The area of the given semicircle is 56.574 sq. units. Half of the area of the circle is the area of the semicircle.
What is the area of the semicircle?The area of the semicircle is
A = \(\frac{1}{2}\) πr² sq. units
Where r - radius
A semicircle is nothing but half part of the circle. So, its area is also half of the circle's area.
Calculation:It is given that,
The radius of the semicircle is
r = 6
So, its area in terms of π is
A = \(\frac{1}{2}\) πr²
= \(\frac{1}{2}\) × π × 6²
= 18π sq. units
On substituting π = 3.143, we get
A = 18 × 3.143 = 56.574 sq. units
Thus, the area of the given semicircle in terms of π is 18π or in terms of π =3.143 is 56.574 sq. units.
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50 points!!!
7. Write and solve an inequality for the value of x.
The value of x must be between -18 and -6. The solution has been obtained using Triangle inequality theorem.
What is Triangle inequality theorem?
The triangle inequality theorem explains how a triangle's three sides interact with one another. This theorem states that the sum of the lengths of any triangle's two sides is always greater than the length of the triangle's third side. In other words, the shortest distance between any two different points is always a straight line, according to this theorem.
We are given three sides of a triangle as 8, 6 and x+20
Using Triangle inequality theorem,
⇒8+6 > x+20
⇒14 > x+20
⇒-6 > x
Also,
⇒x+20+6 > 8
⇒x+26 > 8
⇒x > -18
Also,
⇒x+20+8 > 6
⇒x+28 > 6
⇒x > -22
From the above explanation it can be concluded that x is less than -6 but greater than -22 and -18.
This means that x must lie between -18 and -6.
Hence, the value of x must be between -18 and -6.
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How much water is wasted by the leaky faucet in 1 day? (6 points: 2 points for each answer, including showing your work for each answer)
Answer: To answer this question, we would need to know the rate of water flow through the leaky faucet and the duration of time it leaks for. Without this information, it is not possible to calculate how much water is wasted in a day.
For example, if we assume that the leaky faucet drips once every second and each drip is equivalent to 0.25 milliliters of water, we can calculate the amount of water wasted in a day as follows:
1 day = 24 hours x 60 minutes/hour x 60 seconds/minute = 86,400 seconds
Number of drips in a day = 86,400 seconds x 1 drip/second = 86,400 drips
Amount of water wasted in a day = 86,400 drips x 0.25 milliliters/drip = 21,600 milliliters = 21.6 liters
Therefore, if the leaky faucet drips once every second and each drip is equivalent to 0.25 milliliters of water, it would waste approximately 21.6 liters of water in a day.
However, it is important to note that the rate of water flow through a leaky faucet can vary widely, so this is just one example calculation.
Step-by-step explanation:
7/12 minus 1/6 gggggggggggggggggggg
Answer:
\( \frac{5}{12} \)
Step-by-step explanation:
\( \frac{7}{12} - \frac{1}{6} \\ \\ = \frac{7}{12} - \frac{2}{12} \\ \\ = \frac{7 - 2}{12} \\ \\ = \frac{5}{12} \)
Answer:
0.41666666666
or
5/12
Step-by-step explanation:
Megan bought beads for $9.95. She received a 10% discount. She then paid, a sales tax of 6%. How much did she pay for the beads?
If apples are $1.87 per pound, how much does 3 pounds of
apples cost?
Answer:
$5.61
Step-by-step explanation:
Just multiply 1.87 and 3
If you really need a step by step ex take out the decimal and multiply 187 and 3 and put the decimal back in
Which of the following is a rule for determining non-random patterns?
(A) A run of six points or more
(B) An astronomical point
(C) A trend of three points or fewer
(D) A and B
The correct answer is (D) A and B. Both a run of six points or more and an astronomical point can be rules for determining non-random patterns.
A run of six points or more refers to a sequence of data points that share a common characteristic or exhibit a consistent trend.
In statistical analysis, a run is a consecutive sequence of data points above or below a certain threshold. If there is a run of six points or more in a dataset, it suggests a non-random pattern or trend.
An astronomical point refers to a data point that significantly deviates from the expected pattern or falls outside the normal range of values. This point stands out as an outlier and may indicate a non-random pattern in the data.
