Answer:
V=37.68
Step-by-step explanation:
The formula for the volume of a cone is V=1/3πr^2h. First, plug the values in to the varibles to get V=1/3π3^2(4), since 3 is the radius and 4 is the height. Now simplify the equation.
V=1/3π3^2(4)
V=1/3π9(4)
V=1/3π36
Multiply 36 by pi, which the equation wants you to use as 3.14.
V=1/3(113.04)
Now simplify to get V=37.68.
I hope this helps! Have a great day/night!
suppose you are researching the eating habits of people your age. what sampling method could you use to find the percent of students in your grade who eat five servings of fruit and vegetables each day? what is an example of a survey question that does
A random sampling method could be used to find the percentage of students in your grade who eat five servings of fruit and vegetables each day.
Why is this the best sampling method to be used?This method involves selecting a random sample of students from the entire population of your grade and surveying them about their eating habits.
In other word, its involves randomly selecting a subset of students from the entire grade population and collecting data on their eating habits. By selecting students at random, the sample is more likely to be representative of the entire grade. This cam provide accurate insights into the percentage of students meeting the desired dietary recommendation.
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If f(x) = x+10, find f(7)
\(f(x)=x+10\\\\f(7)=(7)+10\\\\f(7)=17\)
the answer is 17.
Answer:
The answer is 17, x±10 =10+7= 17
El triángulo ABC es equilátero y L, M y N son los puntos medios de BC, AB y CA respectivamente. Si MN = 3, ¿cuál es el valor de ML?
The value of ML = 3, using the mid-point theorem of triangles.
According to the midpoint theorem, "the line segment of a triangle crossing the midpoints of two sides of the triangle is said to be parallel to its third side and also half the length of the third side."
In the question, we are given that triangle ABC is an equilateral triangle, and L, M, and N are the midpoints of BC, AB, and CA respectively.
Thus, by the midpoint theorem, we can say that:
MN || BC, and MN = (1/2)BC,ML || AC, and ML = (1/2)AC, andNL || AB, and NL = (1/2)AB.Assuming AB = BC = AC = x units, we get:
MN = (1/2)BC = x/2,ML = (1/2)AC = x/2, andNL = (1/2)AB = x/2.
Thus, the triangle LMN is an equilateral triangle.
Thus, MN = ML = NL.
Given MN = 3, we can write the value of ML = 3.
Thus, the value of ML = 3, using the mid-point theorem of triangles.
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The given question is in Spanish. The question in English is:
"Triangle ABC is equilateral and L, M, and N are the midpoints of BC, AB, and CA respectively. If MN = 3, what is the value of ML?"
Edwerd deposited $10,000 into a savings account 4 years ago. The simple interest rate is 2%. How much money did edwerd earn in interest? Substitute the values into the equation. Interest=$ _x_x_years
Answer:
Interest = $10000 x 0.02 x 4 = $800
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Find all the zeroes of the equation. x 4 – 6 x 2 – 7 x – 6 = 0
Answer:
±√7 and ±√6
Step-by-step explanation:
Let's denote x^2 as y, then the equation becomes:
y^2 - 6y - 7y - 6 = 0
y(y - 6) - 7(y - 6) = 0
(y - 7)(y - 6) = 0
Substituting back y with x^2, we get:
(x^2 - 7)(x^2 - 6) = 0
Solving each factor separately:
x^2 - 7 = 0 or x^2 - 6 = 0
x^2 = 7 or x^2 = 6
x = ±√7 or x = ±√6
Therefore, the zeroes of the equation are ±√7 and ±√6.
n the metric system, each millimeter increment is equal to _____.A. 1/1000 of a centimeterB. 1/100 of a centimeterC. 1/10 of a centimeterD. 10 centimeters
The answer is C. 1/10 of a centimeter.
To anybody who is really good at math can you click on the image and answer the 4 questions please and thanks!
he diameter of a circle is 8 centimeters. What is the circle's circumference?
Use 3.14 for .
Answer:
25.12 cm
Step-by-step explanation:
The circumference of a circle is
C = pi * d
C = 3.14 * 8
C =25.12 cm
Answer:
The circle's circumference is 25.13 centimeters.
Step-by-step explanation:
C=2pi*r where r=radius
Since the diameter of a circle is 8 centimeters,
we know that the radius is 4 centimeters.
C=2pi*4=8pi=25.13
Una caja de 25 kg se encuentra en reposo sobre un plano inclinado de 30 grados. Si la fuerza de rozamiento es de 50 N, ¿cuál es la magnitud de la fuerza que se debe aplicar paralela al plano para que la caja suba el plano con una aceleración de 2 m/s²?
