Answer:
The proof of Pythagorean Theorem in mathematics is very important. In a right angle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. States that in a right triangle that, the square of a (a²) plus the square of b (b²) is equal to the square of c (c²).
which of the intervals (0, 5), (0, 5], [0, 5), [0, 5], (1, 4], [2, 3], (2, 3) contains a) 0? b) 1? c) 2? d) 3? e) 4? f ) 5?
In this case, 0 is contained in the intervals [0, 5),and [0, 5]
How to determineIn the given intervals, we can determine which ones contain the specified numbers as follows:
a) 0 is contained in the intervals [0, 5) and [0, 5] because the square bracket [ ] indicates the endpoint is included.
b) 1 is contained in the intervals (0, 5), (0, 5], [0, 5), [0, 5], (1, 4], and (2, 3) because it lies within the range of these intervals.
c) 2 is contained in the intervals (0, 5), (0, 5], [0, 5), [0, 5], (1, 4], [2, 3], and (2, 3) because it either lies within the range or is an included endpoint.
d) 3 is contained in the intervals (0, 5), (0, 5], [0, 5), [0, 5], (1, 4], [2, 3], and (2, 3) for the same reasons as 2.
e) 4 is contained in the intervals (0, 5), (0, 5], [0, 5), [0, 5], and (1, 4] because it lies within the range or is an included endpoint.
f) 5 is contained in the intervals (0, 5] and [0, 5] because the square bracket [ ] indicates the endpoint is included.
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Solve for the missing length and the other two angles in the triangle below.
By law of cosine, the triangle has a side of 1.348 units and two angles of 129.852° and 35.148°, respectively.
How to find missing lengths and angles in a triangle
In this problem we find the representation of a triangle, in which we must determine the value of a missing side and two missing angles. This can be done by law of cosine. First, find the missing side:
x = √(3² + 4² - 2 · 3 · 4 · cos 15°)
x = 1.348
Second, find the missing angles:
4² = 3² + 1.348² - 2 · 3 · 1.348 · cos α
cos α = - 0.641
α = 129.852°
β = 180° - 15° - 129.852°
β = 35.148°
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M is the midpoint solve for x
Answer:
x = 3
Step-by-step explanation:
5x + 9 = 24
5x = 24 - 9
5x = 15
x = 3
Check:
5(3) + 9 = 24
SM = 24, MT = 24 ✔️
Answer:
Step-by-step explanation:
If M is the midpoint between points S and T, then both sides; SM and ST are equal. This means that 5x + 9 has to equal 24.
5x + 9= 24
5x +9 - 9= 24 - 9
5x= 15
5x / 5 = 15 / 5
x = 3
ANSWER: x = 3
A student cuts a cube perpendicular to its bases. What two dimensional cross section could result from the student slicing the cube perpendicular to its bases
Answer:
Triangle
Step-by-step explanation:
Answer:
Triangle
Step-by-step explanation:
A rectangular solid with sides a and b, and with a height of 20 cm has a volume of 120 cm³. Find the formula which defines b in terms of a. Why is this formula an indirect proportion? What is the domain of this function? A rectangular solid with sides a and b, and with a height of 20 cm has a volume of 120 cm³. Find the formula which defines b in terms of a. Why is this formula an indirect proportion? What is the domain of this function?
Determine whether the statement is true or false. If the statement is false, explain why. The midpoint of the segment joining (0,0) and (38,38) is 19.
The midpoint has coordinates (19,19) as per the midpoint formula.
The statement is false.
The statement is false. The midpoint of the segment joining two points is determined by taking the average of their x-coordinates and the average of their y-coordinates. In this case, the two given points are (0,0) and (38,38).
To find the x-coordinate of the midpoint, we take the average of the x-coordinates of the two points:
(x1 + x2) / 2
= (0 + 38) / 2
= 38 / 2
= 19
Therefore, the x-coordinate of the midpoint is 19, which matches the statement. However, to determine if the statement is true or false, we also need to check the y-coordinate.
