Answer:
A) 22.2
Step-by-step explanation:
I took AMC 8 and got it right. ^^
2. How many five digit integers (integers between 10000 and 99999 inclusive) have exactly two distinct digits?
To find the number of five-digit integers that have exactly two distinct digits, we can approach this by counting the number of possible arrangements for the two distinct digits in a five-digit number.
The first digit cannot be 0 since we are looking at numbers between 10000 and 99999. So, there are nine choices for the first digit. There are also nine choices for the second digit since it cannot be equal to the first digit. We can choose the positions of the two digits in 5C2 ways (since we are choosing two positions from five). Once we have placed the two digits in the chosen positions, we have no choice for the remaining three digits since they must be the same as one of the two distinct digits. So, there are two choices for the remaining three digits.Consequently, the total number of such five-digit integers is:9 × 9 × 5C2 × 2 = 2430. In the question, we are asked to find the number of five-digit integers that have exactly two distinct digits. We can solve this problem by considering the possible arrangements of the two distinct digits in a five-digit number. Since the first digit cannot be 0, we have nine choices for the first digit. Similarly, we have nine choices for the second digit since it cannot be equal to the first digit. We can choose the positions of the two digits in 5C2 ways (since we are choosing two positions from five). Once we have placed the two digits in the chosen positions, we have no choice for the remaining three digits since they must be the same as one of the two distinct digits. So, there are two choices for the remaining three digits. Therefore, the total number of such five-digit integers is 9 × 9 × 5C2 × 2 = 2430.
Thus, there are a total of 2430 five-digit integers that have exactly two distinct digits.
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Find WX
10x + 5
7x + 8
8x-1
Answer: 127
Step-by-step explanation:
A chef needs to increase the temperature of a food dish. She thinks she can do this by stacking another dish on top of it. She has three dishes to choose from for the top dish: A, B, and C.
Which one of these dishes would make the food dish the warmest when placed on top of it? As part of your answer, explain how the energy and temperature of both the top dish and the food dish will change when the food dish warms up, and why.
Answer:
This question is incomplete
Step-by-step explanation:
Answer:
I may not know the answer but from what I. seeing we taking the same test TwT
10. The pressure of the water P at any point below the surface of the sea varies as the depth of the point below the surface d. If the pressure is 200 newtons/cm2 at a depth of 3 m, calculate the pressure at a depth of 5 m.
The pressure at the depth of 5 meters will be 333.34 N / cm ²
What is pressure?Pressure is defined as the normal force acting at the per unit area of any object.
Given that:-
If the pressure is 200 newtons/cm2 at a depth of 3 m, calculate the pressure at a depth of 5 m.The pressure at the 5 m below sea level will be:-
3 m = 200
1 m = 200 / 3
5 m = 200/3 x 5
5m = 333.34 N / cm²
Therefore the pressure at the depth of 5 meters will be 333.34 N / cm ²
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0
Draw the graph of y = 3 - 0.5x
Answer:
Step-by-step explanation:
All you need do is set up a table with three points
x y
2 3- 0.5*2 = 2
0 3
6 0
Now plot the 3 points. You should get something that looks like the graph I downloaded for you.
* Find b if log, 81=4. A) 5 B) 4 C) 3 D) 2 E) !
Answer:
B
Step-by-step explanation:
I need help with this ,can someone please answer it for me
Answer:
h=
\( \frac{15}{4} \)
Step-by-step explanation:
Divide both sides by 8:
\(2 - 7 + 4h = \frac{80}{8} \)
Divide 80 by 8 to get 10:
\(2 - 7 + 4h = 10\)
subtract 7 from 2 to get -5:
\( - 5 + 4h = 10\)
add 5 to both sides:
\(4h = 10 + 5\)
Add 10 and 5 to get 15:
\(4h = 15\)
divide both sides by 4.:
\(h = \frac{15}{4} \)
Hopefully this helps! :)
Arianna's personal residence has an adjusted basis of $300,450 and a fair market value of $270,405. Arianna converts the personal residence to rental property. What is Arianna's gain basis
If Arianna decides to sell the rental property in the future, the gain or loss will be calculated based on the $270,405 gain basis.