The magnitude of the force that must be applied parallel to the plane is 92 N, under the condition that the box moves up the plane with an acceleration of 2 m/ s².
The force needed to move a box up an inclined plane can be evaluated as
Fp = W sin α = m ag sin α
Here
Fp = pulling force (N),
W = weight of the box (N),
α = angle of incline (degrees),
m = mass of the box (kg),
a = acceleration of the box (m/s²), and
g = acceleration due to gravity (9.8 m/s²).
For the given case, we possess a 25 kg box at rest on a 30 degree incline with a friction force of 50 N acting on it.
Now
We have to evaluate the weight of the box using
W = mg
= 25 kg x 9.8 m/s²
= 245 N.
Then, we have to calculate the force required to overcome friction using Ff = μFn where μ is the coefficient of friction and Fn is the normal force acting on the box. Since the box is at rest on an incline, Fn can be calculated as Fn = W cos α = 245 N cos(30°) ≈ 212 N. Therefore, Ff = μFn = 0.2 x 212 N ≈ 42 N.
Now we can evaluate the force applied to move the box up the incline utilizing
Fp = ma + Ff
Here,
a = desired acceleration
Ff = frictional force acting on the box.
Staging the values
Fp = ma + Ff
Fp = (25 kg)(2 m/s²) + 42 N
Fp ≈ 92 N
Hence, a force of approximately 92 N must be applied parallel to the plane so that the box moves up the plane with an acceleration of 2 m/s².
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The complete question is
A 25 kg box is at rest on a 30 degree incline. If the friction force is 50 N, what is the magnitude of the force that must be applied parallel to the plane so that the box moves up the plane with an acceleration of 2 m/ s²?
A small fruit basket costs $8 and a large fruit basket costs $24. The small basket
contains 6 apples and 4 pears. The large basket contains 18 apples and 12 pears.
a. Write a system of linear equations to represent this situation.
b. Can you find the unit price of each fruit?
Answer:One apple is 1.17
One pear 0.25
See below :)
Step-by-step explanation:
(65 points) ASAP!!! Warren is building shelves for his 3-D printed model collection. He has a piece of wood that is 4.5 feet long. After cutting five equal pieces of wood from it, he has 0.7 feet of wood left over.
Part A: Write an equation that could be used to determine the length of each of the five pieces of wood he cut. (1 point)
Part B: Explain how you know the equation from Part A is correct. (1 point)
Part C: Solve the equation from Part A. Show every step of your work. (2 points)
Answer:
Total wood = 4.5 Left over wood = 0.7 let 1 piece of wood = x
hence we have 5x+0.7=4.5
5x=4.5 - 0.7
5x = 3.8 x= 3.8/5 = 0.76 ft
Step-by-step explanation:
Answer:
A: 5x + 0.7 = 4.5
B: You know the equation is correct because it takes into account that Warren cut five pieces of wood that are equal in length from a 4.5 feet long piece of wood. The total length of the five pieces of wood should equal the length of the original piece of wood, minus the leftover wood he has. In other words, 5x represents the total length of the five pieces of wood cut, and 0.7 represents the amount of wood left over after the cutting.
C: 0.76 feet
Step-by-step explanation:
Part A:
Let x be the length of each of the five pieces of wood cut from the 4.5 feet long piece of wood. The equation that could be used to determine the length of each piece is:
5x + 0.7 = 4.5
Part B:
You know the equation is correct because it takes into account that Warren cut five pieces of wood that are equal in length from a 4.5 feet long piece of wood. The total length of the five pieces of wood should equal the length of the original piece of wood, minus the leftover wood he has. In other words, 5x represents the total length of the five pieces of wood cut, and 0.7 represents the amount of wood left over after the cutting.
Part C:
5x + 0.7 = 4.5
5x = 4.5 - 0.7
5x = 3.8
x = 3.8/5
x = 0.76
Therefore, each of the five pieces of wood that Warren cut is 0.76 feet long.
Factorise fully
15
b
+
20
\(15b \: + 20\)
Take 5 common from both the terms.\( = 5(3b + 4)\)
3b + 4 cannot be factorised further.Answer:
5(3b + 4)
Hope you could understand.
If you have any query, feel free to ask.