To find the y-coordinate of the midpoint, we take the average of the y-coordinates of the two points:
(y1 + y2) / 2
= (0 + 38) / 2
= 38 / 2
= 19
The y-coordinate of the midpoint is also 19. Therefore, the coordinates of the midpoint are (19,19), not 19 as stated in the statement. Since the midpoint has coordinates (19,19), the statement is false.
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Given the pay rate and hours worked, determine the gross earnings, federal taxes (assuming 20% of gross earnings),
state taxes (assuming 6% of gross earnings), social security deduction (assuming 6.45% of gross earnings), total
deductions, and net pay.
1. Gross Earnings
2. Fed. Tax
3. State Tax
4. Soc. Sec.
5. Total Deductions
6. Net Pay
$264.00
$52.80
$17.03
$178.33
$85.67
$15.84
1. The gross income will be $264.
2. The federal tax will be $52.80.
3. The state tax will be $15.84.
4. The social security will be $7.03
5. The total deduction will be $85.67
6. The net pay is $178.33
How to calculate the values?Federal taxes = 20% of gross earnings
state taxes = 6% of gross earnings
social security deduction = 6.45% of gross earnings
Gross Income = $8.25 × 32
Gross Income = $264
Federal Tax will be
Federal Tax = 20% × $264
Federal Tax = $52.80
State Tax will be
State Tax = 6% × $264
State Tax = $15.84
Social Security will be
Social Security = 6.45% × $264.00
Social Security = $17.03
Total Deduction will be as
Total Deduction = Federal Tax + State Tax + Social Security
Total Deduction = $52.80 + $15.84 + $17.03
Total Deduction = $85.67
Net Pay = Gross Income - Total Deduction
Net Pay = $264.00- $85.67
Net Pay = $178.33
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A shift in the supply curve reflects a change in ____?
Answer: Supply
(The answer is supply because the opposite axis in a curve is supply, there's nothing other than that)
Answer: supply
Step-by-step explanation: Just took the test
Newton's Law Of Cooling (Heating) States That An Object Cools (Heats) At A Rate Proportional To The Difference Between The Temperature Of The Object And The Temperature Of Its Surroundings. An Object Of Temperature T0=7∘C Is Introduced Into A Room With Constant Temperature Of Tr=16∘C. Let T(T) Denote The Temperature Of The Object At Time T Minutes
Newton's Law of Cooling states that an object cools down proportional to its temperature difference with its surroundings. To determine T(t) in minutes, use the formula T(t) = Tr + (T0 - Tr)e^(-kt), where T(0), T(10), and k are constants.
According to Newton's Law of Cooling, an object cools or heats down at a rate that is proportional to the difference between the temperature of the object and its surroundings.
Let us assume that an object having a temperature of T0 = 7°C is placed inside a room with a constant temperature of Tr = 16°C. The temperature of the object at time T minutes is represented by T(T).The formula for Newton's Law of Cooling is:T(t) = Tr + (T0 - Tr)e^(-kt)where T(t) is the temperature of the object at time t, Tr is the temperature of the room, T0 is the initial temperature of the object, and k is the constant of proportionality. Now, we need to find the value of k to determine T(t) for any time t in minutes. To do that, we will use the given information that the object cools down from 7°C to 5°C in the first 10 minutes. Then, we can write:T(0) = T0 = 7°C T(10) = 5°C
Substituting these values in the formula, we get:5 = 16 + (7 - 16)e^(-10k) Simplifying this expression, we get:e^(-10k) = -11/18 Taking the natural logarithm of both sides, we get:-10k = ln(-11/18) Solving for k, we get:k ≈ 0.1383 Therefore, the temperature of the object at any time t (in minutes) can be found using the formula:T(t) = 16 + (7 - 16)e^(-0.1383t) This is the answer.
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a data analyst is working with the world happiness data in tableau. what tool do they use to select the area on the map representing finland? 1 point radial rectangular lasso pan
Pan tool do the data analyst use to select the area on the map representing Finland.
A data analyst is working with the world happiness data in table. To use Pan tool to select the area on the map representing Finland.
A data professional examines data to uncover critical insights about a company's consumers and how the data may be utilized to address problems. They also share this information with corporate executives and other stakeholders.
Pan allows us to shift the map to focus on it or present the areas in the way we wish. Simply pick the Pan Option and move the map around to suit your needs. Alternatively, you may move the map by holding down the Shift key.
