of the rhombus
Answer:
17.09 inch
Step-by-step explanation:
Given that:
A rhombus with diagonals of length 12 inches and 32 inches.
To find:
The length of rhombus to the nearest hundredth of an inch.
Solution:
First of all, we need to learn about the property of a rhombus, its sides and its diagonals.
The diagonals of a rhombus intersect each other by bisecting each other and are perpendicular to each other.
And all the sides
Kindly refer to the attached image for the given dimensions.
Now, there are four right angled triangles in which we can use Pythagorean theorem to find hypotenuse which is nothing but the side of rhombus.
According to Pythagorean theorem:
\(\text{Hypotenuse}^{2} = \text{Base}^{2} + \text{Perpendicular}^{2}\\\Rightarrow Side^{2} = 6^{2} + 16^{2}\\\Rightarrow Side^{2} = 292\\\Rightarrow Side \approx \bold{17.09\ inch}\)
Suppose X is random variable, a and b are constants. Use the definition to prove:Var(aX+b)=a2Var(X)
The statement "Var(aX+b) = \(a^{2}\)Var(X)" has been proved by using the definition of variance.
The variance of a random variable X measures the spread or variability of its values. Using the definition of variance, we can prove that the variance of aX+b, where a and b are constants, is equal to \(a^{2}\) times the variance of X."
To prove the statement, let's start by calculating the variance of aX+b. The variance of a random variable Y is defined as Var(Y) \(= E[(Y - E(Y))^{2}]\), where E(Y) is the expected value of Y.
Using this definition, we have Var(aX+b) \(= E[(aX+b - E(aX+b))^2]\).
Now, simplifying this expression. We know that E(aX+b) = aE(X) + b, as the expected value of a constant times a random variable is equal to the constant times the expected value of the random variable.
Expanding the squared term, we get Var(aX+b) \(= E[(aX+b - aE(X) - b)^{2}]\).
Simplifying further, we have Var(aX+b) = \(E[(a(X - E(X)))^2]\).
Notice that (X - E(X)) is equivalent to X - E(X), as a constant (a) can be factored out.
Now, applying the property of linearity of expectation, we have Var(aX+b) \(= E[a^{2}(X - E(X))^2]\).
Again, using the definition of variance, this can be written as
Var(aX+b) \(= a^{2}E[(X - E(X))^2] = a^{2}Var(X)\)
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Using the data in GPA2. RAW on 4,137 college students, the following equation was estimated by OLS:
colgpa 1. 392. 0135 hsperc. 00148 sat n 4,137, R2. 273,
where colgpa is measured on a four-point scale, hsperc is the percentile in the high school graduating class (defined so that, for exam
A difference of 336.49 SAT points is predicted to lead to a colgpa difference of 50.
What is coefficient?A coefficient is a numerical value that represents the degree of association or effect of one variable on another.
(i) It makes sense for the coefficient on hsperc to be negative because as hsperc increases, there is a smaller percentage of students who perform better than the individual. Therefore, higher hsperc is associated with lower colgpa.
(ii) When hsperc = 20 and sat = 1,050, the predicted college GPA can be calculated by plugging in the values into the equation:
colgpa = 1.392 - .0135(20) + .00148(1,050) = 1.120
(iii) Holding hsperc constant, the predicted difference in college GPA for two students with SAT scores that differ by 140 points is:
∆colgpa = .00148(140) = .2072
Therefore, the predicted difference in college GPA is about .21 grade points, which can be considered a moderate difference.
(iv) To find the difference in SAT scores that leads to a predicted colgpa difference of .50, we can set up the equation as follows:
.50 = .00148(x)
where x is the difference in SAT scores. Solving for x, we get:
x = 336.49
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−3(0.75x−2y)+6(0.5x−2y) ?
10a = 40
pls help i cant do this and i’ve been trying to figure this out for 20 min now send help pls
Pupils in a class were asked how they travel to school. The results were
recorded in the table below.
