Answer:
40.5
Step-by-step explanation:
We need to find the area of both triangle and square. We then subtract the triangle from the square. Let's do it.
The area of the square is 9x9. This is 81 squared meters.
Triangle formula is 1/2 base x height. We know that base and height are both 9. 81/2 is 40.5.
We subtract now. 81-40.5=40.5
40.5 is the area of the shaded region.
Answer:
40.5 square meters
Step-by-step explanation:
to find area of shaded region:
area of square minus area of triangle
A(square) = 9² or 81
A(triangle) = 1/2(9)(9) = 40.5
81 - 40.5 = 40.5
Determine the fundamental period of the following signal. Explain your steps in details. x[n]=8+cos(8πn/17)
Given signalx[n]= 8 + cos(8πn/17)The given signal is a sum of a constant and a cosine signal. The cosine signal is periodic with a period of 17, and a frequency of 8π/17 rad/sample.
To find the fundamental period of the given signal we need to consider both the constant and the cosine signal. Period of constant signal = ∞ Period of cosine signal = 2π/((8/17)π) = 17/4 samples. Now, we need to find the least common multiple (LCM) of the two periods, which will give us the fundamental period.
LCM (17/4, ∞) = 17/4 × 2 = 34/4 = 8.5The fundamental period of the given signal is 8.5 samples. Now, we need to find the least common multiple (LCM) of the two periods, which will give us the fundamental period.
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The value of 5 × (7 + 3)2 ÷ 4 this expression is
PLEASE HELP
Answer: 25
Step-by-step explanation:
Pitágoras filósofo matemático griego biblio entre los años 500 8496 antes de Cristo A qué edad murió y cuántos años hace que murió
Answer:
if you can transfer to englis i may be able to help
Step-by-step explanation:
George collected achievement score data for each child from a middle school. He has their gender, age, teacher, and score on the achievement measure as his data fields. George needs to calculate the central tendency of his variable achievement score. Which measure should he use
To calculate the central tendency of the variable "achievement score," George can use several measures, including the mean, median, and mode. The choice of measure depends on the nature of the data and the specific requirements of the analysis. Here's a brief explanation of each measure:
1. Mean: The mean is the average of all the achievement scores. It is calculated by summing up all the scores and dividing by the total number of scores. The mean is commonly used when the data is roughly symmetric and does not have extreme outliers.
2. Median: The median represents the middle value when the data is sorted in ascending or descending order. If there is an odd number of scores, the median is the exact middle value. If there is an even number of scores, the median is the average of the two middle values. The median is often used when the data has outliers or is skewed.
3. Mode: The mode is the value or values that appear most frequently in the data. It can be useful when there are prominent peaks or clusters in the distribution, or when dealing with categorical data.
The choice of the appropriate measure depends on the specific characteristics of the achievement score data, such as its distribution, presence of outliers, and the research question at hand. For example, if the data is normally distributed without outliers, the mean may provide an accurate representation of the central tendency.
However, if the data is skewed or contains extreme values, the median might be a more robust measure. Similarly, if the data is categorical or has distinct clusters, the mode could be informative.
Therefore, George should consider the nature of his achievement score data and the specific requirements of his analysis to determine the most suitable measure of central tendency.
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solve the following methods
don't know when you find out tell me
A recording studio charges musicians an initial fee of $ 100 to record and album. Studio time also coasts an additional $75 per hour
Write a slope intercept form equitation to model this situation
The linear model that represents the total cost of recording is f(x) = 75x + 50.
The initial fee is $50 for recording an album.
There is an additional cost per hour i.e. $75.
number of hours = x
Now based on the above information, the linear model should be f(x)=75x+50
Here 50 represent the initial fee i.e. equivalent to y-intercept
And, 75 represent the slope
Therefore we can conclude that the linear model that represents the total cost of recording is f(x) = 75x + 50.
let u=[1046] , v=[01−94] , and let w the subspace of r4 spanned by {u,v} . find a basis for w⊥ .
