Answer:
C
Step-by-step explanation:
14/25=0.56 0.56x300=168
Based on the survey,
168 students like hip-hop music.
What is ratio?The ratio is a numerical relationship between two values that demonstrates how frequently one value contains or is contained within another.
Given:
Marty conducted a survey in his first period class to determine student preferences for music.
Out of 25 students, 14 like hip-hop music best.
That means, the ratio is 14/25 = 0.56.
There are 300 students in Marty's school.
Based on the survey,
the number of students = 300 x 0.56 = 168 students like hip-hop music.
Therefore, 168 students like hip-hop music.
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A sphere has a radius of 5 inches. What is its volume?
4
Sphere V= 3
2. Substitute the radius into the formula:
V = 4659
2. Evaluate the power
V = 4(125)
3 Simplify:
VE
It in
Find the area of this parallelogram.
A)
20 cm2
B)
24 cm²
40 cm²
Answer:
It's 40cm²
Step-by-step explanation:
Base times height.
Carly used 15 centimeters of tape to wrap 3 presents. How many presents did Carly wrap if she used 45 centimeters of tape? Assume the relationship is directly proportional.
A store is having a buy one get one 30% off sale. During the sale Christopher buys two pairs of shoes that each have a regular price of 48$. How much does Christopher pay for the two pairs of shoes?
Consider the function y = 4x + 5 between the limits of z = 1 and 2 = 5. a) Find the arclength L of this curve: L= Round your answer to 3 significant figures. b) Find the area of the surface of revolution, A, that is obtained when the curve is rotated by 2 radians about the a-axis. Do not include the surface areas of the disks that are formed at z = 1 and a = 5. A Round your answer to 3 significant figures.
Answer: 84π √(17) (rounded to 3 significant figures)
a) To find the arc length of the given curve we need to first evaluate the derivative of y w.r.t. x:dy/dx = 4. The arclength of the curve is given by L = ∫√(1+(dy/dx)^2) dx The value of dy/dx is already given and hence we can substitute the value and integrate .L = ∫√(1+(4)^2) dx = ∫√(17) dx Between the limits z = 1 and 2, x varies from 9 to 13. We need to substitute these values in the integral. L = ∫√(17) dx = √(17) * [x]9^13= √(17) * [13 - 9]= 4 √(17)Answer: 4√17 (rounded to 3 significant figures)
b) The area of the surface of revolution, A, that is obtained when the curve is rotated by 2 radians about the a-axis is given by:A = ∫2π * y √(1+(dy/dx)^2) dx We know that dy/dx = 4 and the value of y is given by 4x+5.A = ∫2π * (4x+5) √(1+(4)^2) dx= ∫2π * (4x+5) √(17) dx Between the limits z = 1 and 2, x varies from 9 to 13. We need to substitute these values in the integral. A = ∫2π * (4x+5) √(17) dx = 2π * √(17) * ∫(4x+5) dx= 2π * √(17) * [2x^2/2 + 5x]9^13= 2π * √(17) * [(26 + 60) - (18 + 20)]= 84π √(17)
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I am the number that is 40 less than the largest number u can make using five of the digits what number am I
Only can use 1 8 3 4 9 6 2 7 I think
Answer:
9 876 391
Step-by-step explanation:
arrange the numbers in ascending order
9 876 391
subtract 40 from the number
9876431 - 40
9 876 391
Mrs. Hall records the height of 50 students in a spreadsheet the mean height is 60 inches after looking at the date again she realize that the two other observations were allies it must’ve been typos 82 and 86 inches she deleted these two observations what is the new mean rounded to the nearest hundredth
Answer:
67. 33 inches
Step-by-step explanation:
[50(68) - 82 - 86] / 48 = 67.33Find the inverse of the one-to-one function. State the domain and the range of the inverse function. {(2, 11), (3, -4), (4, -1), (5, -14), (6, 1)} The inverse function is The domain of the inverse function is The range of the inverse function is
The inverse function is given by the set of points {(11, 2), (-4, 3), (-1, 4), (-14, 5), (1, 6)}, the domain of the inverse function is {11, -4, -1, -14, 1}, and the range of the inverse function is {2, 3, 4, 5, 6}.
To find the inverse of the one-to-one function defined by the given set of points {(2, 11), (3, -4), (4, -1), (5, -14), (6, 1)}, we need to swap the x-values with the y-values to obtain the reversed pairs of points.
The inverse function is {(11, 2), (-4, 3), (-1, 4), (-14, 5), (1, 6)}.
The domain of the inverse function is the set of all x-values from the original function, which in this case is {11, -4, -1, -14, 1}.
The range of the inverse function is the set of all y-values from the original function, which in this case is {2, 3, 4, 5, 6}.
Therefore, the inverse function is given by the set of points {(11, 2), (-4, 3), (-1, 4), (-14, 5), (1, 6)}, the domain of the inverse function is {11, -4, -1, -14, 1}, and the range of the inverse function is {2, 3, 4, 5, 6}.
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please answer asap
i will mark brainliest
Which equation can be used to solve for in the following diagram?
Choose 1 answer:
А) 105 + (50 – 70) = 90
B) 105 + (5x – 70) = 180
C) 105 = (5x – 70)
D) 105 +90 = (5x - 70)
Answer:
C) 5x-70=105
Step-by-step explanation:
As marked in the graph, angle 105 and angle (5x-70) equal to each other because they are vertically opposite angles therefore we have equation C)
I don’t have time to do it help me please
Answer:
4=3 5=10 6= YOu would add more dots accordingly 7=4
Step-by-step explanation:
hoped this helped!
2.07x2.4 plz help quick i need this
Answer:
2.07x2.4=4.968
Step-by-step explanation:
Answer:
4.968
Step-by-step explanation:
My restaurant budget should not go over $100. If I bought main dish for $50 and $12 for each pizza, how many pizza's can I buy?
inequality :
50 + 12x ≤ 100
How many pizza's can I buy?
Answer:
x = 25
Step-by-step explanation:
50 + 12x <_ 100
12x <_ 100 - 50
12x <_ 50
x <_ 50 / 12
x <_ 25
You can buy about 4 pizzas.
I didn't use the way that I probably should have but you can subtract 50 from 100 and then divide the 50 by 12 and you will get 4.1666667.
Please help 6th grade math please please help
Step-by-step explanation:
the beginning number is the beginning of your range the last number is the end of your range
If you add Natalie's age and Fred's age, the result is 42. If you add Fred's age to 3 times
Natalie's age, the result is 70. Write and solve a system of equations to find how old Fred and
Natalie are.
Answer:
N+F=42 & F+3N=70 System Solved: Natalie is 14 and Fred is 28
Step-by-step explanation:
Using variables N=natalies age and F=Freds age
N+F=42 ----> N=42-F (take this and plug it into the other equation)
F+3N=70 so F+3(42-F)=70 [simplify] F+126-3F=70 [further simplify]
-2F=-56 [divide -56 by -2] F=28 [then plug this number into the orig. equation]
So N+28=42 or N=14.
I need help on this plz
here is the question PLEASE HELP!!!!!
Answer:
What is the question?
I can't see any question.
Figure out the x-intercept and y-intercept in given equation of the line.
6x + 2y = 12
Answer:
x intercept=2
y intercept=6
Step-by-step explanation:
to find x and y intercepts, plug in 0 for x and y
x intercept-
6x+2(0)=12
6x=12
x=2
y intercept-
6(0)+2y=12
2y=12
y=6
7
not using theorem in book. prove statement:
Let n be an integer. If a and b are integers such that a is
divisible by n and b is divisible by a, then a − b is divisible by
n
To prove the statement, let's assume that a and b are integers such that a is divisible by n and b is divisible by a.
Since a is divisible by n, we can write a = kn for some integer k.
Similarly, since b is divisible by a, we can write b = am for some integer m.Now, let's find the difference a - b:
a - b = kn - am
Factoring out common terms, we get:
a - b = n(k - m)
Since k and m are integers, their difference (k - m) is also an integer.
Therefore, we have expressed a - b as the product of n and an integer (k - m), which means that a - b is divisible by n.
Hence, we have proved that if a and b are integers such that a is divisible by n and b is divisible by a, then a - b is divisible by n, without using any specific theorem from a book.
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Find the eigenvalues and eigenvectors for the state equation -2 11 x + 4 Show all working. * = 1 [d]u
The eigenvalue of the state equation is -2 and the corresponding eigenvector is [0].
To obtain the eigenvalues and eigenvectors of the given state equation, we need to solve the characteristic equation.
The state equation is represented as follows:
[d/dt]x = -2x + 11u
y = 4x
To obtain the eigenvalues λ, we set up the characteristic equation:
|A - λI| = 0
Where A is the coefficient matrix, λ is the eigenvalue, and I is the identity matrix.
The coefficient matrix A is:
A = -2
The identity matrix I is:
I = 1
Substituting these values into the characteristic equation, we have:
|-2 - λ| = 0
Simplifying the equation, we get:
-2 - λ = 0
Solving for λ, we find:
λ = -2
So, the eigenvalue of the state equation is -2.
To obtain the eigenvector, we substitute the eigenvalue back into the equation (A - λI)x = 0.
For λ = -2, we have:
(-2 - (-2))x = 0
-2x = 0
Solving for x, we find:
x = 0
Therefore, the eigenvector corresponding to the eigenvalue -2 is [0].
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Based on the figures below, are they similar?
Answer:
N/A
Step-by-step explanation:
No figures below.
Fitting a straight line to a set of data yields the following prediction line.
Y_i = 14 - 0.2X_i I
nterpret the meaning of the Y-intercept, b_0.
The Y-intercept (b_0 = 14) represents the predicted value of Y when X is zero.
In the given prediction line equation, Y_i = 14 - 0.2X_i, the Y-intercept is represented by the term '14', which is the coefficient of the constant term.