Car
13
Bus
6
Train
5
Walk
8
If a pupil in the class was picked at random, what is the probability
that one of them walked to school as a percentage?
what is the number of the parking space 16, 06, 68
The number formed by the digits 16, 06, and 68 is 160668, which is determined by concatenating them in the given order.
To determine the number formed by the given digits, we concatenate them in the given order. Starting with the first digit, we have 16. The next digit is 06, and finally, we have 68. By combining these three digits in order, we get the number 160668.
When concatenating the digits, the position of each digit is crucial. The placement of the digits determines the resulting number. In this case, the digits are arranged as 16, 06, and 68, and when they are concatenated, we obtain the number 160668. It's important to note that the leading zero in the digit 06 does not affect the value of the resulting number. When combining the digits, the leading zero is preserved as part of the number.
Therefore, the number formed by the digits 16, 06, and 68 is 160668.
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solve the problem shown above^^
Answer:
Step-by-step explanation:
Since the lengths of the shelves are given in cm and the answer is to be expressed in cm, then let's convert the length of the whole board from 2.5 m to cm. Since there are 100 cm in a m, then multiply 2.5 by 100 to get 250 cm. Now let's start with the expressions for the shelves. The lengths of all the shelves are based on the length of the first shelf. You can usually tell which object is the main one because it is mentioned the most number of times. The first shelf is mentioned 3 times so that is the main shelf that the measurements of all the other shelves are based upon. Let's call the first shelf x. The second shelf is 18 cm longer than twice the length of the first so the second shelf is 2x + 18.
The third shelf is 12 cm shorter than the first so the third shelf is x - 12.
The last shelf is 4 cm longer than the first shelf so the last shelf is x + 4. Since he needs to use all 250 cm of the board, we add all the shelves together and set them equal to 250 cm:
x + 2x + 18 + x - 12 + x + 4 = 250 and
5x + 10 = 250 and
5x = 240 so
x = 48. The first shelf is 48 cm long. But we need the length of the second shelf. The expression for the second shelf is 2x + 18, so 2(48) + 18 = 114 cm.
simplify the given rational expression: x-2 x²-4
Answer: 1/(x+2)Step-by-step explanation:=(x-2)(1)/(x-2)(x+2) cancel (x-2)=1/(x+2)
Step-by-step explanation:
What is the approximate length of the track in miles
Explanation
Opposite sides are 5 miles each and for each semicircle we have:
\(\frac{2\pi *\frac{1}{2}}{2}=\frac{\pi}{2}\text{ miles}\)Then the lenght of the track is:
\(5+5+\frac{\pi}{2}+\frac{\pi}{2}=10+\pi\)Approximately 13.1416 miles
A triangle with base 6.2 cm and height 4.8 cm
Answer:
14.88
A = \(\frac{h_bb}{2}\)
= 4.8 × 6.2 / 2
= 14.88
what are the base units for length mass and volume
The International System of Units (SI) is the modern form of the metric system and is the world's most widely used measurement system. It defines seven base units for measuring physical quantities, from which all other SI units can be derived. The three fundamental base units for length, mass, and volume are as follows:
Length: The base unit for length in the SI system is the meter (m). It is defined as the distance traveled by light in a vacuum during a time interval of 1/299,792,458 of a second. The meter is used to measure distances ranging from the size of atoms to astronomical distances.
Mass: The base unit for mass in the SI system is the kilogram (kg). It is defined as the mass of a particular cylinder of platinum-iridium alloy that is kept at the International Bureau of Weights and Measures in France. The kilogram is used to measure the mass of objects ranging from subatomic particles to planets.
Volume: The base unit for volume in the SI system is the cubic meter (m³). It is defined as the volume occupied by a cube with edges of one meter in length. The cubic meter is used to measure volumes ranging from the size of molecules to large bodies of water.
Other derived units for length, mass, and volume include centimeters, millimeters, grams, liters, and cubic centimeters. These units are commonly used in everyday life and scientific research.
In conclusion, the base units for length, mass, and volume in the SI system are meter, kilogram, and cubic meter respectively. These units provide a standardized and internationally recognized system for measuring physical quantities.