Answer:
\( \longmapsto \: 15b + 20\)
\( \longmapsto \: 5(3b + 20)\)
What is the 18th term of the arithmetic sequence -13, -9, -5, -1, 3,...? A. A(18) = 55 B. A(18) = 59 C. A(18) = -81 D. A(18) = -153
The 18th term of the arithmetic sequence -13, -9, -5, -1, 3,... is 55. Thus, the right answer is option A. which is A(18) = 55
Arithmetic Progression is a sequence of numbers in which the difference between two numbers in the series is a fixed definite value.
The specific number in the arithmetic progression is calculated by
\(a_n=a_1+(n-1)d\)
where \(a_n\) is the term in arithmetic progression at the nth term
\(a_1\) is the initial term in the arithmetic progression
d is the difference between two consecutive terms
In the given question, \(a_1\) = -13
d = -9 - (-13) = 4
Therefore, to calculate the 18th term,
\(a_{13}=a_1+(18-1)d\)
= -13 + (17) 4
= -13 + 68
= 55
Hence, the 18th term of the above AP is 55
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you know that stores tend to charge different prices for similar or identical products, and you want to test whether or not these differences are, on average, statistically significantly different. you go online and collect data from 3 different stores, gathering information on 15 products at each store. you find that the average prices at each store are: store 1 xbar
Since the calculated F value of 31.47 is much greater than the critical value of 3.13, we reject the null hypothesis at the 0.05 level of significance. This means that there are statistically significant differences in prices between at least two of the three stores.
How to test for significance among the store pricesHypotheses:
H₀: There are no systematic price differences between the stores
Hₐ: There are systematic price differences between the stores
The degrees of freedom for between-groups (stores) is
dfB = k - 1 = 3 - 1 = 2, where k is the number of groups (stores).
The degrees of freedom for within-groups (products within stores) is
dfW = N - k = 15 x 3 - 3 = 42, where N is the total number of observations.
Assume the significance level is 0.05.
The F-statistic is calculated as:
F = (SSB/dfB) / (SSW/dfW)
where SSB is the sum of squares between groups and SSW is the sum of squares within groups.
ANOVA table
Kindly find the table on the attached image
To determine whether to reject or fail to reject H0, compare the F-statistic (F) to the critical value from the F-distribution with dfB and dfW degrees of freedom, at the α significance level.
The critical value for F with dfB = 2 and dfW = 42 at 0.05 significance level is 3.13
Conclusion:
Since the calculated F value of 31.47 is much greater than the critical value of 3.13, we reject the null hypothesis at the 0.05 level of significance. This means that there are statistically significant differences in prices between at least two of the three stores.
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Question is incomplete, find the complete question below
You know that stores tend to charge different prices for similar or identical products, and you want to test whether or not these differences are, on average, statistically significantly different. You go online and collect data from 3 different stores, gathering information on 15 products at each store. You find that the average prices at each store are: Store 1 xbar = $27.82, Store 2 xbar = $38.96, and Store 3 xbar = $24.53. Based on the overall variability in the products and the variability within each store, you find the following values for the Sums of Squares: SST = 683.22, SSW = 441.19. Complete the ANOVA table and use the 4 step hypothesis testing procedure to see if there are systematic price differences between the stores.
Step 1: Tell me H0 and HA
Step 2: tell me dfB, dfW, alpha, F
Step 3: Provide a table
Step 4: Reject or fail to reject H0?
the center of a circle is at (-2 -7) and its radius is 36
Answer:
y² + 14y + x² + 4x + 45 = 1296
Step-by-step explanation:
Chain of thought reasoning: Step 1: Calculate the equation of the circle: (x + 2)² + (y + 7)² = 36² Step 2: Simplify the equation: x² + 4x + 4 + y² + 14y + 49 = 1296 Step 3: Solve for x: x² + 4x + (y² + 14y + 45) = 1296 Step 4: Simplify the equation: x² + 4x + y² + 14y + 45 = 1296 Step 5: Solve for y: y² + 14y + (x² + 4x + 45) = 1296 Step 6: Simplify the equation: y² + 14y + x² + 4x + 45 = 1296 Step 7: The final equation of the circle is: y² + 14y + x² + 4x + 45 = 1296
The center of a circle is located at (-2, -7), and its radius is 36 units.
In a Cartesian coordinate system, the center of a circle is represented by the coordinates (h, k), where h represents the x-coordinate and k represents the y-coordinate. In this case, the center of the circle is (-2, -7), indicating that the circle is centered 2 units to the left and 7 units down from the origin (0, 0).
The radius of a circle is the distance from the center to any point on the circumference. Given that the radius is 36 units, it means that any point on the circle is 36 units away from the center. This implies that if we draw a line segment from the center to any point on the circle, its length would be 36 units.
