Answer:
the angle made by that line is tangent
Mel randomly selects a coin 200 times selecting a penny 45 times A. The experimental probability of 9 selecting a penny is 40 B. The theoretical probability of 6 selecting a penny is 25 C. The difference between the experimental 1 and theoretical probability is 10 What is the wrong answer?
Answer:
the wrong answer is C, but the right answer is A
How many 7-letter passwords can you make from the letters A, B, C, D, E, F and G, if letters CANNOT be repeated?
Question
You divide two polynomials and obtain the result 5x2−13x+47−102x+2. What is the dividend?
Answer:
5x2−115x+49
Step-by-step explanation:
hope it helps
5x²-115x+49 is the required dividend.
What is dividend?A dividend is a number that is being divided, if 2x is a dividend and 2 is a divisor, then it gives remainder 2, when 2x is divided by 2.
The given polynomial is,
5x²-13x+47-102x+2
To find dividend, simplify this polynomial,
5x²-115x+49
This is the required dividend.
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What is a reasonable estimate for the solution?
A. (2 1/3, -4 3/4)
B. (-4 3/4, 2 1/3)
C. (2 2/3, -4 1/2)
D. (-4 1/2, 2 2/3)
Answer:
im pretty sure its d
Step-by-step explanation:
Answer:
D would be the correct answer.
have a blessed day
Step-by-step explanation:
Joe has a cube shaped box that needs to be filled with packaging material If the length of one side 2 feet, then what is the volume of the box?
B. Optimizing Multivariable Functions Optimize z = 3x² - xy + 2y² - 4x - 7y + 12. 1. Find the critical points at which the function may be optimized. 2. Determine whether at the computed points, the
The critical points are (2,1) and (0,0). Given, z = 3x² - xy + 2y² - 4x - 7y + 12.1. Find the critical points at which the function may be optimized.
To find the critical points, we need to solve the following system of equations: ∂z/∂x = 0, ∂z/∂y = 0∂z/∂x = 6x - y - 4 = 0∂z/∂y = -x + 4y - 7 = 0By solving these equations, we get two critical points: (2,1) and (0,0).2. Determine whether at the computed points, the function takes on its maximum or minimum value.
To determine whether each critical point is a maximum, minimum, or saddle point, we need to compute the second partial derivatives of z: ∂²z/∂x² = 6, ∂²z/∂y² = 4, ∂²z/∂x∂y = -1At the point (2,1), the second partial derivatives satisfy the condition (∂²z/∂x²)(∂²z/∂y²) - (∂²z/∂x∂y)² = (6)(4) - (-1)² = 25 > 0 and ∂²z/∂x² > 0, so z has a minimum value at this point.At the point (0,0), the second partial derivatives satisfy the condition (∂²z/∂x²)(∂²z/∂y²) - (∂²z/∂x∂y)² = (6)(4) - (-1)² = 25 > 0 and ∂²z/∂x² > 0, so z has a minimum value at this point.Therefore, the function z = 3x² - xy + 2y² - 4x - 7y + 12 is optimized at (2,1), where the minimum value is z = 3(2)² - (2)(1) + 2(1)² - 4(2) - 7(1) + 12 = -10.
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what is the difference between ka and kb and what is the mathematical relationship between them?
Ka and Kb are both acid-base equilibrium constants, but they apply to different types of reactions. Ka (acid dissociation constant) is used to describe the dissociation of an acid in water, while Kb (base dissociation constant) is used to describe the dissociation of a base in water.
Specifically, Ka is a measure of the strength of an acid in terms of how easily it donates a proton (H+) to a solvent like water. A higher Ka value indicates a stronger acid, while a lower Ka value indicates a weaker acid. Kb, on the other hand, is a measure of the strength of a base in terms of how easily it accepts a proton (H+) from a solvent like water. A higher Kb value indicates a stronger base, while a lower Kb value indicates a weaker base. There is a mathematical relationship between Ka and Kb for conjugate acid-base pairs, which are molecules or ions that differ by the presence or absence of a single proton. The relationship is expressed by the equation: Ka x Kb = Kw, where Kw is the ion product constant for water, which is 1.0 x 10⁻¹⁴ at 25°C. This relationship shows that the stronger the acid, the weaker its conjugate base, and vice versa.
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Solve for x. Please show work.
2x + 6 = -3x - 14
A) 16 Miss Violet was in the cafeteria.
B) -16 Mrs. Teal was in the library.
C) 3.2 Mr. Brown was in the auditorium.