A basis for the orthogonal complement of W is {[-4, 9, 1, 0]}.
To find a basis for the orthogonal complement of the subspace W spanned by vectors u and v, we need to find vectors that are orthogonal to both u and v.
Given u = [1, 0, 4, 6] and v = [0, 1, -9, 4], we can find the orthogonal complement of W by finding vectors that satisfy the dot product conditions
u · x = 0,
v · x = 0,
Where x is a vector in the orthogonal complement of W.
Let's solve these dot product equations:
1x₁ + 0x₂ + 4x₃ + 6x₄ = 0, -----(1)
0x₁ + 1x₂ - 9x₃ + 4x₄ = 0. ------(2)
We can rewrite equations (1) and (2) as a system of linear equations:
x₁ + 4x₃ + 6x₄ = 0, -------(3)
x₂ - 9x₃ + 4x₄ = 0. -------(4)
We can solve this system of equations to find the values of x₁, x₂, x₃, and x₄.
Solving equation (4) for x₂, we get
x₂ = 9x₃ - 4x₄. ------(5)
Substituting equation (5) into equation (3), we have
x₁ + 4x₃ + 6x₄ = 0. -----(6)
We can choose arbitrary values for x₃ and x₄ and then solve for x₁ and x₂.
Let's choose x₃ = 1 and x₄ = 0
Substituting x₃ = 1 and x₄ = 0 into equation (6), we get
x₁ + 4(1) + 6(0) = 0,
x₁ + 4 = 0,
x₁ = -4.
Substituting x₃ = 1 and x₄ = 0 into equation (5), we get
x₂ = 9(1) - 4(0),
x₂ = 9.
Therefore, we have found one vector x₁ = -4 and x₂ = 9 that satisfies the dot product conditions. Let's denote this vector as x₁ = [-4, 9, 1, 0].
This vector x₁ is orthogonal to both u and v, and thus it belongs to the orthogonal complement of W.
Therefore, a basis for the orthogonal complement of W is {[-4, 9, 1, 0]}.
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How do you divide fractions with a whole number for dummies?
Even though dividing a fraction by a whole number might be challenging, it is simple to achieve with a few steps. By placing the full number above 1, you must first divide it into a fraction. After that, multiply the fraction you are dividing by the inverted version of the fraction. Lastly, simplify the response as much as possible.
For instance, to multiply 3/4 by 2:
Put 2 over 1, making it 2/1, to make it a fraction.
To get 1/2, invert 2/1.
To get 3/8, multiply 3/4 by 1/2.
Divide the numerator and denominator by 3 to get 1/4, which is the simplest representation of the fraction 3/8.
Hence, 1/4 is equivalent to 3/4 when divided by 2.
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Explain in words the following futurevalue formula: F_{n}=P(1+r)^{n} .
Answer: I am here to nswer
Step-by-step explanation: so first to this then do another thing
In Colorado, teens' awareness of seat belt messages increased __ percentage points. a.) 6 b.) 14 c.) 17 d.) 23 2.) In Nevada, teens' awareness of seat belt messages increased __ percentage points a.) 6 b.) 14 c.) 17 d.) 23 3.) What was the result of changes in teen seat belt use
Teen awareness refers to the level of knowledge, understanding, and consciousness that teenagers have about various issues, including but not limited to social, environmental, health-related, and global concerns.
1) In Colorado, teens' awareness of seat belt messages increased by __ percentage points.
The answer choices provided are a.) 6 b.) 14 c.) 17 d.) 23.
2) In Nevada, teens' awareness of seat belt messages increased by __ percentage points.
The answer choices provided are a.) 6 b.) 14 c.) 17 d.) 23.
3) The result of changes in teen seat belt use is unclear as you did not provide any specific information or data to analyze.
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24. Vince spent half of the money in his wallet on a new jumper
He then spent S15 on lunch.
After lunch he spent two thirds of the money remaining in his wallet on a hat.