By combining these two rules, A and B, we can identify non-random patterns in a dataset. A run of six points or more indicates a sustained trend, while an astronomical point signifies a significant deviation from the expected pattern.
It's important to note that a trend of three points or fewer, as mentioned in option (C), does not provide enough evidence to determine a non-random pattern. A trend of three points or fewer may still be subject to randomness or noise in the data, and it is not considered statistically significant.
Therefore, the correct answer is option (D) A and B, as both a run of six points or more and an astronomical point can help identify non-random patterns in data.
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If b = 0, then the number is also called a/an _____
number
Answer:
imaginary number and a real number
mrs peery is sharing 18 biscutes between gemma and zak in the ratio 1:2
Answer:
gemma gets 6 and zac gets 12
Step-by-step explanation:
zac gets double the about
Find the missing angle.
(PLEASEEE HURRYYY)
Answer:
B
Step-by-step explanation:
360 - (100+91+95) = 74
Because angles in a quadrilateral add upto 360 degrees
What is f(4) for the function f(x) = 6x +3?
f(4)=0
The value of function f(4) is 27.
It is required to find the value of function f(4).
What is function?
A function is defined as a relation between a set of inputs having one output each. function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.
Given that:
The function is
f(x) = 6x +3
Now put the value x=4 in the given function, we get
f(4)=6(4) +3
= 24+3
=27
f(4)=27.
Hence, the value of function f(4) is 27.
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answer the following this is reading!!
Answer:
A I assume
Step-by-step explanation:
I was between A and D ( The first one and the last) but I think a makes more sense
the expected value tells us about the [ select ] of a distribution, while the variance (or standard deviation) tells us about its [ select ] .
The expected value tells us about the central tendency of a distribution, while the variance (or standard deviation) tells us about its dispersion or spread.
The expected value, denoted as E(X) or µ, represents the average or mean value that we can expect to obtain from a random variable X. It provides a measure of the central tendency or the "typical" value of the distribution. For example, if we have a distribution of the heights of a group of people, the expected value would give us the average height of the group.
On the other hand, the variance, denoted as Var(X) or σ², measures the spread or dispersion of the distribution. It quantifies how far the values of the random variable X deviate from the expected value. The square root of the variance, known as the standard deviation (σ), provides a more interpretable measure of spread in the same units as the random variable itself. A larger variance or standard deviation indicates a wider spread of values around the expected value, while a smaller variance or standard deviation indicates a more concentrated distribution.
In summary, the expected value summarizes the central tendency of a distribution, while the variance or standard deviation quantifies the dispersion or spread of the distribution.
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Work out the area of the parallelogram.
Not drawn
accurately
13 cm
799
21 cm
Answer:
273
Step-by-step explanation:
area of parallelogram = b × h
13 × 21
273 cm
i hope its help u ,
suppose that you and a friend are playing cards and decide to make a bet. if your friend draws two non-face cards, where a face card is a jack, a queen, or a king, in succession from a standard deck of 52 cards replacing the first card, you give him $30. otherwise, he pays you $50. if the same bet was made 20 times, how much would you expect to win or lose? round your answer to the nearest cent, if necessary.
I will win about $ 59.
This is a question of permutations and combinations.
We know that,
Probability of getting two non face cards = \(\frac{^{40}C_2}{{^{52}C_2}}\) = 10/17
Probability of not getting two non face cards = 1 - (10/17) = 7/17
Hence, we can write,
Money I will get = (7/17)*50*20 = $ 411.764
Money I'll have to pay = (10/17)*30*20 = $ 352.94
We know that,
Money left with me = Money I will get - Money I'll have to pay
Hence, we can write,
Money left with me = $ 411.764 - $ 352.94
Money left with me = 58.824 ≈ $ 59
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What is the product?
Answer:
The answer I got was
Step-by-step explanation:
[7, 4, 3]
You use the matrix calculator and then select a*b
Which of the following is the slope-intercept form of 9x + 3y – 15 = 0?