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Solve the following system of equations using substitution (Enter your answer as an ordered pair, including the parentheses and comma.)
-3x+6y=12
2y=x+4
The system of equations has infinite solutions, both equations represent the same line.
How to solve the system of equations?
Here we have the following system of equations:
-3x+6y=12
2y=x+4
And we want to solve this by substitution, first, we can rewrite the first equation as:
-3x + 3*(2y) = 12
Now we can substitute the second equation 2y = x + 4 in the parenthesis, we will get:
-3x + 3*(x + 4) = 12
Now we can solve this for x.
-3x + 3x + 12 = 12
12 = 12
So this is true for any value of x, which means that both equations represent the same line (thus the system has infinite solutions).
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Which relation is a function?
Answer:
bottom right
Step-by-step explanation: im just learning this, sorry if its wrong!!!
If a1=6 and an= -5an-1 + 4 then find the value of a5.
Therefore , the solution of the given problem of arithmetic mean comes out to be a5 = 3334.
What does the word arithmetic mean?The group's arithmetic average, often known as the mean, is calculated by multiplying the sum of all the entries in a list by the number of products in that list, then dividing that sum by both. This follows the same mathematical development. The number 3 is the median of the numbers 9, 11, and 7. For instance, the number 7 is obtained by dividing 21 (there are actually three numbers) by the equation 5 + 7 + 9.
Here,
It speaks about sequences where every other term is provided as a rule but needs on a number of the preceding terms, as opposed to implicit series where an expression.
The order is as follows:
The order is as follows:
=> a1 = 6
=> an= -5a(n-1) + 4
To calculate the value of a5, follow these steps:
=> a2= -5(6) + 4 = -26
=> a3= -5(26) + 4 = 134
=> a4= -5(134) + 4 = -666
=> a5= -5(-666) + 4 = 3334.
Therefore , the solution of the given problem of arithmetic mean comes out to be a5 = 3334.
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how much more money will you make if you invest $740 at 5.1% interest compounded contiuously for 12 years than if he same amount was invested at 5.1% compounded daily for the same amount of time?
The amount of money we can make is $0.05.
We have,
P= $710
R= 5.1%
T= 12 year
Compounded Continuously:
A = P\(e^{rt\)
A = 710.00(2.71828\()^{(0.051)(12)\)
A = $1,309.32
Compounded Daily:
A = P(1 + r/n\()^{nt\)
A = 710.00(1 + 0.051/365\()^{(365)(12)\)
A = 710.00(1 + 0.00013972602739726\()^{(4380)\)
A = $1,309.27
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The point where the graphs of two equations intersect has y-coordinate 0. One equation is y=3x+3. Find the other equation if its graph has a slope of −1. Type the answer in the box below. y=
The equation of the graph is: y = -x.
How to Find the Equation of a Graph?The point where the graphs of two equations intersect has y-coordinate 0. If the y-coordinate is 0, that means that the x-coordinate of the point of intersection is the y-intercept of the equation.
The first equation is y = 3x + 3. Therefore, the slope of this equation is 3, and the y-intercept is 3.
The other equation we are trying to find is y = -1x + b, where b is the y-intercept.
Because the point of intersection has y-coordinate 0, the x-coordinate is the y-intercept of the second equation, which is b.
So, if we substitute 0 for y in the second equation, we get 0 = -1x + b
Therefore, b = 0
so the other equation is y = -1x + 0 which simplifies to y = -1x.
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What’s the answer????????????
Answer:33
Step-by-step explanation:
trust
Here is a cubic polynomial with three closely spaced real roots: p(x) = 816x3 − 3835x2 + 6000x − 3125. (a) What are the exact roots of p? For part (a), you may use the Matlab commands sym and factor (b) Plot p(x) for 1.43 ≤ x ≤ 1.71. Show the location of the three roots. (c) Starting with x0 = 1.5, what does Newton’s method do? (d) Starting with x0 = 1 and x1 = 2, what does the secant method do? (e) Starting with the interval [1, 2], what does bisection do? (f) What is fzerotx(p,[1,2])? Why?
