Answer:
x ≤ 19
Step-by-step explanation:
The instructions here are probably "solve for x." Please include them.
4 - x + 6^2 ≥ 21
becomes 4 - x + 36 ≥ 21
Now combine like terms. 4 and 36 combine to 40: 40 - x ≥ 21, and so:
19 - x ≥ 0
Adding x to both sies results in
x ≤ 19
Please, include the instructions when you post a question. Thanks.
wave interference that results in greater wave amplitude is called_____.
Wave interference that results in greater wave amplitude is called Constructive interference.
What is Wave Interference?
Wave interference is a physical phenomena that occurs when two waves collide while traveling through the same medium. Waves interact in two ways.
a) Constructive Interference - In this case, the two waves cancel each other out because their amplitudes are equal and opposite.
b) Destructive Interference - This occurs when two waves add to each other as they travel in the same direction, resulting in a wave with a longer wavelength.
It is Constructive interference.
Therefore, Wave interference that results in greater wave amplitude is called Constructive interference.
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find the length of the curve. r(t) = 9t i 8t3/2 j 4t2 k, 0 ≤ t ≤ 1
The length of the curve is approximately 34.10 units.
To find the length of the curve described by the vector-valued function r(t) = 9t i + \(8t^{(3/2)}\) j + 4t² k, where 0 ≤ t ≤ 1, we can use the arc length formula:
L = ∫ √[dx/dt)² + (dy/dt)² + (dz/dt)² ] dt
First, let's find the derivatives of each component of the vector r(t):
dx/dt = 9
dy/dt = (\(8t^{3/2}\))) * (3/2) * (2/\(\sqrt{t}\)) = 12t² /\(\sqrt{t}\) = 12\(t^{(5/2)}\)
dz/dt = 8t
Next, we substitute these derivatives into the arc length formula:
L = ∫ √[(dx/dt)² + (dy/dt)² + (dz/dt)² ] dt
L = ∫ √[9² + (12t^(5/2))² + 8² ] dt
L = ∫ √[81 + 144t⁵ + 64] dt
L = ∫ √[144t⁵ + 145] dt
Now we integrate with respect to t:
L = ∫ \((144t⁵ + 145)^{(1/2)}\) dt
This integral can be challenging to solve analytically. However, we can approximate the length using numerical methods such as numerical integration techniques or software.
Using numerical integration software, we find that the length of the curve is approximately 34.10 units.
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1 + 1 = ? help now please asap!
Question:
1 + 1 = ? help now please asap!
Answer:
1 + 1 = 2
hope this helps :)
a cirle has circumference 23.2 cm. What is the area of the circle? use 3.14 for pi
Answer:
42.9 cm
Step-by-step explanation:
Area of a circle is A = pi r²
to get r (radius) from circumferance. r = C/ (2 pi)
pi = 3.14
f(x)=3x-1 and g(x)=2x+3 and find f(g(3))
Answer:
Explanation:
First we evalaute g(x) at x = 3
\(g(3)=2(3)+3\)\(\begin{gathered} =6+3 \\ =9 \end{gathered}\)\(g(3)=9\)Now we evaluate F(g(3)) by putting in g(3) = 9.
\(f(g(x))=3g(x)-1\)\(f(g(3))=3g(3)-1\)\(=3\cdot9-1\)\(\begin{gathered} =27-1 \\ =26 \end{gathered}\)Hence,
\(f(g(x))=26\)which is our answer!
A class of 20 students is visiting the fair today. Each student is 16 years old or younger and will participate in either the Hay Bale Toss or the Pie Eating Contest. If all 20 students joined the same event, how would the shape of the histogram change compared to the original
In either the Hay Bale Toss or Pie Eating Contest, the graph's range of 0-19 will be extended by 20.
What is graphs?Mathematicians use graphs to logically convey facts or values using visual representations or charts. A graph point will typically reflect a relationship between two or more things. Nodes, or vertices, and edges make form a graph, a non-linear data structure. Glue together the nodes, often referred to as vertices.
In either the Hay Bale Toss or Pie Eating Contest, the graph's range of 0-19 will be extended by 20. 20 students attended the fair, total. Group age = 0 to 16
This age range is located in the histogram's first interval, which is 0–19. The graph for the pie eating competition would remain the same if all 20 pupils had participated in the hay bale toss, with the bar representing 0–19 rising from 40 to 60.