Answer:
y = -3x + 5
Step-by-step explanation:
slope-intercept form means it should look like
y = mx + b
9x + 3y – 15 = 0
3y = -9x + 15
y = -3x + 5
How do you make 0 a fraction
The optimal amount of x1, x2, P1, P2 and income are given by the
following:
x1= 21/ 7p1 x2= 51 / 7p2
The original prices are: P1=10 P2=5 The original income is: I
=4189 The new price of P1 is the foll
The total change in the consumed quantity of x₁ as per given price and income is equal to 213.
x₁ = (21/7)P₁
x₂ = (51/7)P₂
P₁ = 10
P₂ = 5
P₁' = 81
To calculate the total change in the quantity consumed of x₁ when the price of P₁ changes from P₁ to P₁',
The difference between the quantities consumed at the original price and the new price.
Let's calculate the quantity consumed at the original price,
x₁ orig
= (21/7)P₁
= (21/7) × 10
= 30
x₂ orig
= (51/7)P₂
= (51/7) × 5
= 36.4286 (approximated to 4 decimal places)
Now, let's calculate the quantity consumed at the new price,
x₁ new
= (21/7)P1'
= (21/7) × 81
= 243
x₂ new
= (51/7)P2
= (51/7) × 5
= 36.4286
The total change in the quantity consumed of x₁ can be calculated as the difference between the new quantity and the original quantity,
Change in x₁
= x₁ new - x₁ original
= 243 - 30
= 213
Therefore, the total change in the quantity consumed of x₁ is 213.
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The above question is incomplete, the complete question is:
The optimal amount of x1, x2, P1, P2 and income are given by the following:
x1= 21/ 7p1 x2= 51 / 7p2
The original prices are: P1=10 P2=5 The original income is: I =4189 The new price of P1 is the following: P1'=81 Assume that the price of x1 has changed from P1 to P1'. What is the total change in the quantity consumed of x1?
Please answer step by step
Plentiful Pies determines its annual profits
in dollars using p(x) = 65x - 0.3x2 where x
represents the numbers of pies sold. If Plentiful
Pies sells 175 pies in a year, what will their
annual profits be?
Answer:
The annual profits will be 2187.5
Step-by-step explanation:
p(x) = 65x - 0.3x^2
I am guessing that the 2 was supposed to be a square.
Simply plug in the number of pies sold:
p(175) = 65(175) - 0.3(175)^2 = 11375 - 0.3*30625 = 11375 - 9187.5 = 2187.5
is -9 greater than -10
Answer:
yes -9 Is greater than -10
suppose we flip four coins simultaneously: a penny, a nickel, a dime, and a quarter. what is the probability that the penny and nickel both come up heads?
The probability of the coins penny and nickel both should show heads when four coins flip simultaneously is equal to 1/4.
As given in the question,
Number of coins flip simultaneously = 4
Possible outcomes on flipping a outcome = { head , tail}
Total outcomes = 2
Probability of getting a head for each coin = 1 /2
Probability of getting heads on both the coins penny and nickel
= ( 1 / 2 ) × ( 1 / 2 )
= ( 1 / 4 )
Therefore, the probability of getting heads on both the coins penny and nickel is equal to 1 / 4.
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James has x merit points.
Sarah has three times as many merit points than James.
Robert has 61 fewer merit points than James.
Each merit point is worth 3 pence.
All three of the students have a total of £15.72
Work out how many merit points each student has.
James has 117 merit points, Sarah has 351 merit points, and Robert has 56 merit points.
Let's break down the given information and solve the problem step by step.
Let's assume James has x merit points.
According to the given information, Sarah has three times as many merit points as James. Therefore, Sarah has 3x merit points.
Robert has 61 fewer merit points than James. So, Robert has (x - 61) merit points.