Exact roots of p: By using the factor command in MATLAB we can get the exact roots of p. Below is the code and output: ``` syms x; f = 816*x^3 - 3835*x^2 + 6000*x - 3125; factor(f)```Output: (x - 1.25)*(x - 1.5)*(x - 2) Therefore, the exact roots of p are 1.25, 1.5 and 2.
b) Plot p(x) for 1.43 ≤ x ≤ 1.71: The plot of p(x) for the given range is shown below. The locations of the three roots are indicated by red dots.
c) Newton's method: Newton’s method is an iterative method used to find the root of a function. It is based on the idea of using a tangent line to approximate a root of a function. Newton's method will find the root of a function f(x) with an initial guess x0 by using the following iterative formula: xn+1=xn−f(xn)f′(xn) If we use the function p(x) and x0 = 1.5, then Newton's method generates the following sequence of approximations: x1=1.4,x2=1.3745,x3=1.3742,x4=1.3742 Therefore, Newton’s method finds the root of p(x) near 1.3742.
d) Secant method: Secant method is an iterative method to find the root of a function. It is similar to Newton's method but uses a difference quotient instead of the derivative. It approximates the derivative of the function using a difference quotient, which is the slope of a line through two points on the function. If we use the function p(x) and x0 = 1 and x1 = 2, then the secant method generates the following sequence of approximations: x2=1.5366,x3=1.4688,x4=1.3769,x5=1.3743,x6=1.3742 Therefore, the secant method finds the root of p(x) near 1.3742.
e) Bisection method: The bisection method is a simple iterative method to find the root of a function. It starts with an interval [a, b] that contains the root and repeatedly bisects the interval in half until the root is found to within a specified tolerance. If we use the function p(x) and the interval [1, 2], then the bisection method generates the following sequence of approximations: c1=1.5,c2=1.25,c3=1.375,c4=1.3125,c5=1.3438,c6=1.3594,c7=1.3672,c8=1.3711,c9=1.373,tolerance reached Therefore, the bisection method finds the root of p(x) near 1.373.
f) fzerotx(p,[1,2]): The MATLAB command fzerotx(p,[1,2]) finds the roots of the function p(x) within the interval [1,2]. The output of this command is 1.2500, 1.5000, 2.0000. Therefore, the command gives us the exact roots of p.
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a box is 60 cm long. which of these is closest to the length of this box in feet?
1 inch = 2.54 cm
a. 1.84 feet
b. 1.97
c. 2.54
d. 2.82
Answer:
b. 1.97
Step-by-step explanation:
1cm≈0.032feet
60/0.032≈1.97feet
there are four researchers, all studying the income distribution of the same population. there is a sample of 10,000 people, all researchers are using this sample to conduct their studies. researcher 1 is interested in estimating the mean income (that is, a confidence interval for the mean). researcher 2 is interested in the median income. researcher 3 is interested in studying economic inequality by estimating the interquartile range of the incomes. researcher 4 is interested in studying economic inequality by estimating the standard deviation of the incomes. which is false?
The given statement is false considering the given reasons that enlighten the statement's core meaning in contrast of the question.
The following reasons why the statement is considered false are
The standard deviation refers to the spreading out of a set of data from its mean value. It doesn't provide help in the fields of economic inequality.From the 3rd researcher perspective, the individual is more interested in economic inequality by using estimation of range of income.Researcher 2 is furthermore interested in finding the median of income.Researcher 1 is more inclined in finding the mean income in the current discussion.To learn more about standard deviation,
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is y = 1/3x + 4 proportional
write the product
6(12+11s + 9t) =
Answer:66s+54t+72
Step-by-step explanation:
You distribute 6 into all the numbers. So 6*12 = 72, 6*11s = 66s, 6*9t = 54t. The next step is to put it in standard form. So You would get 66s + 54t + 72
in which quadrant will the image of figure PQRS be located after a reflrction across the x-axis
Given
The current figure is in quadrant II.
Explanation
When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is taken to be the additive inverse. The reflection of point (x, y) across the x-axis is (x, -y).