Combining the information about the center (-2, -7) and the radius of 36 units, we can describe the circle as a set of points that are equidistant from the center (-2, -7) and lie on the circumference with a radius of 36 units.
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The distance of a golf ball from the hole can be represented by the right side of a parabola with vertex (-1,8). The ball reaches the hole 1 second
after it is hit, at time 0.
What is the equation of the parabola, in vertex form, that represents the ball's distance from the hole, y, at time x?
y =
(x +
Answer:
Let's suppose that the hole is at y = 0m, where x is the time variable.
we know that:
The vertex is (-1s, 8m).
(i suppose x in seconds and y in meters)
At x = 1s, the ball reaches the hole, so we also have the point:
(1s, 0m).
Remember that the vertex of a quadratic equation y = a*x^2 + b*x + c is at:
x = -b/2a,
then we have:
-1 = -b/2a.
Then we have tree equations:
8m = a*(-1s)^2 + b*-1s + c
0m = a*(1s)^2 + b*1s + c
-1s = -b/2a.
First we should isolate one variable in the third equation, and then replace it in one of the other two:
1s*2a = b.
So we can replace b in the first two equations bi 1s*2a.
8m = a*1s^2 - 1s*2a*1s + c
0m = a*1s^2 + 1s*2a*1s + c
We can simplify both equations and get:
8m = a*( 1s^2 - 2s^2) + c = -a*1s^2 + c.
0m = a*(1s^2 + 2s^2) + c = a*3s^2 + c.
Easily we can isolate c in the second equation and then replace it into the first equation:
c = -a*3s^2
The first equation becomes:
8m = -a*1s^2 - a*3s^2 = -a*4s^2
a = 8m/-4s^2 = -2m/s^2.
Now with a, we can find the values of c and b.
c = -a*3s^2 = -(-2m/s^2)*3s^2 = 6m.
b = 1s*2a = 1s*(-2m/s^2) = -2m/s.
Then the equation is:
y = (-2m/s^2)*t^2 + (-2m/s)*t + 6m
Factor out the greatest common factor. If the greatest common factor is 1, just retype the polynomial. 3d^2+9d
Answer:
3d^2-9d
=3d(d-3)
Therefore,GCF IS 3d
the product of the square of x and y
Answer: (xy) squared
Marco needs to buy some dog food. At the nearest store, 5 bags of dog food cost $27.50. How much would Marco spend on 3 bags of dog food?
Answer:
$16.50
Step-by-step explanation:
$27.50/5=5.5
5.5*3=16.5
Answer:
What we can do is calculating what one bag cost. If we know that 5 cost 27.50 dollars, to know how much does one cost we only divide:
27.50/5 = 5.50 dollars
Now, we know how much does one bag cost, so we multiply it by three:
5.50 * 3 = 16.50
Now, we know 3 bags cost 16.5 dollars
5E. Express the given fraction below in the simplest form.
Answer:
9/10
Step-by-step explanation:
3 1/3 can be written as 10/3
then we have 3/10/3 we then have 3x3/10 which equals 9/10.
Please help brainiest !!
Answer:
2760 ft^3
Step-by-step explanation:
volume of a cube formula:Length * width* height
volume of the big cube= 11*10*22
= 2420 ft^3
volume of the small cube=7*4*10
=280 ft^3
now to find the total volume= volume of the big cube + volume of the small cube
=2420 + 280
=2760 ft^3
Last year , Henry opened an investment account with 5800. At the end of the year ,the amount in the account had increased by 29.5 how much is this increase in dollars?How much money was in his account at the end of las year?
Answer:
Percent increase in dollar = $1,711Total in account = $7,511Step-by-step explanation:
The money in the account had increased by 29.5%.
This increase in dollars is:
= Amount in account * percentage increase
= 5,800 * 29.5%
= 5,800 * 0.295
= $1,711
The total in his account was therefore:
= Amount invested + increase
= 5,800 + 1,711
= $7,511
A distribution of probabilities for random outcomes of a bivariate or dichotomous random variable is called a Group of answer choices binomial probability distribution distribution of expected values random variable distribution mathematical expectation
A distribution of probabilities for random outcomes of bivariate or dichotomous random variables is called (A) binomial probability distribution.