The Y-intercept, denoted as b_0, represents the predicted value of the dependent variable (Y) when the independent variable (X) is equal to zero. In this case, when X is zero, the equation becomes:
Y_i = 14 - 0.2(0) = 14
Therefore, the Y-intercept (b_0 = 14) represents the predicted value of Y when X is zero. It is the point where the prediction line intersects the Y-axis. In practical terms, it means that when the independent variable has no effect or has a value of zero, the predicted value of the dependent variable is 14.
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Use animation function in Matlab to visualize the
standing wave that is written as
(, ) = sin(z) sin (2),
Note: you can assume reasonable values for �
The animation function in Matlab can be used to visualize the standing wave that is written as(, ) = sin(z) sin (2). Here are the steps to do it:
Step 1: Define the values of x, y, and z coordinates. Let's say we assume the values of x, y, and z coordinates as follows:x = 0:0.01:1;y = 0:0.01:1;z = 0:pi/100:pi;
Step 2: Use meshgrid to create a grid of coordinates from the x, y, and z vectors. This creates a matrix of coordinates that can be used in the sin function. [X,Y,Z] = meshgrid(x,y,z);
Step 3: Use the sin function to calculate the values of the standing wave at each point in the grid. s = sin(Z).*sin(2*X);
Step 4: Use the animation function to visualize the standing wave as it oscillates. Here is the code for this:for i = 1:size(s,3) surf(s(:,:,i)) view(2) shading interp axis tight caxis([-1 1]) drawnow end
The animation function displays the standing wave as it oscillates in the z direction. The surf function is used to create a surface plot of the wave at each time step. The view function sets the camera view to 2D, and the shading interp function interpolates the colors between the vertices of the surface plot. The axis tight function sets the limits of the x, y, and z axis to the range of the data.
The caxis function sets the color scale to -1 to 1, which corresponds to the range of the sin function. The drawnow function updates the plot at each time step.
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Solve: 3x - 18 = 6
Please answer and give the correct answer. Thank You! :)
Answer:
x = 8
Step-by-step explanation:
Hope this helps have a great day
Using a ruler and a pair of compasses, construct a right-angled triangle with a base of 5 cm and a hypotenuse of 11 cm. You must show all of your construction lines. Measure the angle opposite the base to the nearest degree.
A right-angled Triangle with a base of 5 cm and a hypotenuse of 11 cm. Measure the angle opposite the base using a protractor to obtain the nearest degree measurement.
To construct a right-angled triangle with a base of 5 cm and a hypotenuse of 11 cm, follow these steps:
1. Start by drawing a straight line using a ruler. This will serve as the base of the triangle. Label the endpoints as A and B.
2. Use a compass to draw a circle with a radius of 11 cm, centered at point A. This circle will intersect the base at point C and define the hypotenuse of the triangle.
3. With the compass still set to the radius of 11 cm, draw another circle centered at point C. This circle will intersect the first circle at point D.
4. Connect points B and D with a straight line segment. This line will be perpendicular to the base AB and will form the height of the triangle.
5. Measure the length of the line segment BD using a ruler. If it measures 5 cm, then you have successfully constructed a right-angled triangle with the given dimensions.
6. To find the angle opposite the base, use a protractor to measure the angle at point B. Place the center of the protractor at point B and align the base line AB with the zero-degree mark. Read the angle measurement at the intersection of the protractor and the line segment BD. Round the measurement to the nearest degree.
The angle opposite the base can vary depending on the accuracy of the construction. Measure the angle using the protractor and record the nearest degree measurement.
When performing geometric constructions and providing measurements, it is important to ensure academic integrity and avoid plagiarism. Plagiarism involves using someone else's work or ideas without proper attribution. To maintain originality, it is necessary to express the information in your own words and provide accurate measurements based on the construction process.
In conclusion, by following the steps construct a right-angled triangle with a base of 5 cm and a hypotenuse of 11 cm. Measure the angle opposite the base using a protractor to obtain the nearest degree measurement.
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I just need the answer
Question: what’s the volume?
rounded to the thousands place :) thank you!!
5e^3x – 4 = 31
Step-by-step explanation:
Add 4 to both sides: 5e^3x = 35, or
Steves pattern: 4, 25, 130, 665. what is steves pattern?
Answer: (4+1)*5=25; (25+1)*5=130; (130+1)*5=655.
Step-by-step explanation:
1. What is the diameter of a circle with radius of 7 inches?
Answer:
14 because the radius is half the diameter
Step-by-step explanation:
Answer:
The answer should be D=14in
Someone help me please need ASAP
Answer:
x = 1/2
Step-by-step explanation:
all of its sides are equal;
4x - 6 = 2x - 5
2x = 1 , x = 1/2
The probability distribution of a game is shown in the table. Find the expected number of points won per play. Round to the nearest tenth if needed.
a) 5.7 b) 4.5 c) 4.7 d) 5
Answer:
4.5
Step-by-step explanation:
I just did this lesson and i just guessed, but i got it wrong and it said the answer was 4.5. basically, you multiply the fractions and the number value first,(like 1/6 X 0) and you do that to all of them. and then you add up all your answers, simplify them and put it in decimal form. and you get 4.5. hopefully that made enough sense.