The gain basis for Arianna's converted personal residence to rental property can be calculated by determining the lower value between the adjusted basis and the fair market value.
In this case, the adjusted basis is $300,450 and the fair market value is $270,405.
The gain basis is the lower of the two values, which in this case is $270,405. This means that the gain basis for Arianna's rental property is $270,405.
The gain basis is important for tax purposes as it is used to calculate the taxable gain or loss when the property is eventually sold.
If the property is sold for a higher price than the gain basis, there will be a taxable gain.
On the other hand, if the property is sold for a lower price than the gain basis, there will be a deductible loss.
In Arianna's case, if she decides to sell the rental property in the future, the gain or loss will be calculated based on the $270,405 gain basis.
It is important to note that there may be additional factors and adjustments that could affect the final tax calculations, such as depreciation deductions and any improvements made to the property.
Consulting a tax professional would provide more accurate and detailed information regarding the tax implications of selling the rental property.
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Complete the sentence below. Given two functions f and g, the Given two functions f and g, the denoted fo g, is defined by fo g(x) = denoted fo g, is defined by fo g(x) = inverse function, composite function, EE identity function, Complete the sentence below. Given two functions f and g, the Given two functions f and g, the denoted fo g, is defined by fo g(x)= denoted fog, is defined by fo g(x) = f-¹ (g(x)). f(g(x)). (f+g)(x).
Given two functions f and g, the denoted fog, is defined by fog(x) = f(g(x)).
The notation fog represents the composite function of f and g. In this notation, fog(x) means applying the function g to x first, and then applying the function f to the result of g(x). In other words, fog(x) = f(g(x)).
The composition of two functions, f and g, is a new function where the output of g becomes the input of f. In other words, we evaluate g(x) first and then use the result as the input for f. This is denoted as fog(x) = f(g(x)).
The denoted fog is defined by fog(x) = f(g(x)), representing the composite function of f and g. The composition of functions, denoted fog, is defined by fog(x) = f(g(x)), where the output of g(x) is used as the input for f.
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Explain how to determine if the two expressions are
equivalent using x = 6 and x = 2.
2x + 4-1
3 + x + x
Answer: Plug in x=6 and x=2. If you get the same answers for x=6 and x=2, we know that the equations are equal.
Step-by-step explanation:
To determine if the two equations are equivalent, we can plug in x=6 and x=2 to both equations and see if you get the same result.
2x+4-1 [plug in x=6]
2(6)+4-1 [multiply]
12+4-1 [add and subtract]
15
For x=6, we get 15 for 2x + 4-1.
3+x+x [plug in x=6]
3+6+6 [add]
15
Since we plugged in x=6 for both equations and got 15 for both answers, we know that the two equations are equivalent.
--------------------------------------------------------------------------------------------------------------
Let's plug in x=2 to make sure we are correct.
2x+4-1 [plug in x=2]
2(2)+4-1 [multiply]
4+4-1 [add and subtract]
7
For x=2, we get 7 for 2x + 4-1.
3+x+x [plug in x=2]
3+2+2 [add]
7
Since we plugged in x=2 for both equations and got 7 for both answers, we know that the two equations are equivalent.
--------------------------------------------------------------------------------------------------------------
With the confirmation of plugging in both x=6 and x=2, and getting the same answers, we know that the two equations are equivalent.
Answer:
hope this helps
Step-by-step explanation:
If both expressions have the same value after substituting and simplifying for x = 6 and x = 2, then they are equivalent. Substitute 6 for each variable, x, in both expressions. Use the order of operations to simplify both expressions. The value of both expressions is 15. Now, substitute 2 for each variable, x, in both expressions. Use the order of operations to simplify both expressions. The value of both expressions is 7. Therefore, the expressions are equivalent.
g use part one of the fundamental theorem of calculus to find the derivative of the function.f(x)
Using the theory of the Fundamental Theorem of Calculus, the derivative of the function given in the question as calculated is f'(x) = -(7 + sec (4t).
The given question is incomplete , I am answering it as my general knowledge.