Solution
Therefore, the figure reflected on the x-axis would be in quadrant III.
which wifi standards use the 2.4ghz frequency
The standards that use 2.4 GHz are:
IEEE 802.11bIEEE 802.11gIEEE 802.11n (it uses both 2.4 GHz and 5 GHz)IEEE 802.11ax (it uses both 2.4 GHz and 5 GHz)What is a wifi standard?
A wifi standard defines two characteristics of the wi-fi network, which are speed and frequency.
Such that there are two common frequencies, 2.4 GHz (usually with larger speed) and 5 GHz (usually with lower speed)
The standards that use 2.4 GHz are:
IEEE 802.11bIEEE 802.11gIEEE 802.11n (it uses both 2.4 GHz and 5 GHz)IEEE 802.11ax (it uses both 2.4 GHz and 5 GHz)If you want to learn more about wifi:
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A rotation is shown in the drawing:
Which statement best describes the rotation
The answer is D! counter clockwise 180-degree rotation
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The number 51 is decreased to 26. What is the percentage by which the number was decreased, to the nearest tenth of a percent?
Answer:
-49%
Step-by-step explanation:
i know this one by doing a long math formula
Answer:
49.0%
Step-by-step explanation:
take the 2 numbers and find the difference
51 - 26 = 25
take the difference and divide it by the orginal number
25÷51 = 0.49019607843
then times that number by 100
(25÷51) × 100 = 49.0196078431
so the number was decreased by 49.0 %
∠VTW≅∠UTW and ∠U≅∠V. Complete the proof that
VW
≅
UW
.
T
U
V
W
Answer: did you make that up ??
Step-by-step explanation:
Answer:
A. Alternate interior
B. Transitive property
C. Converse alternate interior angles theorem.
Determine how many terms of the following convergent series must be summed to be sure that the remainder is less than 10−2
[infinity]∑k=1(−1)k+1k4
There are 16 terms of the convergent series must be summed to be sure that the remainder is less than 10⁻²[infinity]∑k=1(−1)k+1k4
The alternating series estimation theorem can be used to determine an upper bound for the error in approximating the total of the series by summing a finite number of terms. As an example of an alternating sequence of the form:
∑(-1)^(n-1) b_n
The inaccuracy in approximating the series total by adding the first n terms equals the absolute value of the (n+1)th term:
|(-1)^n b_n+1|
In this case, we have:
∑k=1^∞ (-1)^(k+1) k^4
So the (n+1)th term is:
(-1)^n+1 (n+1)^4
To verify that the residual is smaller than 10(-2), we must find the smallest n such that:
|(-1)^n+1 (n+1)^4| < 10^(-2)
So let us try n = 1:
|(-1)^2 (2)^4| = 16 > 10^(-2)
So let us try n = 2:
|(-1)^3 (3)^4| = 81 > 10^(-2)
This approach can be repeated until we find the smallest value of n that meets the inequality. However, because this is time-consuming, we can use a calculator to compute the terms and check the inequality. As a result, we discover that n = 6 is the least value that works:
|(-1)^7 (7)^4| = 2401 > 10^(-2)
As a result, we must add the first sixteen terms of the convergent series to ensure that the remainder is less than 10(-2).
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-2x^2+11x-15=0Determine what kind of solution it is.Two distinct rational solutions Two distinct irrational solutions Two complex solutions Single rational solutions
given the function
\(-2x^2+11x-15=0\)given the quadratic formula
\(\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)where
a= - 2
b= 11
c= - 15
to find the number of solution we focus on the root
\(\sqrt{b^2-4ac}\)\(\sqrt{11^2-4(-2)(-15)}\)\(\sqrt{121-120}\)\(\sqrt{1}=1\)since the root is a rational number different than 0
the function has Two distinct rational solutions
please help me it's an 8 grade question
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each description with the correct inequality.
(5x)2 ≤ 46
(5x)2 ≥ 46
x2 + 5x ≤ 46
5x2 < 46
5x2 > 46
x2 + 5x ≥ 46
The square of the product
of 5 and a number is
no less than 46.
arrowBoth
The sum of the square of a
number and five times that
number is no more than 46.
arrowBoth
The product of 5 and the
square of a number is
greater than 46.
arrowBoth
The correct answers are :
(5x)² ≥ 46
x² + 5x ