Answer: 4
Step-by-step explanation:
If you have 12 feet of ribbon and it takes 3 feet per gift 3feet will go into 12 4 times.
Answer: she can wrap 4 presents
Step-by-step explanation:
12 divided by 3 equals 4, and if each present needs 3 feet of ribbon, there will be enough for 4 presents with no ribbon left over
Mr. Nicholas invested $4,250 into an account that pays 3.5% interest, compounded annually. How much will Mr. Nicholas’s investment be worth after 8 years?
Answer:
$5596.44
Step-by-step explanation:
$4250*(1.035)^8= $5596.44
Given f(x) = 5(x-6)³ + 4, classify each statement about f-1(x) as t
as true or false.
The point of symmetry on f-1 (x) is (4, 6).
The domain of f(x) is (-∞0, 4).
The graphs of f(x) and f(x) are reflections across the x axis.
The range of f-1(x) is (-∞, ∞).
The point of symmetry on f⁻¹(x) is (4, 6) which is false.
The domain of f(x) is (-∞, 4) which is false.
The graphs of f(x) and f(x) are reflections across the x-axis which is also false.
The range of f⁻¹(x) is (- ∞, ∞) which is true.
What is the inverse function?Let the function f is given as
y = m(x + a) + c
Then the inverse function of the function f will be given by swapping x with y and y with x.
The function is given below.
f(x) = 5(x - 6)³ + 4
The inverse function of the function f(x) is given as,
x = 5(y - 6)³ + 4
y = ∛[(x - 4) / 5] + 6
f⁻¹(x) = ∛[(x - 4) / 5] + 6
The graph of the function and inverse function is given below.
The point of symmetry on f⁻¹(x) is (4, 6) which is false.
The domain of f(x) is (-∞, 4) which is false.
The graphs of f(x) and f(x) are reflections across the x-axis which is also false.
The range of f⁻¹(x) is (- ∞, ∞) which is true.
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for infinity car wash, the arrival rate is 9 / hour and the service rate is 16 / hour. the arrival and service distributions are not known so we can't use the m/m/1 formulas. if the average waiting time in the line is 23 minutes, then how many customers (waiting and being served) are at the carwash
The approximate number of customers (waiting and being served) at the carwash is 3.
To determine the number of customers (waiting and being served) at the carwash, we can use Little's Law, which states that the average number of customers in a system is equal to the average arrival rate multiplied by the average time spent in the system.
In this case, the average arrival rate is 9 customers per hour, and the average waiting time is given as 23 minutes (which is equivalent to 23/60 = 0.3833 hours).
Using Little's Law, we can calculate the average number of customers in the system:
Average number of customers = Average arrival rate * Average time spent in the system
Average number of customers = 9 customers/hour * 0.3833 hours
Average number of customers = 3.4497 customers
Since we can't have fractional customers, we round the value to the nearest whole number.
Therefore, the approximate number of customers (waiting and being served) at the carwash is 3.
It's important to note that this calculation assumes steady-state conditions and that the arrival and service distributions are not known.
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can someone help me with this one question pls i will give 50 points
Step-by-step explanation:
Answer: No solution
Desmos Graphing Calculator is a great way to check these things. I'm not a 100% sure on my calculations, but I know Desmos is.
What is “8 - 4(-x + 5)” equivalent too?
Answer:
4x -12
Step-by-step explanation:
8 - 4(-x + 5)
Distribute
8 -4(-x) -4(5)
8 +4x -20
4x -12
answer 4( - 3 + x)
factor expression 4(2 - ( - x + 5)4(2 + x - 5)answer
\(4( - 3 + x)\)
simplify the expression\(8 - 4( - x + 5)\)
answer
\( - 12 + 4x\)
A zebra can run at a constant speed of 0.6 miles per minute. How far can a zebra run in 30 minutes? Choose the equation that could be used to answer this question.