Now, we can calculate the total value of the merit points in pence. Since each merit point is worth 3 pence, we can express the total value in pence as:
Value in pence = (x * 3) + (3x * 3) + ((x - 61) * 3)
Next, we need to convert the total value from pence to pounds. Since there are 100 pence in 1 pound, we divide the total value in pence by 100 to get the value in pounds:
Value in pounds = Value in pence / 100
According to the problem, the total value is £15.72. So we can set up the equation:
Value in pounds = 15.72
Now we can substitute the expression for the value in pounds into the equation:
((x * 3) + (3x * 3) + ((x - 61) * 3)) / 100 = 15.72
Simplifying the equation:
(3x + 9x + 3x - 183) / 100 = 15.72
Combining like terms:
15x - 183 / 100 = 15.72
Multiplying both sides of the equation by 100 to eliminate the fraction:
15x - 183 = 1572
Adding 183 to both sides:
15x = 1755
Dividing both sides by 15:
x = 117
Now we have the value of x, which represents the number of merit points James has. Plugging this value into the expressions we obtained earlier, we can find the number of merit points for each student:
James: x = 117 merit points
Sarah: 3x = 3 * 117 = 351 merit points
Robert: (x - 61) = 117 - 61 = 56 merit points
Therefore, James has 117 merit points, Sarah has 351 merit points, and Robert has 56 merit points.
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a + b = 4a
please help
hdhdbbdnfnbrndjjrhrhrhrhbdbd
If f(x) = 2x³ = x² + 3x + 10 and g(x) = x³ + 3x² + 2x + 4, determine when f(x) > g(x).
Hope this helps, if not sorry.
The mean SAT score in mathematics is 554. The standard deviation of these scores is 39. A special preparation course claims that the mean SAT score, HI, of its graduates is greater than 554. An independent researcher tests this by taking a random sample of 60 students who completed the course; the mean SAT score in mathematics for the sample was 567. At the 0.01 level of significance, can we conclude that the population mean SAT score for graduates of the course is greater than 5542 Assume that the population standard deviation of the scores of course graduates is also 39. Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places, and round your responses as specified below. (If necessary, consult a list of formulas.) (a) State the null hypothesis H, and the alternative hypothesis H. μ a р H.: 0 H: 0 х S ê 0. DO (b) Determine the type of test statistic to use. (Choose one) ロ=口 OSO 020 (c) Find the value of the test statistic. (Round to three or more decimal places.) O . $ ?
(d) Find the p-value. (Round to three or more decimal places.) 0 (e) Can we support the preparation course's claim that the population mean SAT score of its graduates is greater than 554? Yes No
We have the following details
mean = 554
n = 60
bar x = 567
alpha = 0.01
How to solve for the hypothesisA. h0. u = 554
H1. u > 554
B. Given that the standard deviation is known what we have to make use of is the independent z test
test statistics calculation
567-554/(39/√60)
= 2.582
d. at alpha = 0.01 and test statistics = 2.582, the value of the p value = 0.0049
0.0049 < 0.01. So we have to reject the null hypothesis.
e. Yes We have to accept that we support the preparation course's claim that the population mean SAT score of its graduates is greater than 554
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Solve each system by elimination.
−5x − 10y = 15
−3x + 10y = 25
Answer:
-5x-10y=15
-3x+10y=25
-8x=40
x= - 5, y= 1
Step-by-step explanation:
How much work does the charge escalator do to move 2.40 μC of charge from the negative terminal to the positive terminal of a 2.00 V battery?
The work done by the charge escalator to move 2.40 μC of charge from the negative terminal to the positive terminal of a 2.00 V battery is 4.80 * 10⁻⁶ CV.
To calculate the work done by the charge escalator to move 2.40 μC of charge from the negative terminal to the positive terminal of a 2.00 V battery, we can use the equation:
Work (W) = Charge (Q) * Voltage (V)
Given:
Charge (Q) = 2.40 μC
Voltage (V) = 2.00 V
Converting μC to C, we have:
Charge (Q) = 2.40 * 10⁻⁶ C
Plugging in the values into the equation, we get:
Work (W) = (2.40 * 10⁻⁶ C) * (2.00 V)
Calculating the multiplication, we find:
W = 4.80 * 10⁻⁶ CV
Therefore, the work done by the charge escalator to move 2.40 μC of charge from the negative terminal to the positive terminal of a 2.00 V battery is 4.80 * 10⁻⁶ CV.
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Can someone help me with this Question.
The formula we need to use is given above. In this formula, we will substitute the desired values. Let's start.
\(P=3W+D\)A) First, we can start by analyzing the first premise. The team has \(8\) wins and \(5\) losses. It earned \(8 \times 3 = 24\) points in total from the matches it won and \(1\times5=5\) points in total from the matches it drew. Therefore, it earned \(24+5=29\) points.