The differential of g(x); g'(x) = f(x).
As a result , the function f'(x)'s derivative is '
f' ( x ) = - √(7 + sec(4t) .
The derivative of a function means the rate of change of function as per the given limits .
It tells us about the sensitivity of the function's value (output value) to changes in its argument .
Derivations are an important part of calculus . The velocity of an item, for instance, is the derivative of its position with respect to time, it tells us how quickly the object's position varies as time passes.
When it occurs, the slope of the tangent line to the function's graph at a given input value is the derivative of a function of a single variable. The function closest to that input value is best approximated linearly by the tangent line.
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a data set consists of the data given below plus one more data point. when the additional point is included in the data set the sample mean of the resulting data set is 26.5. what is the value of the additional data point?23, 28, 20, 33, 42, 12, 19, 50, 36, 25, 19
The value of the additional data point is 36
To find the value of the additional data point, we can use the concept of the sample mean.
Given the data set: 23, 28, 20, 33, 42, 12, 19, 50, 36, 25, 19.
The sample mean of this data set is 26.5.
To find the value of the additional data point, we can use the formula for the sample mean:
(sample mean) = (sum of all data points) / (number of data points)
In this case, we have 11 data points in the original data set. Let's denote the value of the additional data point as x.
Therefore, we can set up the equation:
26.5 = (23 + 28 + 20 + 33 + 42 + 12 + 19 + 50 + 36 + 25 + 19 + x) / 12
Multiplying both sides of the equation by 12 to eliminate the fraction, we have:
318 = 282 + x
Subtracting 282 from both sides of the equation, we find:
x = 318 - 282
x = 36
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.
Amelia went to an amusement park with $45 to spend. She bought lunch for $10.25 and paid $5.00 for each ride. What is the greatest number of rides Amelia could ride?
Answer:
Your answer is $34.75
Step-by-step explanation:
plz mark me brainliest
Answer:
6
Step-by-step explanation:
Mukuunda bought 20 dozen of pencilsat Rs. 100. At what rate should a pencil be sold so that the profit may be Rs. 20
What is the equation of the line that contains the points
(-5,0) and (0,6) ?
Answer:
y=6/5+6
Step-by-step explanation:
the proposals are independent, which one(s) should she select at MARR =15.5% per year? 2. If the proposals are mutually exclusive, which one should she select at MARR =10% per year? 3. If the proposals are mutually exclusive, which one should she select at MARR =14% per year?
To determine which proposal(s) to select, we need to compare the present worth or net present value (NPV) of each proposal. The NPV represents the difference between the present value of cash inflows and outflows for each proposal.
For independent proposals at MARR = 15.5% per year:
Calculate the NPV for each proposal using the cash inflows and outflows and discounting them to present value using the MARR of 15.5%.
Select the proposal(s) with a positive NPV. Positive NPV indicates that the project's expected cash inflows exceed the initial investment and the MARR.
For mutually exclusive proposals at MARR = 10% per year:
Calculate the NPV for each proposal using the cash inflows and outflows and discounting them to present value using the MARR of 10%.
Select the proposal with the highest positive NPV. The proposal with the highest positive NPV indicates the project that generates the highest expected return or value relative to the MARR.
For mutually exclusive proposals at MARR = 14% per year:
Calculate the NPV for each proposal using the cash inflows and outflows and discounting them to present value using the MARR of 14%.
Select the proposal with the highest positive NPV. The proposal with the highest positive NPV indicates the project that generates the highest expected return or value relative to the MARR.
It's important to note that the specific details of the proposals, including cash inflows, outflows, and timing, are needed to calculate the NPV accurately. Without this information, it is not possible to provide a definitive answer.
use determinants to find the area of the parallelogram shown below
Answer:
30
Step-by-step explanation:
To find the determinant of a parallelogram given points (a, b), (c, d), and (e, f), we can use
\(\left[\begin{array}{ccc}a&b&1\\c&d&1\\e&f&1\end{array}\right]\) and calculate the determinant of that. Three points on the parallelogram are (-1,1), (-1, -5), and (4, 5). Plugging these into the matrix, we get
\(\left[\begin{array}{ccc}-1&1&1\\-1&-5&1\\4&5&1\end{array}\right]\). The determinant is equal to
\(-1 *det \left[\begin{array}{ccc}-5&1\\5&1\end{array}\right] \\- 1 * det \left[\begin{array}{ccc}-1&1\\4&1\end{array}\right] \\\\+ 1 * det \left[\begin{array}{ccc}-1&-5\\4&5\end{array}\right] \\= -1 * (-5*1 - (1*5))- 1 * (-1 * 1 - (4*1)) + 1 * (-1 * 5 - (-5*4)) \\= -1 *(-5-5) -1 * (-1 - 4) + 1 * (-5 - (-20))\\= -1 * (-10) -1 * (-5) +1 * (15)\\= 10 + 5 + 15\\=30\)
pls help me, thankyuu❤️
Answer:
1. 3, 12, 48, 192, 768 Ratio: x4
2. 8, 16, 32, 64, 128 Ratio: x2
3. 120, 60, 30, 15, 7.5 Ratio: ÷2
4. 5, 10, 20, 40, 80, 160 Ratio: x2
5. 1.3?, 4, 12, 36, 108, 324 Ratio: x3
Hope this helps!
I'm not sure about the first one on question 5 though.
Levi bought o oranges at the store. Each orange cost $0.29. Write an algebraic expression to represent how much Levi spent.
Answer:
0.29x
Step-by-step explanation:
let x be the number of oranges Levi bought
Jennifer made these measurements on ABC,BC must be-?
Answer:
between 10 and 12
Step-by-step explanation:
Given the measure of angles:
m∠B = 70°
m∠C = 60°
m∠A = 50°
We know m∠B = 70° because the sum of interior angles in a triangle is equal to 180°.Following this information, since the side lengths are directly proportional to the angle measure they see:
Angle B is the largest angle. Therefore, side AC is the longest side of the triangle since it is opposite of the largest angle.
Angle C is the smallest angle, so the side AB is the shortest side.
Therefore, side BC must be between 10 and 12 inches.
Stuck on this question need help
Answer:
4y4 the 1st one
may this help you
0.53 was rounded to 2 significant figures.
What is the upper bound?
Answer:
0.535
Step-by-step explanation:
The place value when rounded to 2 significant figure of this number is hundredth ( 0 . 5 3 )
Find the half of a hundredth.
0.01 ÷ 2 = 0.005
Now add 0.005 to 0.53
0.53 + 0.005 = 0.535
Upper bound = 0.535
What is this? Someone please help me
Answer and Step-by-step explanation:
Haven't done this in a while, so here we go:
The rule (I'm not really sure) would have to be negative number and negative number.
This means that:
(4, 0) would become (-4, 0) A'
(6, -2) becomes (-6, 2) B'
(8, -7) becomes (-8, 7) C'
and (0, -5) becomes (0, 5) D'
#teamtrees #WAP (Water And Plant)
Tamara is considering two different groups for her relay-race team. Listed below are the different practice times, in minutes, recorded for each group.
which group is most likely to have the best time in the race
Add the times for each group together and divide by the quantity to find the averages and compare:
Average for green group is: 4.317
Average for blue group is 4.298
The blue group has a lower (faster) average .
Answer: the blue group
In a sample of 230 commuting students, 111 reported that they walked to school. Can you conclude that fewer than half of the commuting students walk to school? Conduct a hypothesis test at the significance level of 10%. This hypothesis test is testing ____ Hence, you perform a ____ test. The alternative hypothesis has a Select] symbol in it and both of the hypotheses compare the parameter to the value ____ The value of your test statisticis ____which results in a p-value of ____You could also find the critical value, which is ____ Using the p-value or the critical value, you determine that you _____ This means that there is ____ evidence to say that the proportion of commuting students that walk is ____ at the _____ level of significance.
This hypothesis test is testing the proportion of commuting students who walk to school.
Hence, you perform a one-sample proportion test.
The alternative hypothesis has a "less than" symbol in it and both of the hypotheses compare the parameter to the value 0.5.
The value of your test statistic is -1.885, which results in a p-value of 0.030.
You could also find the critical value, which is -1.645.
Using the p-value or the critical value, you determine that you reject the null hypothesis.
This means that there is significant evidence to say that the proportion of commuting students that walk is less than half at the 10% level of significance.
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Math question I need help on
A jet travels 590 miles in 5 hours at this rate how far could the jet fly in 10 hours
Answer:
1180 miles
Step-by-step explanation:
590 x 2. If 590 miles in 5 hours then in ten it would be double. 590x2=1180.
So 1180 miles
Hope this helps
calculate the expected value of the sample mean of mpg derived from a random sample of four passengers
The expected value of the sample mean of mpg derived from a random sample of four passengers is 30.5 mpg.
The expected value of the sample mean can be calculated using the formula
E(x) = μ
where x is the sample mean, and μ is the population mean.
In this case, the population mean is given as 30.5 mpg. The standard deviation of the population is also given as 4.1 mpg.
The standard deviation of the sample mean can be calculated using the formula
σx = σ/√n
where σ is the population standard deviation and n is the sample size.
Substituting the given values, we get:
σx = 4.1/√4 = 2.05
So the expected value of the sample mean is
E(x) = μ = 30.5 mpg.
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Calvin works at a facility which processes apples. It costs the facility $0. 68 to make either a jar of applesauce or a bottle of apple juice. Due to the nature of the process and contractual agreements, Calvin’s facility must make and sell three jars of applesauce for every two bottles of apple juice. A jar of applesauce sells for $2. 20, and a bottle of apple juice sells for $3. 15. If the facility has annual overhead costs of $368,500, not including production costs, how many bottles of apple juice will the facility have sold when it breaks even every year? Round to the nearest whole bottle, if necessary. A. 38,789 b. 77,579 c. 116,368 d. 167,500.
The number of bottles the facility requires to sell when it breaks is given by
a system of two simultaneous equations.
When the facility breaks even, it would have sold 77,579 bottles of apples juice.Reasons:
The cost to make a jar of applesauce or a bottle of apple juice = $0.68
Number of jars of applesauce to be sold foe every 2 bottles of apple juice = 3 jars
The selling price for a jar of applesauce = $2.20
Selling price for a bottle of apple juice = $3.15
Annual overhead cost excluding production cost = $368,500
Required: Number of bottles of apple juice sold by the facility when it breaks even annually.
Solution:
Let J represent the number of bottles of apple juice sold, and let S represent the number of jars of apple sauce, by excluding the production cost, we have;
(3.15 - 0.68)·J + (2.2 - 0.68)·S = 368,500
S : J = 3 : 2
Which gives;
\(\displaystyle \frac{S}{J} = \mathbf{ \frac{3}{2}}\)
\(\displaystyle S= \frac{3}{2} \cdot J\)
Therefore;
\(\displaystyle (3.15 - 0.68) \cdot J + (2.2 - 0.68) \cdot S = (3.15 - 0.68) \cdot J + (2.2 - 0.68) \cdot \frac{3}{2} \cdot J = \mathbf{368,500}\)
Which gives;
\(\displaystyle (3.15 - 0.68) \cdot J + (2.2 - 0.68) \cdot \frac{3}{2} \cdot J = \mathbf{ \frac{19 \cdot J }{4} } = 368,500\)
\(\displaystyle J = \frac{368,500 \times 4}{19} = \frac{1474000}{19}=77578\frac{18}{19} \approx 77,579\)
The number of bottles of apple juice sold, J ≈ 77,579 bottles
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The table represents a quadratic function C(t). t C(t) −2 1 −1 4 0 5 1 4 2 1 What is the equation of C(t)?
The quadratic function is C(t) = - t² + 5.
We know the equation of the parabola will be given as,
y = a(x - h)² + k
From the table, the coordinate of the vertex will be at (0, 5).
So, the equation can be
C(t) = a(t - 0)² + 5
C(t) = at² + 5
Since, the equation is passing through the point (1, 4)
4 = a (1²) + 5
4 = a + 5
a = - 1
Thus, the required equation is C(t) = - t² + 5.
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