What is a binomial probability distribution?The binomial distribution with parameters n and p in probability theory and statistics is the discrete probability distribution of the number of successes in a succession of n separate experiments, each asking a yes-no question and each with its own Boolean-valued outcome: success or failure.The binomial distribution is widely used to describe the number of successes in a sample of size n selected from a population of size N with replacement. If the sampling is done without replacement, the draws are not independent, and the resulting distribution is hypergeometric rather than binomial. Binomial probability distribution refers to a distribution of probabilities for random outcomes of bivariate or dichotomous random variables.As the description itself says, binomial probability distribution refers to a distribution of probabilities for random outcomes of bivariate or dichotomous random variables.
Therefore, a distribution of probabilities for random outcomes of bivariate or dichotomous random variables is called (A) binomial probability distribution.
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Complete question:
A distribution of probabilities for random outcomes of bivariate or dichotomous random variables is called a ______.
Group of answer choices
(A) binomial probability distribution
(B) distribution of expected values
(C) random variable distribution
(D) mathematical expectation
30+2k+5k=100
This is my question may you help me:)
the table shows the amount of rainfall above or below average for little town in 2015 and 2016.how much more rainfall did little town receive 2016 than in 2015 2015 -4.17 2016 +2.95
The more rainfall little town will receive 2016 than in 2015 is 7.12
What is associative property of addition?Suppose you've got 3 numbers as a, b, and c.
Then, we have
(a+b) + c = a + (b + c)
This property is called associative property and it is called so because we can associate b with a, or b with c without altering the value of the addition.
Given;
2015 -4.17
2016 +2.95
To find out the more rainfall in 2016;
We will add the two numbers
=4.17 +2.95
=7.12
Therefore, the rainfall after addition will be 7.12
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What is the slope of the linear function?
Answer:
the slope is \(\frac{7}{4}\)
Step-by-step explanation:
Given: 4y - 7x = 10; solve y
4y - 7x = 10; add 7x to both sides to isolate the 4y variable
4y = 7x + 10; now divide by 4
y = \(\frac{7}{4}\)x + \(\frac{10}{4}\); reduce the fraction
y = \(\frac{7}{4}\)x + \(\frac{5}{2}\); the slope is
Answer:
m= 7/4
Step-by-step explanation:
PLEASE HURRY !! Which point is located at (2, -3)?
Answer:
the answer is K for (2,-3)
Patrick is excited to attend his son’s soccer game tomorrow
evening, but he also needs to ensure his daughter arrives at her
coding class on time. Patrick is debating whether taking the train
or his
Personal car would be the best option to manage both tasks efficiently. While the train is a reliable mode of transportation, it may have fixed schedules that might not align perfectly with Patrick's needs.
On the other hand, using his personal car provides more flexibility and allows him to tailor the departure time according to his daughter's coding class schedule.
If Patrick decides to take the train, he would need to check the train schedule to see if there are convenient departure and arrival times for both the soccer game and the coding class. This option would require planning and coordination to ensure he arrives at the game on time and can pick up his daughter afterward.
Using his personal car gives Patrick the freedom to leave at a time that accommodates both the soccer game and the coding class. He can drop off his daughter at her coding class, attend the soccer game, and then pick her up afterward without being restricted by train schedules.
Considering the circumstances, Patrick might find it more convenient to use his personal car to manage both tasks effectively and ensure he can attend his son's soccer game while also ensuring his daughter arrives at her coding class on time.
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A package of breakfast bars has 12 breakfast bars in it. The total weight of the breakfast bars in the package is
552 grams. The mass of each breakfast bar is the same. What is the mass in grams of each breakfast bar?
Assume IBM just paid a dividend of $4.50 and expects these dividends to grow at 8.00% each year. The price of IBM is $130 per share. What is IBM's Cost of Equity based on DGM? 12.42% 12.86% 11.74% 12.
IBM's Cost of Equity based on DGM is 11.46%.
Dividend growth model (DGM) refers to a valuation model used to estimate the price of an investment using predicted dividends and expected growth rates of dividends over a particular period. The equation for DGM is as follows:
P = D1 / (Ke - G)
where:
P = The price of the stock
D1 = The expected dividend to be paid at the end of the year
Ke = The cost of equity
G = The expected dividend growth rate
Therefore, to determine IBM's Cost of Equity based on DGM we can use the given information as follows:
D1 = $4.50
G = 8.00%
Ke = ?
P = $130
Therefore,
Ke = (D1 / P) + G
Ke = ($4.50 / $130) + 0.08
Ke = 0.0346 + 0.08
Ke = 0.1146
Ke = 11.46%
Therefore, IBM's Cost of Equity based on DGM is approximately 11.46%
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