If he is left with SIO in his wallet. how much did he have to begin with?
Answer:
$90
Step-by-step explanation:
Sorry to ask but can I have brainliest
i don't understand the second part (see photo)
Answer:
Step-by-step explanation:
Prime numbers has only two factor 1 and the number itself
Here, 2 , 3 prime factors
36 = 2 * 2 * 3 * 3
Find the angle of xyz
Give your answer to 1 decimal place.
Answer:
The value of sine of angle XYZ is equal to 0.96.
Step-by-step explanation:
Given that,
Base, b = 4 cm
Height, h = 13 cm
We need to find the sinY.
Using Pythagoras theorem,
YZ² = XY² + XZ²
YZ² = 4² + 13²
YZ = 13.60 cm
Using trigonometry,
\(\sin Y=\dfrac{13}{13.60}\\\\\sin Y=0.96\)
So, the value of sine of angle XYZ is equal to 0.96.
Please help with this question
Answer:
384π cm³
Step-by-step explanation:
Formula for the volume of a cone is \(\displaystyle \large{\frac{1}{3}\pi r^2 h}\) where:—
r is radiush is heightOur radius is given in an attachment which is 12 cm and height is 8 cm. Substitute these values in the formula:—
\(\displaystyle \large{V = \frac{1}{3}\pi (12)^2 \cdot 8}\\\displaystyle \large{V = \frac{1}{3}\pi \cdot 144 \cdot 8}\\\displaystyle \large{V = 48 \pi \cdot 8}\\\displaystyle \large{V = 384 \pi}\)
__________________________________________________________
Summary
Volume (Cone)
\(\displaystyle \large{V = \frac{1}{3}\pi r^2 h}\) where:—
h is height or perpendicular.
r is radius.
Value of Pi (Commonly Used)
\(\displaystyle \large{\pi \approx 3.14}\)
__________________________________________________________
If you have any questions regarding this problem or need clarification for my answer or explanation, do not hesitate to ask in comment! Good luck on your assignment and have a great day!
Chuck brought $51.75 to the state fair. He bought a burger, a souvenir, and a pass. The burger was 1/6 as much as the souvenir, and the souvenir cost 3/4 the cost of the pass. Chuck had $3.00 left over after buying these items.
I NEED HELP ASAP
I also need the price of each item
thanks
Answer:
The pass costs $26.60, the souvenir costs $19.70, and the burger costs $2.45.
(3RD TIME POSTING THIS)
9.Solve the inequality
-9.1 < x -6.3
Answer:
is that the whole math question? I need a number after the < to solve this
If 3100 individuals in a population of 46,785 complain of chronic headaches to one decimal place what percentage complain of this
If 3100 individuals in a population of 46,785 complain of chronic headaches to one decimal place: 6.6 percent complain of this.
If 3100 individuals in a population,
of 46,785 complain of chronic headaches
then, = 3100/ 46,785
= 0.066
now change the decimal to a percentage so that we will multiply the decimal by 100
= 0.066 * 100 = 6.6%
To change the percentage to a decimal, divide by 100. So 25% is 25/100, or 0.25. To convert a decimal to a percentage, increase by 100 (simply move the decimal direct 2 spots toward the right).
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which of the following expressions will evaluate to false? 12 < 12.0 12 != 12.0 12 == 12.0
Among the expressions given, the expression "12 != 12.0" will evaluate to false. As the values are equal numerically, the expression will evaluate to false.
Let's analyze the options step-by-step:
1. 12 < 12.0: This expression compares the values of 12 and 12.0 using the less than operator (<). In this case, both values are equal numerically, but 12.0 is represented as a floating-point number. However, the expression will still evaluate to false because the values are not strictly less than each other. Therefore, this expression is false.
2. 12 != 12.0: This expression checks if 12 is not equal to 12.0 using the inequality operator (!=). Since the values are equal numerically, the expression will evaluate to false. Therefore, this expression is false.
3. 12 == 12.0: This expression checks if 12 is equal to 12.0 using the equality operator (==). Since the values are equal numerically, the expression will evaluate to true. Therefore, this expression is true.
In summary, the expression "12 != 12.0" will evaluate to false.
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There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a blue marble is
3/8
There are 56 marbles in total in the bag and each is equally likely to be chosen.
Work out how many red marbles there must be.
Answer:
red marbles
Step-by-step explanation:
Since the formula is;
Probability = number of required outcome
_______________________
number of possible outcome
3/8. = x/56
8x. = 168
x. 21 ( number of blue marbles)
Therefore if the total marbles = 56 and 21 of the marbles are blue then to get the red marbles
= 56 - 21
= 35
What’s the error he made and the answer that’s all
Answer:
mica should have added 2 to 3 instead of 1
Step-by-step explanation:
what is −1.64 as a mixed number in simplest form.
Answer:
\(-1\dfrac{16}{25}\)
Step-by-step explanation:
\(-1.64 = \dfrac{-164}{100}\)
Strike with 4th table
\(= \dfrac{-41}{25}= -1\dfrac{16}{25}\)
2 Four friends go to the ice cream shop to purchase frozen
yogurt. Each friend gets a part strawberry and part
vanilla.
• Lucas gets 0.25 strawberry.
Adrianna gets % strawberry.
Ricardo gets 0.8 strawberry.
Jasmine gets % strawberry.
•
•
Arrange the friends in order from least to greatest amount of
strawberry in their yogurt.
Least
Greatest
Answer:
12
Step-by-step explanation:
42 multiplied by 7:3
Answer
Step-by-step explanation:
Answer:
42/1 x 7/3= 294/3= 98
Step-by-step explanation:
Evan's Tea Shop has caffeinated tea and decaffeinated tea. The tea shop served 9 caffeinated teas and 6 decaffeinated teas. What percentage of the teas served were caffeinated?
Answer:
Step-by-step explanation:
9 + 6 = 15caffeinated/all types of teas = x/100 = \(\frac{9}{15} = \frac{x}{100}\) Cross multiply and divide to find the percentage: 9 × 100 = 900, 900 ÷ 15 = 60Put 60 as the numerator: 60/100Convert to percentage: 60%You're done!
If you wanted to find the percentage of the decaffeinated teas, just subtract 60% from 100%, and you get 40%.
Answer:
60%
Step-by-step explanation:
Which operators are commutative (choose all that apply)? average of pairs of real numbers: adab = (a+b)/2. | multiplication of real numbers subtraction of integers composition of bijective functions from the set {1,2,3} to itself.
Which operators are commutative?
The operators which are commutative (choose all that apply) are: Average of pairs of real numbersMultiplication of real numbers.
The commutative operator states that the order in which the numbers are computed does not affect the result. Thus, the operators which are commutative (choose all that apply) are the average of pairs of real numbers and the multiplication of real numbers. The commutative property applies to binary operations and is one of the fundamental properties of mathematics. It states that changing the order of the operands does not alter the result of the operation. The addition and multiplication of real numbers are commutative properties. It implies that if we add or multiply two numbers, the result will be the same whether we begin with the first or second number.
Thus, the operators which are commutative (choose all that apply) are: Average of pairs of real numbers and the Multiplication of real numbers.
Therefore, the subtraction of integers and composition of bijective functions from the set {1,2,3} to itself are not commutative operators.
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Which of the following expressions is equal to 5 - 2m
Answer:
You didn't show any of the expressions
Step-by-step explanation:
Consider the compound inequality x<8 and x>a .
c. Repeat parts a. and b. for the compound inequality x<8 or x>a .
To solve the compound inequality x<8 and x>a, we need to find the values of x that satisfy both conditions. The compound inequality "x<8 and x>a" means that x must be simultaneously less than 8 and greater than a.