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como
Si al dinero que tengo le sumo el doble de lo que tengo y le resto $4000
equivale a $11000. ¿Cuántotengo?
ar
ca
O a. 6000
O b. 5000
O C. 2000
O d. 4000
x
Answer:
D
Step-by-step explanation:
My gut tells me D because I don't understand your language
Which one of the following would be most helpful in strengthening the content validity of a test?
A. Administering a new test and an established test to the same group of students.
B. Calculating the correlation coefficient.
C. Calculating the reliability index.
D. Asking subject matter experts to rate each item in a test.
Asking subject matter experts to rate each item in a test would be most helpful in strengthening the content validity of a test
Asking subject matter experts to rate each item in a test would be most helpful in strengthening the content validity of a test. Content validity refers to the extent to which a test accurately measures the specific content or domain it is intended to assess. By involving subject matter experts, who are knowledgeable and experienced in the domain being tested, in the evaluation of each test item, we can gather expert opinions on the relevance, representativeness, and alignment of the items with the intended content. Their input can help ensure that the items are appropriate and adequately cover the content area being assessed, thus enhancing the content validity of the test.
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simplify 6-12b divided by 3a-6ab
Answer:
\(\frac{2}{a}\)
Step-by-step explanation:
Given
\(\frac{6-12b}{3a-6ab}\) ← factor both numerator and denominator
= \(\frac{6(1-2b)}{3a(1-2b)}\) ← cancel common factor (1 - 2b) on numerator/denominator
= \(\frac{6}{3a}\) ← cancel 6 and 3 by 3
= \(\frac{2}{a}\)
What is the greatest common factor of −15x2y − 10xy3 5xy4? 5xy 5x2y4 5xy2 xy
the greatest common factor of the given expressions is -5xy.
To find the greatest common factor of the given expressions, we need to factor them first.
\(-15x^2y - 10xy^3 + 5xy^4 = -5xy(3x^2 + 2y^2 - y^3)\\5xy = 5xy(1)\\5x^2y^4 = 5xy^4(x^2)\\5xy^2 = 5xy^2(1)\)
xy = xy(1)
Now, we can find the common factors by taking the minimum exponent of each variable in the factors:
The common factors are:5xy
Therefore, the greatest common factor of the given expressions is -5xy.
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please help i’ll give brainliest
Answer:
range
Step-by-step explanation:
*JUST AND EDUCATED GUESS* but id say range
7) What does a multiplier of \( 1.2 \) mean?
A multiplier of 1.2 means the value is multiplied or increased by a factor of 1.2.
A multiplier is a term used to represent a factor by which a value is multiplied or increased. It is a numeric value that indicates the extent of the increase or expansion of a given quantity. Multiplication by a multiplier results in scaling or changing the magnitude of the original value.
A multiplier of 1.2 indicates that a value will be increased by 20% or multiplied by a factor of 1.2. This means that when the multiplier is applied to the original value, the resulting value will be 1.2 times the original.
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Jennifer went to a farm and bought tomatoes
for $2 per pound and garlic for $3 per pound.
If Jennifer spent $72 on tomatoes and garlic,
how many pounds can she buy if she buys
only garlic?
Answer:
24 pounds of garlic
Step-by-step explanation:
if she spends 3$ per pound, you divide 72 by 3. the answer to that is 24, so if she spends 72 dollars on only garlic, she can buy 24 pounds.
Jennifer can buy 24 pounds of garlic
we see here, that if she spends 3$ per pound, you divide 72 by 3.
The answer would be 24, so if she spends 72 dollars on only garlic,
she can buy 24 pounds.
What is a pound defined as?1: any of various units of mass and weight specifically: a unit now in general use among English-speaking peoples equal to 16 avoirdupois ounces or 7000 grains or 0.4536 kilogram — see Weights and Measures Table
2: the basic monetary unit of the United Kingdom.