D) -4 Ms. Ivory was in the student center.
E) 4 Prof. Gray was in the library.
Answer:
D
Step-by-step explanation:
2x+6=-3x-14
2x+3x=-14-6
5x=-20
x=-4
Answer:
X = -4
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
use the second derivative test for concavity and the phase line to produce a phase portrait and sketch one typical solution curves in each region determined by the equilibrium solutions
if the second derivative is negative, then the first derivative is decreasing, Graphically, we see this as the curve. of the graph being concave down, that is, shaped like a parabola open downward.
The second derivative tells whether the curve is concave up or concave down at that point. If the second derivative is positive at a point, the graph is bending upwards at that point. Similarly if the second derivative is negative, the graph is concave down.
When second derivative is positive concavity?
If the second derivative is positive at a point, the graph is concave up at that point. If the second derivative is positive at a critical point, then the critical point is a local minimum. If the second derivative is negative at a point, the graph is concave down.
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Pls help ASAP i don’t have time!!!!!
Answer:
8.9
Step by Step explanation:
20.5/14.7=1.64
12.5/1.64=8.9
Factor completely.
Show all work.
a) ²−7−18
b) 2²−26+24
c) 10²+37+7
d) ²−25
e) 42−4+1.
f) 144²−36
Answer: First find the GCF ( greatest Common Factor):-
GCF of 16, 24 and 48 is 8
GCF of the x terms is x^3
GCF of the y terms is y^4
So GCF is 8x^3y^4
Factoring:-
= 8x^3y^4 ( 2x^6y^4 - 16x^2y^2 + 3) answer
Step-by-step explanation:
5. Find the Fourier coefficients of the periodic ( -5 to 5) function y(t) = -3 when -5
In summary, the Fourier coefficients for the periodic function y(t) = -3 on the interval -5 ≤ t ≤ 5 are:
c₀ = -3 (DC component)
cₙ = 0 for n ≠ 0 (other coefficients)
To find the Fourier coefficients of the periodic function y(t) = -3 on the interval -5 ≤ t ≤ 5, we can use the formula for Fourier series coefficients:
cn = (1/T) ∫[t₀-T/2, t₀+T/2] y(t) \(e^{(-i2\pi nt/T)}\) dt
where T is the period of the function and n is an integer.
In this case, the function y(t) is constant, y(t) = -3, and the period is T = 10 (since the interval -5 ≤ t ≤ 5 spans 10 units).
To find the Fourier coefficient c₀ (corresponding to the DC component or the average value of the function), we use the formula:
c₀ = (1/T) ∫[-T/2, T/2] y(t) dt
Substituting the given values:
c₀ = (1/10) ∫[-5, 5] (-3) dt
= (-3/10) \([t]_{-5}^{5}\)
= (-3/10) [5 - (-5)]
= (-3/10) [10]
= -3
Therefore, the DC component (c₀) of the Fourier series of y(t) is -3.
For the other coefficients (cₙ where n ≠ 0), we can calculate them using the formula:
cₙ = (1/T) ∫[-T/2, T/2] y(t)\(e^{(-i2\pi nt/T) }\)dt
Since y(t) is constant, the integral becomes:
cₙ = (1/T) ∫[-T/2, T/2] (-3) \(e^{(-i2\pi nt/T)}\) dt
= (-3/T) ∫[-T/2, T/2] \(e^{(-i2\pi nt/T)}\) dt
The integral of e^(-i2πnt/T) over the interval [-T/2, T/2] evaluates to 0 when n ≠ 0. This is because the exponential function oscillates and integrates to zero over a symmetric interval.
all the coefficients cₙ for n ≠ 0 are zero.
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PLZ HELP….
A music store originally purchased a piano at a cost of $892.03 and marked it up 125%. After a few weeks,
however, the store discounted the piano 50% in order to make room for new merchandise. What was the
discounted price?
Answer:
$557.52
Step-by-step explanation:
Solve for marked up price:
892.03 × 1.25
1115.0375
Solve for discounted price:
1115.0375 × 0.50
557.51875
Round up to nearest hundredths place:
557.52
Your answer may vary depending on if you rounded your first answer (1115.0375), but it should be only a decimal or two off from my final answer.
half between 3/10 and 4/5
Answer:
5/11
Step-by-step explanation:
first change the fraction to where they have common denominators=4/5=8/10
then add 3/10 and 3/10=11/10=1 1/10
after u divide 1 1/10 by 1/2=5/11
A researcher conducted a one-sided hypothesis test for a proportion (Ha:p>po) and obtained a test statistic of 4.318. Which of the following are true? Check all that apply. - The observed sample proportion is 4.318 standard deviations above the claimed value po. - The large value of the test statistic means that our observed data are not surprising when the null hypothesis is true. - The researcher should fail to reject the null hypothesis. - When the null hypothesis is true, the test statistic comes from a standard normal distribution. - There is a 4.318% chance that the alternative hypothesis is true.