The graph of the Hay Bale Toss would remain same if all 20 pupils had participated in the Pie Eating Contest, increasing the bar of 0-19 from 20 to 40.
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Help me out quickly please? 10 points
Answer:
Area = 254.34 inches²
Step-by-step explanation
Area of circle:radius = diameter ÷2
r = 18 ÷ 2
r = 9 inches
Area = πr²
= 3.14 *9 * 9
= 254.34 inches²
Answer:
A≈254.47in²
Ta-da
gifford has an annuity that pays $125 at the beginning of each month. if the economy grows at a rate of 3.89% annually, what is the value of the annuity if he received it in a lump sum now rather than over a period of ten years? (2 points)
The value of the annuity if received in a lump sum now would be $16,906.67.
To find the present value of the annuity, we need to discount the future payments by the annual growth rate of the economy. Since the annuity pays $125 per month, the annual payment is $1,500. Using the formula for the present value of an annuity, we can calculate the present value as:
\(PV = A * ((1 - (1 + r)^{-n}) / r)\)
Where PV is the present value of the annuity, A is the annual payment, r is the discount rate (3.89% in this case), and n is the number of periods (120 months in this case).
Substituting the values into the formula, we get:
\(PV = $1,500 * ((1 - (1 + 0.0389)^{-120}) / 0.0389) = $16,906.67\)
Therefore, if Gifford received the annuity in a lump sum now, he would receive $16,906.67.
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suppose x is a normal random variable with and find p(x > 105.0). a) 0.9993 b) 0.9994 c) 0.9995 d) 0.0007 e) 0.0006 f) none of the above.
The value of the probability p(x > 105.0) for the given normal random variable is found as 0.6915.
Explain the term normal random variable?A randomly distributed variable with a mean of 0 and a standard deviation of 1 is referred to as a standard random variable. The letter Z will always stand in for it. regularly distributed random variable, also known as a with standard deviation, is a continuous random variable which probabilities are defined by the normal distribution of mean and standard deviation.For the stated question -
The formula for the z score -
z = (x - μ)/σ
In which,
μ = 140 and σ = 20
Put the values-
z = (150 - 140)/20
z = 0.5
p(x > 105.0) = p(z > 0.5)
p(x > 105.0) = 0.6915
Thus, the value of the probability p(x > 105.0) for the given normal random variable is found as 0.6915.
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The complete question is-
suppose x is a normal random variable with μ = 140 and σ = 20 and find p(x > 105.0).
work out m and c for the line:
y= 3 - 7x
Answer:
I will assume that
you define a line to be y= mx + b
in that case m = -7 and b = 3
but you asked for "c" ... do you define a line to be y = mx + c?
if so then the c = 3
Step-by-step explanation:
6.30 in fraction help
Answer:
63/10
Step-by-step explanation:
...............i think
Answer:
63/10 would be a simplified fraction
Step-by-step explanation:
You convert 6.30 to a mixed number by placing the numbers right of the decimal over 10, reduce the fraction, then convert it to ana improper fraction by multiplying the denominatior by the whole number and adding the numerator to get a new numerator. You then place this over the original denominator
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The grocery store is sell bananas for $0.35 per pound. How much will Aaliyah pay for 3.6 pounds of bananas?
Answer:
1.225
Rounded: $1.23
Step-by-step explanation:
3.6* 0.35
Answer:1.26
Step-by-step explanation:
multiply .35 in to 3.6
SOOO I NEED SOME HLP HERE PLSSSS
Answer:
A
Step-by-step explanation:
you just have to mirror it to the other side. so K lands on (4, 1)
What is the inverse of the function fx) = 2x + 1?
Answer:
X=2y+1
X-1/2=y
can anyone help me solve this
Answer:
B
Step-by-step explanation:
THIS IS HOW YOU CAN FIND ANY MISSING ANGLE - ALSO SOLVES FOR X IN THIS QUESTION.
So, a traingle is 180 degrees.
A line is also 180 degrees.
We know that the angles that make up the triangle are 46, 90, and a missing angle
We need to find the missing angle to find x
To find the missing angle, we must subtract the known angles by the 180 degrees of the traingle.
So:
180-90
=
90
90-46
=
44
So we know the missing angle is 44 degrees.
Let subtract the missing angle(44 degrees) by the 180 degrees of the line:
180-44
=
136
THIS IS WHAT ANSWERS THE OPTION METHOD THAT GIVES THE ANSWER
So x equals 136. This is the missing angle x.
So, remember, both the line and the traingle are 180 degrees.
They both need to find the missing value, which we know is 44
The rest of both the triangle and line is 136 degrees.
Well, 136 degrees on the triangle is the known 90+46 degrees.
Since this will be the same on the line, we can think of x as:
90+46
This looks like answer 1.
Hope this helps! :)
Read top part so you can understand how to do future problems, and write in comments if you are confused/need more help.
If f(x) = x4 − x3 + x2 and g(x) = −x2, where x ≠ 0, what is (f ⁄g)(x)? m
Answer:x − x^{2} − 1.
Step-by-step explanation:
.
The table below gives selected values for the function f(x). Use a trapezoidal estimation, with 6 trapezoids to approximate the value of
Solution
- The formula for finding the integral of a function using the trapezoidal rule is:
\(A=\frac{\Delta x_1}{2}[f(x_0)+f(x_1)]+\frac{\Delta x_2}{2}[f(x_1)+f(x_2)]+...\)- Applying the formula, we have:
\(\begin{gathered} \Delta x_1=1.1-1=0.1,\Delta x_2=1.2-1.1=0.1,\Delta x_3=1.5-1.2=0.3 \\ \Delta x_4=1.7-1.5=0.2,\Delta x_5=1.9-1.7=0.2,\Delta x_6=2.0-1.9=0.1 \\ \\ f(x_0)=f(1)=1 \\ f(x_1)=f(1.1)=2 \\ f(x_2)=f(1.2)=4 \\ f(x_3)=6 \\ f(x_4)=7 \\ f(x_5)=9 \\ f(x_6)=10 \end{gathered}\)- Thus, we can find the Integral as follows:
\(\begin{gathered} A=\frac{0.1}{2}(2+1)+\frac{0.1}{2}(4+2)+\frac{0.3}{2}(6+4)+\frac{0.2}{2}(7+6)+\frac{0.2}{2}(9+7)+\frac{0.1}{2}(9+10) \\ \\ A=\frac{0.3}{2}+\frac{0.8}{2}+\frac{3}{2}+\frac{2.6}{2}+1.6+\frac{1.9}{2} \\ \\ A=5.9 \end{gathered}\)Final Answer
The integral is 5.9
allie has 1 jar of peanut butter that cost 32 cents per ounce. there are 5 ounces in the jar. how much does the jar cost?
Answer:
The peanut butter jar costs 1.60 cents
Step-by-step explanation:
Answer: 160=$1 and 60cents
One of your classmates drew the figure below. Explain why the figure cannot have the labeled dimensions. Describe a way that you could change the dimensions to make the figure possible.
Answer:
according to the figure the width should have the same dimensions e.g if one is 94 the other should be 94 too
expand: -4(2x + 2) +3
Answer:
-8x-8+3
-8x-5
that is the answer for this question and I will send you the link to mp3 and
School rules permit no fewer than 2 teachers per 25 students. There are at least 245 students enrolled in the school. If x represent teachers and y represents students, which system of linear inequalities can be used to determine the possible number of teachers and students at the school?
2y ≥ 25x and y ≥ 245
2y ≤ 25x and y ≥ 245
25y ≤ 2x and y ≥ 245
25y ≥ 2x and y ≥ 245
Answer:
(b) 2y ≤ 25x and y ≥ 245
Step-by-step explanation:
You want the teacher/student ratio to be at least 2/25, so ...
x/y ≥ 2/25
25x ≥ 2y . . . . . multiply by 25y
2y ≤ 25x . . . . . swap sides to get the form used in answer choice B
The other inequality says the number of students is at least 245:
y ≥ 245
Answer:
B- 2y ≤ 25x and y ≥ 245
Step-by-step explanation:
Peep the attachment (proof)
anyone wanna z00m? you have to make it tho.
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Susan buys lotion for $2.33. She gives the clerk a $10 bill, three dimes, and three pennies. What was her change? Write one other combination of coins Susan could use with her $10 bill to get only bills.