What is a division example?In maths, a division is a process of splitting a specific amount into equal parts. For example, we can divide a group of 20 members into 4 groups of 5 members each or 5 groups of 4 members each
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rewrite the equation in standard form y = - 3/4 x - 6
Answer:
Step-by-step explanation:
\(y =\dfrac{-3}{4}x -6\)
Multiply the entire equation by 4,
\(4*y=\dfrac{-3}{4}x*4 - 6*4\\\)
4y = -3x - 24
Add 3x to both sides
3x + 4y = -24
Add 24 to both sides
3x + 4y + 24 = 0
In ABC, BAC=96•8°,AC= 12•4cm and BC=15•6cm. Find
i) ABC,
ii) BCA,
iii) the length of AB,
In the triangle ABC, i) ABC = 52.12° ii) BCA = 31.08° and iii) AB = 8.11cm.
Based on the provided information, ∠ BAC = 96.8°; AC = 12.4cm, and BC = 15.6cm
i) According to the law of sine,
Sin ∠A/a = Sin ∠B/b = Sin ∠C/c where a is the length opposite to ∠A, and so forth.
Hence, based on the information, ∠ABC = ∠B
Sin ∠B/AC = Sin ∠A/BC
Sin ∠B/12.4 = Sin 96.8/15.5
Sin ∠B = (Sin 96.8/15.5)*12.4
∠B = Sin^-1((Sin 96.8/15.5)*12.4)
∠B = 52.12°
ii) As the sum of interior angles of a triangle is 180°. ∠As BCA = ∠C
∠A + ∠B + ∠C = 180
96.8 + 52.12 + ∠C = 180
∠C = 31.08
iii) According to the law of cosine,
c^2 = a^2 + b^2 – 2ab cos C where C is the angle opposite to c.
BC^2 = AB^2 + AC^2 – 2(AB)(AC)cos98.6
15.6^2 = AB^2 + 12.4^2 – 2(AB)(12.4)cos98.6
Solving for AB,
AB = 8.11cm
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Find the point of inflection of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = 10 csc 3x 2 , (0, 2π) (x, y) = Describe the concavity. (Enter your answers using interval notation. If an answer does not exist, enter DNE.) concave upward concave downward
The point of inflection of the graph of the function f(x) = 10csc(3x/2) in the interval (0, 2π) does not exist. The concavity of the graph cannot be determined.
To find the point of inflection of a function, we need to determine where the concavity changes. This occurs when the second derivative changes sign.
First, let's find the second derivative of f(x). The first derivative is found using the chain rule and is given by:
f'(x) = -30csc(3x/2)cot(3x/2).
Differentiating f'(x) with respect to x, we obtain the second derivative:
f''(x) = 90csc(3x/2)cot(3x/2)^2 - 30csc(3x/2)csc(3x/2)cot(3x/2).
To find the point of inflection, we need to solve the equation f''(x) = 0. However, the equation does not have any real solutions in the interval (0, 2π). Therefore, the point of inflection does not exist for this function in the given interval.
Since the point of inflection does not exist, the concavity of the graph of f(x) cannot be determined.
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please answer the question fast and step by step please
Answer:
Quotient:3x²+x+4
Reminder:19
Step-by-step explanation:
Pls mark as brainliest
Clayton's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 8 espressos in all, 50% of which were single-shot. How many single-shot espressos did the cafe sell?
Answer: If 50% of the 8 espressos sold were single-shot, that means the other 50% must have been double-shot.
To find out how many single-shot espressos were sold, we can calculate 50% of 8, which is:
0.5 x 8 = 4
So the cafe sold 4 single-shot espressos.
To find out how many double-shot espressos were sold, we can calculate the other 50% of 8, which is also 4.
Therefore, the cafe sold 4 single-shot espressos and 4 double-shot espressos in total.
Step-by-step explanation:
Using the numbers -4, 10, 8, 2, -3, -5, create an expressions that equals to 6.