This statement is true, as the test statistic represents the number of standard deviations between the observed sample proportion and the claimed value (po) under the null hypothesis.
- The large value of the test statistic means that our observed data are not surprising when the null hypothesis is true. This statement is false. A large test statistic implies that the observed data is surprising when the null hypothesis is true, which means there is evidence against the null hypothesis.
- The researcher should fail to reject the null hypothesis. This statement is false. A large test statistic suggests evidence against the null hypothesis, so the researcher should reject the null hypothesis in favor of the alternative hypothesis.
- When the null hypothesis is true, the test statistic comes from a standard normal distribution. This statement is true, as the test statistic follows a standard normal distribution when the null hypothesis is true.
- There is a 4.318% chance that the alternative hypothesis is true. This statement is false. The test statistic does not directly provide the probability of the alternative hypothesis being true. Instead, we can use the test statistic to calculate the p-value, which represents the probability of obtaining a test statistic as extreme as the observed one, assuming the null hypothesis is true.
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Help me please I am struggling
Answer: 1. C
Step-by-step explanation: I can only understand number 1. nothing else makes sense (maybe I'm just too dum)
what is the distance of the line drawn between points (-1,-2) and (-9,4)?
Answer:
10
Step-by-step explanation:
what is limit definition of a derivative?
The limit definition of a derivative is a mathematical method used to calculate the instant rate of change of a characteristic at a particular point. it is based at the idea of the limit of a function because the input techniques a certain cost.
The limit definition of a derivative is expressed as follows:
\(f'(x) = lim (h → 0) [f(x + h) - f(x)] /h\)
Wherein f'(x) represents the derivative of the function f(x) at a particular factor x. The expression \(( f(x + h) - f(x)) / h\) represents the common price of alternate of the characteristic over a small interval of size h, focused at x. The limit of this expression as h approaches 0 represents the instant fee of change of the characteristic at x, or the slope of the tangent line to the function at that factor.
The limit definition of a derivative is a fundamental concept in calculus and is used to calculate the slopes of tangent lines, to find maximum and minimum factors, and to clear up optimization issues in a huge variety of packages.
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In a certain country, a telephone number consists of six digits with the restriction that the first digit cannot be 8 or 7. Repetition of digits is permitted. Complete parts (a) through (c) below. a) How many distinct telephone numbers are possible?
The number of distinct telephone numbers possible given the restriction is 800,000.
Given that :
A telephone number consists of six digits.The first digit cannot be 8 or 7.Number of distinct Telephone NumbersFor the first digit, there are 8 options available (digits 0-6 and 9, excluding 7 and 8).
For the remaining five digits (second to sixth), there are 10 options available for each digit (digits 0-9).
Therefore, the total number of distinct telephone numbers possible can be calculated by multiplying the number of options for each digit:
Total number of distinct telephone numbers = 8 * 10 * 10 * 10 * 10 * 10 = 8 * 10⁵ = 800,000
Hence, there are 800,000 distinct telephone numbers possible in this country.
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A line contains the points (6,8), (-2, k) and (-10, 4). What is the value of k?
Answer:
k = 6
Step-by-step explanation:
Step 1: Find slope m
m = (4 - 8)/(-10 - 6)
m = -4/-16
m = 1/4
y = 1/4x + b
Step 2: Find b
4 = 1/4(-10) + b
4 = -5/2 + b
b = 13/2
Step 3: Rewrite equation
y = 1/4x + 13/2
Step 4: Find k
y = 1/4(-2) + 13/2
y = -1/2 + 13/2
y = 12/2
y = 6
Answer: 6
Step-by-step explanation:
As you move left to right on the x-coordinate, your y value is increasing. If you notice, the x values are increasing by eight at a time. So, if you take the value in between 4 and 8, you get your answer, which is 6.
Identify Structure If a linear function is continuous, it has an infinite number of solutions. Which representation(s), equation, table, or graph, show(s) all of the solutions? Explain. Select all that apply.
Multiple select question.
A)
Equations represent all of the solutions of a function by using variables to represent any number.
B)
Tables represent all of the solutions of a function by showing the output values for every possible input value.
C)
Graphs represent all solutions by using lines to show that solutions continue on in both directions.
D)
None of these represent all solutions. It is not possible to represent all solutions with a table, graph, or equation.
The option D) None of these represent all solutions. It is not possible to represent all solutions with a table, graph, or equation is correct.
Although a linear function with continuous behavior has an infinite number of solutions, it is not possible to represent all of them with a table, graph, or equation.
An equation represents a function's solutions by using variables to represent any number, but it cannot show all solutions at once. Similarly, a table can show output values for every input value, but it is impossible to list all possible input values.
Graphs represent solutions by using lines, but they cannot show all solutions simultaneously. Therefore, none of these representations can show all possible solutions.
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Can someone explain me?:(
Can someone plz help me with this one problem plz I’m being timed!!!!!
Answer:
#2
Step-by-step explanation:
type the equation in2 the desmos graphing calculator
A square floor has a side length of 8xcubedysquared units. a square tile has a side length of xy units. how many tiles will it take to cover the floor
To cover the square floor with a side length of 8xcubedysquared units using square tiles with a side length of xy units, it will take (64xy^2)/(8xcubedysquared) tiles.
The area of the floor can be calculated by squaring the side length of the floor:
Area of the floor = (8xcubedysquared)^2 = 64x^2(cubedysquared)^2 = 64x^2(cubedysquared)(cubedysquared)
The area of each tile is given by squaring the side length of the tile:
Area of each tile = (xy)^2 = x^2y^2
To determine the number of tiles required to cover the floor, we divide the area of the floor by the area of each tile:
Number of tiles = (Area of the floor) / (Area of each tile) = (64x^2(cubedysquared)(cubedysquared)) / (x^2y^2) = (64xy^2) / (8xcubedysquared)
Thus, it will take (64xy^2)/(8xcubedysquared) tiles to cover the square floor.
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A residual is the difference between _______.
A residual is the difference between "the measured and predicted values of the quantity of interest".
What is residuals?In regression analysis, a residual would be the difference between an observable and anticipated value.
The formula is;
Residual = Observed value – Predicted value
Some key features regarding the residuals are-
The purpose of linear regression would be to quantify the relationship among one or so more predictor variables one and or more response variables. Linear regression selects the line that best "fits" the data, defined as least squares regression line, to do this. This line generates a prediction for every observation in the dataset, however it is improbable that the regression line's prediction would perfectly match its observed value.The residual is the discrepancy between the predicted and the observed value. The residuals for every observation would represent the vertical distance between both the observation as well as the regression line if we plotted the observed values then overlaid the fitted regression line.To know more about the residual, here
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(simplify)
i will give brainliest if correct
3 √2x8
3√2 × 8
= (3 × 8) √2
= 24√2
= 33.941
= 34 (approx.)
______
Hope it helps!
RainbowSalt2222 ☔
the answers of 3 √2x8 is 12
help plZ As far as possible 20 point!!!!
Answer:
Use Desmos graphing calculator!
Hope this helps!
What is the range of the following graph? Please don’t put down any links.
Answer:
[-4, infinity)
Step-by-step explanation:
The range is all the y values. The minimum is -4, and the maximum is infinity because there are arrows pointing upwards.
What’s the center of the hyperbola
What’s the left vertex?
What’s the other vertex?
The vertex is the point on the curves with minimum distance from focus and the center is the midpoint between the vertices.
A set of points on a plane such that they have a positive and constant absolute difference from its 2 fixed points is called a hyperbola.
The two separate curves of a hyperbola are called its branches. The point on each branch with a minimum distance from the focus is called the vertices of the hyperbola.
It is the midpoint between the vertice that is called the center.
Here, we can see that the center is marked by (h,k) while the left vertex is (h - a , k)and (h + a , k)
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Is 3/4y=9 true or false
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Answer:
Let's solve your equation step-by-step.
3 / 4 y = 9
Step 1: Multiply both sides by 4/3.
(4 / 3 ) * ( 3 / 4 y ) = ( 4 / 3 ) * ( 9 )
y = 12
Answer:
y = 12
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Insert 12 to the y value:
3 / 4 ( 12 ) = 9
9 = 9
True
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Answer:
Yes, True
3/4y = 9
y = 12
Step-by-step explanation:
1. Multiply both sides by the fractions reciprocal
3/4y *4/3 = 9 *4/3
2. Simplify
2a. Cancel terms that are in both the numerator and denominator
y =12