Since the condition x>a is more restrictive, the solution set is determined by x>a. In other words, x must be greater than a to satisfy both inequalities. Therefore, the solution to the compound inequality x<8 and x>a is x>a.
To solve the compound inequality x<8 or x>a, we need to find the values of x that satisfy either condition. The compound inequality "x<8 or x>a" means that x can be less than 8 or greater than a.
In this case, the condition x>a is the more inclusive one, as it encompasses all values greater than a. Therefore, the solution set to the compound inequality x<8 or x>a is x>a, meaning x must be greater than a to satisfy the inequality.
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On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other U.S. public utilities compare to Tulsa's rate? The data shown below ($) contains the rate per 5 CCF of residential water for 42 randomly selected U.S. cities.10.38 9.08 11.7 6.4 12.32 14.43 15.4610.02 14.4 16.08 17.5 19.08 17.88 12.7516.7 17.25 15.54 14.7 18.81 17.89 14.818.32 15.95 26.75 22.22 22.66 20.88 23.3518.95 23.6 19.16 23.65 27.7 26.95 27.0426.89 24.58 37.76 26.41 38.91 29.36 41.55(a)Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by U.S. public utilities differs from the $21.62 rate charged by Tulsa. (Enter != for ≠ as needed.)H0:Ha:(b)What is the test statistic for your hypothesis test in part (a)? (Round your answer to three decimal places.)What is the p-value for your hypothesis test in part (a)? (Round your answer to four decimal places.)(c)At α = 0.05, can your null hypothesis be rejected? What is your conclusion?Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.(d)Repeat the preceding hypothesis test using the critical value approach.State the null and alternative hypotheses. (Enter != for ≠ as needed.)H0:Ha:Find the value of the test statistic. (Round your answer to three decimal places.)State the critical values for the rejection rule. Useα = 0.05.(Round your answers to three decimal places. If the test is one-tailed, enter NONE for the unused tail.)test statistic≤test statistic≥State your conclusion.Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.
The null hypothesis for the data will be 21.62 and the alternate hypothesis is 2.02 for the p-value for the data is 0.2253 .
The charge at which anything happens is referred to as the velocity at which it happens.
The required details for mean rate :
(a) H0: µ = 21.62
Ha: µ ≠ 21.62
(b) t = -1.231
p-value = 0.2253
(c) Stop rejecting H0 right now. No longer significantly different from the domestic water tariff in Tulsa, the suggested household water charge per five CCF for the entire USA.
(d) H0: µ = 21.62
Ha: µ ≠ 21.62
t = -1.231
check statistic ≥ 2.020
Don't dismiss H0 any longer. The suggested five CCF residential water charge for the entirety of the USA is no longer significantly different from the five CCF residential water tariff in Tulsa.
The P-value is higher at 0.05, the level of significance. The impact in this instance is negligible. The attempt to reject the null hypothesis failed.
The conclusion is that there is insufficient statistical support to determine whether other American cities have a different mortality rate than Tulsa.
The crucial values for t at this level of significance are t=2.019.
Given that the statistic t = -1.15 is inside the acceptance range in this case, the null hypothesis is not disproved.
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A baseball team played 82 games. The team won 7 more than twice as many games as it lost. The equation l+2l+7=82 models this relationship, where l is the number of games lost. How many games did the team lose? How many games did the team win?
Answer:
The team lost 25 games and won 57.
Step-by-step explanation:
I am going to say what:
w is the number of games won.
As the problem states, l is the number of games lost.
The team won 7 more than twice as many games as it lost.
This means that \(w = 2l + 7\)
A baseball team played 82 games.
This means that:
\(w + l = 82\)
\(2l + 7 + l = 82\)
\(3l = 75\)
\(l = \frac{75}{3}\)
\(l = 25\)
And
\(w = 2l + 7 = 2*25 + 7 = 57\)
The team lost 25 games and won 57.
I need help with math about estimating calculations anyone want to help me
Answer:
hope this answer helps you dear...take care and may u have a great day ahead!