Answer:
10+(-4)=6
Step-by-step explanation:
Answer:
-4 + 10
Step-by-step explanation:
Most global organizations consider maintaining stable cash flows an important factor critical to success. however, is there a difference among north american, european, and asian organizations in the proportion of organizations that raised prices in response to unfavourable exchange rates that increased costs to their business operations? a random sample of 150 north american organizations, 120 european organizations, and 100 asian organizations was surveyed. they were asked to indicate if they raised prices in response to unfavourable exchange rates that increased costs to their business operations. the study showed that 70 north american organizations, 65 european organizations, and 30 asian organizations raised prices in response to unfavourable exchange rates that increased costs to their business operations.
Based on the study results, there appears to be a difference among North American, European, and Asian organizations in the proportion of organizations that raised prices in response to unfavourable exchange rates.
Out of the surveyed sample, 46.67% of North American organizations (70 out of 150) raised prices, while 54.17% of European organizations (65 out of 120) and 30% of Asian organizations (30 out of 100) raised prices. Therefore, it can be concluded that a higher proportion of European organizations raised prices compared to North American organizations, while Asian organizations had the lowest proportion.
However, it is important to note that this study only represents a sample of organizations and may not necessarily reflect the entire population of each region.
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How to plot 69, 88,94,73,78,90, and 68 in a box and whisker plot (ASAP) also find the 5 part summary
The five-number summary for the dataset are Minimum: 68, Q1: 69, Median: 78, Q3: 90 and Maximum: 94.
To create a box and whisker plot for the given dataset {69, 88, 94, 73, 78, 90, 68}, follow these steps:
Step 1: Arrange the data in ascending order:
68, 69, 73, 78, 88, 90, 94
Step 2: Find the five-number summary:
Minimum: The smallest value in the dataset, which is 68.
First quartile (Q1): The median of the lower half of the dataset. In this case, it's the median of {68, 69, 73}, which is 69.
Median (Q2): The middle value of the dataset. In this case, it's 78.
Third quartile (Q3): The median of the upper half of the dataset. In this case, it's the median of {88, 90, 94}, which is 90.
Maximum: The largest value in the dataset, which is 94.
Step 3: Create the box and whisker plot:
Draw a number line with a range from the minimum (68) to the maximum (94).
Mark the first quartile (Q1) at 69.
Mark the median (Q2) at 78.
Mark the third quartile (Q3) at 90.
Draw a box from Q1 to Q3.
Draw a vertical line (whisker) from the box to the minimum (68) and another vertical line from the box to the maximum (94).
The resulting box and whisker plot for the given dataset would look like this:
|
94| ▄
| ╱ ╲
90| ╱ ╲
| ╱ ╲
88| ▇ ▂
| ▇ ▂
78| ▇ ▂
| ▇ ▂
73| ╱ ╲
| ╱ ╲
69| ▃ ▃
| ╱ ╲
68| ╱ ╲
|_________________________________
68 73 78 88 94
This plot represents the distribution of the given dataset, showing the minimum, maximum, first quartile (Q1), median (Q2), and third quartile (Q3).
The five-number summary for the dataset are Minimum: 68, Q1: 69, Median: 78, Q3: 90 and Maximum: 94.
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select the greatest amount A.1 cup B.1 quart. C.1 gallon
1 gallon = 4 quarts = 8 pints = 16 cups = 128 fluid ounces
- 5x15x + 12x - 4x I don’t know how to solve this
Answer:
Step-by-step explanation:
Multiply the numbers:
-5x*15x + 12x - 4x.
Which should get you: -75xx + 12x - 4x
Then combine exponents : -75xx + 12x - 4 = -75x^2 + 12x - 4x
Combine like terms: -75x^2 + 8x
Then find common factor with is -1
Lastly, rewrite in factored form : -1(75x^2 + 8x) = -1(75x - 8)x
Solve for the positive value of x: logx256=4
the x is bellow log not next to it please help
Answer:
x = 4
Step-by-step explanation:
Knowing that:
\( log_{a}(x) = b\)
Is equal to
\(x = a {}^{b} \)
And knowing that:
\( log_{x}(256) = 4\)
\(x {}^{4} = 256\)
Solve by finding the x using the fourth root
\( \sqrt[4]{ {x}^{4} } = \sqrt[4]{256} \)
That is equal to
\(x = 4\)