A
d = (0.6)(0.5)
B
30 = 0.6t
C
d = (0.6)(30)
D
0.6 = 30r
Answer:
C
Step-by-step explanation:
hope this works for you :)
Helppppp please (: and thank you
Answer:
5
Step-by-step explanation:
h(x) h(2)
h(x)=x^2-3. h(2)=2^2-3
g(h(2) g(h(2)=5
Ethan is practicing kicking field goals before a football game. He starts by kicking from 22 yards and increases his distance by 3.5 yards
every minute. He uses the equation shown to find the distance of his kicks (y), in yards, after different numbers of minutes (x).
y = 3.5x + 22
After how many minutes will Ethan be kicking from 50 yards?
a 4
6 7
8
d 9
Which fraction below is equivalent to 7/8?
A.) 50/56
B.)63/72
C.) 49/64
D.) 15/16
Answer:
C
Step-by-step explanation:
just simplied them
A machine used to fill cans of Campbell’s tomato soup (low salt) has the following characteristics: µ = 12 ounces and s = .5 ounces.
a. Depict graphically the sampling distribution of all possible values of , where is the sample mean (point estimator) for 30 cans selected randomly by a quality control inspector.
b. What is the probability of selecting a sample of 36 cans with a sample mean greater than 12.2 ounces?
1. The x-axis represents the sample mean (\(\bar x\)), and the y-axis represents the probability density.
2. The probability represents the area under the standard normal curve to the right of z = 2.197.
What is probability?Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is.
a. To depict the sampling distribution of all possible values of the sample mean, we can use a probability distribution graph, specifically a normal distribution graph.
Given that the population mean (µ) is 12 ounces and the population standard deviation (s) is 0.5 ounces, and assuming that the sample size is sufficiently large (n = 30), we can use the Central Limit Theorem to approximate the sampling distribution of the sample mean as a normal distribution.
The mean of the sampling distribution (\(\mu_\bar x\)) will be the same as the population mean, which is 12 ounces.
The standard deviation of the sampling distribution (\(\sigma_\bar x\)) can be calculated using the formula \(\sigma_\bar x\) = s / √n, where s is the population standard deviation and n is the sample size. In this case, \(\sigma_\bar x\) = 0.5 / √30 ≈ 0.091 ounces.
Using these values, we can plot a normal distribution curve with the mean at 12 ounces and the standard deviation of 0.091 ounces. The x-axis represents the sample mean (\(\bar x\)), and the y-axis represents the probability density.
b. To find the probability of selecting a sample of 36 cans with a sample mean greater than 12.2 ounces, we need to calculate the area under the sampling distribution curve to the right of 12.2 ounces.
First, we need to standardize the value of 12.2 ounces using the formula z = (\(\bar x\) - \(\mu_\bar x\)) / \(\sigma_\bar x\), where \(\bar x\) is the given sample mean, \(\mu_\bar x\) is the mean of the sampling distribution, and \(\sigma_\bar x\) is the standard deviation of the sampling distribution.
In this case, \(\bar x\) = 12.2 ounces, \(\mu_\bar x\) = 12 ounces, and \(\sigma_\bar x\) = 0.091 ounces.
z = (12.2 - 12) / 0.091 ≈ 2.197
Now, we can find the probability using the standard normal distribution table or statistical software. The probability represents the area under the standard normal curve to the right of z = 2.197.
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I need help with my Alg 2 work.
Help quickly if possible.
Thanks.
Positive value of a vertically stretches the graph of f when a > 1 or shrinks the graph of f when a < 1. h translates the graph of f to the left when h < 0 or right when h > 0.
What are some examples of how exponential functions are employed in mathematics and in real life?Several real-world scenarios use exponential functions, including population increase, compound interest, radioactive decay, and the spread of diseases. For instance, an exponential function may be used to simulate the expansion of a bacterial population, with the rate of increase being proportional to the population size. Similarly, compound interest, which applies the rate of interest to the principal sum across a number of periods, can be represented by an exponential function.
Positive value of a vertically stretches the graph of f when a > 1 or shrinks the graph of f when a < 1. h translates the graph of f to the left when h < 0 or right when h > 0 and k translates the graph of f up when k > 0 and down when k < 0.
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PLEASE I NEED HELP
What is the slope-intercept form of the linear equation 2x + 3y = 6?
Answer:
y= 2/3x + 2
Step-by-step explanation:
triangle A'B'C is created by dilating triangle ABC by a scale factor of 4. what is the length of AB? The length of A'B'
Answer:
The length of AB is 20 units
Step-by-step explanation:
The given parameters from the graph for coordinates A and B are;
The coordinates of the point A = (1, 4)
The coordinates of the point B = (4, 8)
The length of segment AB is given by the equation for finding the distance, d between two points given their coordinates as follows;
\(d = \sqrt{\left (y_{2}-y_{1} \right )^{2}+\left (x_{2}-x_{1} \right )^{2}}\)
Where;
(x₁, y₁) = (1, 4)
(x₂, y₂) = (4, 8)
Substituting gives;
\(d_{AB} = \sqrt{\left (8-4 \right )^{2}+\left (4-1 \right )^{2}} = \sqrt{25} = 5\)
The length of \(\overline {AB}\) = 5
Therefore, given that ΔA'B'C is created by dilating ΔABC by a scale factor of 4, the length of A'B' = 4 × The length of AB
Therefore, the length of \(\overline {A'B'}\) = 4 × The length of \(\overline {AB}\) = 4 × 5 = 20
The length of \(\overline {A'B'}\) = 20 units.
Please help.
Graph RST with vertices R(4,1), S(7,3), and T(6, 4) and its image after the glide reflection.
Translation: (x,y) →(x, y-1)
Reflection: in the y -axis.
Answer:
Points R(4,1) S(7,3) T(6,4) after translation
R(4-3, 1) S(7-3, 3) T(6-3, 4)
R'(1, 1) S'(4, 3) T'(3, 4)
Points R'(1, 1) S'(4, 3) T'(3, 4) after reflection
R''(1, -3) S''(4, -5) T''(3, -6)
Step-by-step explanation:
Answer:Step-by-step explanation:Points R(4,1) S(7,3) T(6,4) after translation R(4-3, 1) S(7-3, 3) T(6-3, 4) R'(1, 1) S'(4, 3) T'(3, 4) Points R'(1, 1) ...
Ezekiel spends t hours each night on his homework and 1/4 of this time studying math. Which equation represents the number of hours, h, Ezekiel will spend doing math homework during the next 5 days?
The equation that represents the number of hours is Math = 5/4h
How to determine the equation that represents the number of hours?The given parameters are
hours = h
days = 5
The total time spent on homework is
Total = hours * days
This gives
Total = h * 5
Evaluate
Total = 5h
He spent 1/4 on math assignment,
So, we have
Math = 1/4 * 5h
Evaluate
Math = 5/4h
Hence, the equation that represents the number of hours is Math = 5/4h
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what is the denominator degrees of freedom of the F statistic for testing the null hypothesis of homoskedasticity
The denominator degrees of freedom of the F statistic for testing the null hypothesis of homoskedasticity is equal to the number of total observations (N) minus the number of groups (k). So, it can be represented as (N - k).
The denominator degrees of freedom of the F statistic for testing the null hypothesis of homoskedasticity depend on the sample size and the number of groups being compared.
In a two-sample test, the denominator degrees of freedom are equal to the total sample size minus the number of groups being compared. In a one-way ANOVA test, the denominator degrees of freedom are equal to the total sample size minus the number of groups being compared minus one. In a two-way ANOVA test, the denominator degrees of freedom are equal to the product of the degrees of freedom for each factor. In general, a higher denominator degrees of freedom value indicates a greater precision in the estimate of the population variance, which is important in determining the accuracy of the F statistic and the significance of the test.Thus, the denominator degrees of freedom of the F statistic for testing the null hypothesis of homoskedasticity is equal to the number of total observations (N) minus the number of groups (k). So, it can be represented as (N - k).Know more about the degrees of freedom
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If f(x) =2x+4 and g(x)=1-x, then which of the following represents y=f(x)+g(x)?
Answer:
y = x +5
Step-by-step explanation:
2x +4 + 1-x = x +5
hope this helps
find the point on the plane 4x − y + 4z = 40 nearest the origin.(x,y,z)=
The point on the plane 4x - y + 4z = 40 nearest the origin is (-3.048, -0.762, 6.467)
Given data ,
To find the point on the plane 4x - y + 4z = 40 nearest the origin, we need to minimize the distance between the origin and the point on the plane.
The normal vector to the plane 4x - y + 4z = 40 is given by (4,-1,4). To find the perpendicular distance from the origin to the plane, we need to project the vector from the origin to any point on the plane onto the normal vector. Let's choose the point (0,0,10) on the plane:
Vector from origin to (0,0,10) on the plane = <0-0, 0-0, 10-0> = <0,0,10>
Perpendicular distance from the origin to the plane = Projection of <0,0,10> onto (4,-1,4)
= (dot product of <0,0,10> and (4,-1,4)) / (magnitude of (4,-1,4))
= (0 + 0 + 40) / √(4^2 + (-1)^2 + 4^2)
= 40 / √(33)
To find the point on the plane nearest the origin, we need to scale the normal vector by this distance and subtract the result from any point on the plane. Let's use the point (0,0,10) again:
Point on the plane nearest the origin = (0,0,10) - [(40 / √(33)) / √(4^2 + (-1)^2 + 4^2)] * (4,-1,4)
= (0,0,10) - (40 / √(33)) * (4/9,-1/9,4/9)
= (0,0,10) - (160/9√(33), -40/9√(33), 160/9√(33))
= (-160/9√(33), -40/9√(33), 340/9√(33))
Hence , the point on the plane 4x - y + 4z = 40 nearest the origin is approximately (-3.048, -0.762, 6.467)
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Suppose that the probability that a particular brand of light bulb fails before 1000 hours of use is 0.3. If you purchase 3 of these bulbs, what is the probability that at least one of them lasts 1000 hours or more?
The probability that at least one out of three bulbs lasts 1000 hours or more is 0.973 or approximately 97.3%.
To solve this problem, we need to use the concept of complementary probability. Complementary probability states that the probability of an event occurring plus the probability of its complement (the event not occurring) equals 1. Therefore, we can find the probability of at least one bulb lasting 1000 hours or more by finding the complement of the probability that all three bulbs fail before 1000 hours.
The probability that a single bulb fails before 1000 hours is 0.3. Therefore, the probability that it lasts 1000 hours or more is 0.7. Using this probability, we can find the probability that all three bulbs fail before 1000 hours as follows:
Probability of all three bulbs failing = 0.3 x 0.3 x 0.3 = 0.027
This means that the probability of at least one bulb lasting 1000 hours or more is the complement of 0.027, which is:
Probability of at least one bulb lasting 1000 hours or more = 1 - 0.027 = 0.973 or 97.3%
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A circle with its dimensions, in centimeters (cm) is shown.
5 cm
What is the circumference, in centimeters, of the circle? Use 3.14 for. Round your answer to the nearest tenth
ANSWET FOR BRAINLIEST NOW
Step-by-step explanation:
add the radii to get the diameter then multipy by pi
10 (3.14) =31.4
What is 5/12 - 1/12 equal to
Since 5/12 and 1/2 have the same denominator, join their numerators to subtract them.
5 - 1/12Subtract 1 from 5 to get 4.
4/12Reduce the fraction 4/12 to its lowest expression by extracting and canceling 4.
1/3Skandary - 3 = -2 ( x + 5 ) in standard form
Answer:
2x + y = -7
Step-by-step explanation:
Standard form is Ax + By = C
A represents the coefficient with x
B represents the coefficient with y
C represents the constants
1 - Rewrite to make it easier to work it out
y - 3 = -2 ( x + 5 )
2 - Distribute
y - 3 = -2x - 10
3 - Get the variables on one side and the constants on the other
y - 3 = -2x - 10
+ 2x + 2x
2x + y - 3 = -10
+ 3 + 3
2x + y = -7
Hope this helps,
The graph shows the total cost tand
the number of shirts n purchased at
a store. Write an equation to express
this relationship. What is the cost of
20 shirts?
surface area of a cube if the sides are 0.7
Answer:
\(SA = 2.94 \, \textrm{units}^2\)
Step-by-step explanation:
The surface area of a regular 3D figure can be represented as:
\(SA = A_{\textrm{\,1 side}} \cdot (\# \textrm{ of sides})\).