The change left when Susan buys lotion for $2.33 and gives the bill is $8.
How to calculate the value?Susan buys lotion for $2.33. She gives the clerk a $10 bill, three dimes, and three pennies. The total amount will be:
= $10 + (3 × 0.1) + (3 × 0.01)
= $10.33
The change left will be:
= Total amount - Cost of lotion
= $10.33 = $2.33
= $8
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3. Pilihan ganda30 detik1 ptQ. How does the arrival of George Murchison change the mood of the scene?George's arrival changes the mood because he doesn't take part in the danceGeorge's arrival changes the mood because he complains that Beneatha is giving them a lecture on their African pastGeorge's arrival changes the mood because he was rich, and they didn't like that a rich white person was in their houseGeorge's arrival changes the mood because he had a gun
Option B) George's arrival changes the mood because he complains that Beneatha is giving them a lecture on their African past
In Act 2 of A Raisin in the Sun, George Murchison's arrival changes the mood of the scene as he complains that Beneatha is giving them a lecture on their African past. George's comments create tension and conflict among the characters, particularly with Beneatha, who is exploring her African heritage. His attitude towards Beneatha's interest in her roots is dismissive and condescending, which generates discomfort and disagreement among the characters. George's arrival highlights the cultural differences between him and the Younger family and demonstrates the generational and ideological divides within the African American community. Thus, his presence is a catalyst for revealing deeper tensions and conflicts within the play.
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Complete question:
How does the arrival of George Murchison change the mood of the scene?
A) George's arrival changes the mood because he doesn't take part in the dance
B) George's arrival changes the mood because he complains that Beneatha is giving them a lecture on their African past
C) George's arrival changes the mood because he was rich, and they didn't like that a rich white person was in their house
D) George's arrival changes the mood because he had a gun
How to solve this question pls help asap
Answer:
answered by g a u t h m a t h
Step-by-step explanation:
A mass-spring-dashpot system is modeled by the differential equation: x ′′ + bx′ + 9x = 4 cos 3t, (4) where b is 1. (a) (5 points) What is the type of oscillatory motion of the mass? Explain. (b) (10 points) Solve the initial value problem in (4) for x(0) = 12, x′ (0) = 0,. Write your solution in the form x(t) = xtr(t) + xsp(t), where xtr(t) is the transient and xsp(t) steady solutions. (c) (3 points) Graph the steady periodic solution, xsp(t), and the transient solution, xtr(t), on the same axes for a suitable range. (d) (4 points) Express your final solution as a simple harmonic oscillation of the form: C cos (ωt − α), and the constants C, α, ω. (e) (3 points) Graph the solution of (4). Clearly identify the period and time lag in the graph. Use grid paper
The mass-spring-dashpot system exhibits damped oscillations. The damping coefficient is equal to 1, so the system is critically damped. This means that the oscillations will die away quickly without overshooting. The solution to the initial value problem is given by x(t) = C cos(ωt − α), where C, α, and ω are constants. The period of the oscillation is 2π/ω.
The differential equation x′′ + bx′ + 9x = 4 cos 3t can be rewritten as x′′ + x′ + (9 − 4ω2)x = 0, where ω = 3 is the frequency of the forcing function. The damping coefficient is b = 1, so the system is critically damped. This means that the characteristic equation of the differential equation has two real roots, which are given by r1,2 = −1/2 ± √3/2. The general solution to the differential equation is then given by x(t) = C1e−t/2(√3 − 1) + C2e−t/2(√3 + 1), where C1 and C2 are constants of integration. The initial conditions x(0) = 12 and x′(0) = 0 uniquely determine the constants C1 and C2, and the solution is given by x(t) = 12 cos(3t) − 6t sin(3t).
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How many 1/3 cups are in 2/3 cup?
Answer: 2 , 1/3 cups
Step-by-step explanation:
1/3 is the base number and 2/3 is another third being added onto the singular 1/3. The awnser would be 2 because 1/3+1/3= 2/3 or 2/3/2= 1/3
Molly transformed the parent absolute value function by shifting it 3 units up and 4 units right as part of her homework. Which of the following functions reflects the transformation Molly did to the graph?
Answer:
(x) = │ x - 4│+ 3
Step-by-step explanation:
just did it for a test
Geometry question on quizziz need help. Plz and thanks