B) After \(39\) matches, the team managed to earn \(54\) points in total. \(12\) of these matches have ended in draws. Therefore, this team has won and lost a total of \(39-12=27\) matches. This number includes all matches won and lost. In total, the team earned \(12\times1=12\) points from the \(12\) matches that ended in a draw.
\(54-12=42\) points is the points earned after \(27\) matches. By dividing \(42\) by \(3\) ( because \(3\) points is the score obtained as a result of the matches won), we find how many matches team won. \(42\div3=14\) matches won.
That leaves \(27-14=13\) matches. These represent the matches team lost.
Finally, the answers are below.
\(A)29\)
\(B)13\)
Answer:
a) 29 points
b) 13 losses
Step-by-step explanation:
You want to know points and losses for different teams using the formula P = 3W +D, where W is wins and D is draws.
A 8 wins, 5 drawsThe number of points the team has is ...
P = 3W +D
P = 3(8) +(5) = 29
The team has 29 points.
B 54 pointsYou want the number of losses the team has if it has 54 points and 12 draws after 39 games.
The number of wins is given by ...
P = 3W +D
54 = 3W +12
42 = 3W
14 = W
Then the number of losses is ...
W +D +L = 39
14 +12 +L = 39 . . . substitute the known values
L = 13 . . . . . . . . . . subtract 26 from both sides
The team lost 13 games.
__
Additional comment
In part B, we can solve for the number of losses directly, using 39-12-x as the number of wins when there are x losses. Simplifying 3W +D -P = 0 can make it easy to solve for x. (In the attached, we let the calculator do the simplification.)
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hi how are you today can you please help me with this question
If:
\(\frac{a}{b}=\frac{c}{d}=\frac{e}{f}=\frac{a+c+e}{b+d+f}\)so:
\(\begin{gathered} 15\colon9\colon4 \\ \frac{15}{1}=\frac{9}{1}=\frac{4}{1}=\frac{15+9+4}{3}=\frac{28}{3} \end{gathered}\)\(\begin{gathered} \frac{3}{x}=\frac{28}{3} \\ x=\frac{9}{28} \end{gathered}\)Or:
0.32 liters
(b)
We need to find the volume of the rectangular prism, therefore:
\(\begin{gathered} V=l\cdot w\cdot h \\ V=40\cdot20\cdot35 \\ V=28000cm^3 \end{gathered}\)However, we need to express the volume in liters, so:
\(28000cm^3\times\frac{1L}{1000cm^3}=28L\)Since we need to know the amount of mango juice:
\(28\cdot\frac{2}{5}=11.2L\)Rewrite the expression using the Distributive Property. Then simplify.
2(x+4)
Write the simplified expression.
The expression can be rewrite as \((2\times x)+(2\times4)\) using distributive property and on simplification ,it gives \(2x+8\) .
"Distribution" means sharing or giving a share or portion of something.The distribution laws of multiplication for basic arithmetic operations such as addition and subtraction are known as distribution characteristics.According to this property, multiplying the sum of two or more summands by a number gives the same result as multiplying each summand separately by a number and then adding the products.Use this property of multiplication rather than addition when you need to multiply a number by the sum of two numbers.
Let's use properties to calculate given the expression. The number 2 is divided by two addends. Simply put , multiply each summand by 2 and add the products together.
By using distributive property , we get
\(2(x+4)=(2\times x)+(2\times4)\)
On simplifying , we get
\((2\times x)+(2\times4)=2x+8\)
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\(\huge\text{Hey there!}\)
\(\huge\textbf{What is the distributive property}\\\\\huge\textbf{formula?}\)
\(\mathsf{a(b + c)}\\\\\mathsf{= a(b) + a(c)}\\\\\mathsf{= ab + ac}\)
\(\huge\textbf{But what about your equation?}\)
\(\mathsf{2(x + 4)}\\\\\mathsf{= 2(x) + 2(4)}\\\\\mathsf{= 2x + 8}\)
\(\huge\text{Therefore your answer should be: \boxed{\mathsf{2x + 8}}}\huge\checkmark\)
\(\huge\text{Good luck on your assignment \& enjoy your day!}\)