Therefore, the surface area of a cube is:
\(SA = s^2 \cdot 6\)
where \(s\) is the length of a side.
To solve this problem, simply input the given side length into the above formula:
\(SA = 0.7^2 \cdot 6\)
and simplify.
\(SA = 0.49 \cdot 6\)
\(SA = 2.94 \, \textrm{units}^2\)
Visible light waves that our eyes see as the color red have a wavelength of about 6.7 x 10-7 meters. What is the frequency of these waves? The speed of light is 3.0 x 10 8 m/s. [v = 1f]
The frequency of these visible light waves that our eyes see is equal to \(4.47\times 10^{-14}\;Hz\)
What is wavelength?Wavelength refers to the distance between two (2) successive crests (troughs) of a wave.
How to calculate frequency.Mathematically, the frequency of a wave is given by this formula:
\(F = \frac{V}{\lambda}\)
Where:
F is the frequency of a wave.V is the speed of a wave.\(\lambda\) is the wavelength of a wave.Substituting the given parameters into the formula, we have;
\(F=\frac{3 \times 10^8}{6.7 \times 10^{-7}} \\\\F=4.47\times 10^{-14}\;Hz\)
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Surface Area of Triangular Prism
Instructions: Find the surface area of each figure. Round your answers to the nearest tenth, if necessary.
PLEASE HELP ME!!!
===================================================
Explanation:
Any triangle prism is composed of 2 parallel triangular faces (base faces), along with 3 rectangular lateral faces.
The bottom triangle face has a base of 10 cm and a height of 4 cm. The area is 0.5*base*height = 0.5*10*4 = 20 square cm. Two of these triangles combine to an area of 2*20 = 40 square cm. We'll use this later.
The lateral surface area of any prism can be found by multiplying the perimeter of the base by the height of the prism. The base triangle has side lengths 5, 8 and 10. The perimeter is 5+8+10 = 23. So the lateral surface area is (perimeter)*(height) = 23*9 = 207
Add this to the total base area we got earlier and the answer is 40+207 = 247. The units are in square cm, which we can write as cm^2.
Luca, Jenalla, Rite, Betty, Tom five people standing side to side in a row. If Rite and Betty must be adjacent and Rite has to be on the right of Betty, how many different arrangements are there?
The number of different arrangements that are there is 72.
Permutation and combinationIf there are 5 people standing with 2 people staying adjacent to each other, hence we can take the 2 people as 1 to have a total of 4.
Hence the number of ways they can be arranged if two people are together is 4! * 2
4! * 2 = 4 * 3 * 3 * 24! * 2 = 72 waysHence the number of different arrangements that are there is 72.
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how many vertices does a full 5-ary tree with 100 internal vertices have?
The total number of vertices a full 5-ary tree with 100 internal vertices have is 501.
What is a M-ary Tree ?A tree with m or less offspring at each node is known as an m-ary tree. When m = 2, a binary tree is the particular case, and a ternary tree, which has m = 3 and a maximum of three offspring, is another special case.
A m-ary tree with just a root node has a height of 0, as the height h of an m-ary tree does not include the root node. The maximum depth D of any tree node determines the height of the tree.
In computer science, a collection of nodes often represented hierarchically in the following way is referred to as a "m-ary tree." At the root node, the tree is initiated. A list of pointers to each node's child nodes is kept by each node in the tree. There are less than or as many child nodes as m.
It is given the m-ary tree as 5-ary tree (m)
And the number of Intervals = 100(i)
We can calculate the number of vertices by using
n = m*i + 1 = 100*5 + 1 = 501
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a triangle has two sides of length 18 and 3. what is the largest possible whole-number length for the third side?
Answer:
20
Step-by-step explanation:
Triangle inequality says that the third side can only be 18-3...15, that is bigger than 15.
And 18+3... 21, that is smaller than 21.
If the third side is 21, the 18 and the 3 will just lay right on top of the 21 and not make a triangle. So it has to be 20 in order to be a whole number.
SOMEONE PLZ HELPPPPP ASAPPPP >_
Answer:
I'm pretty sure its c
Step-by-step explanation:
Answer:
get outta that bed and stop cheating lazy one begging people to do YOUR stuff
Step-by-step explanation: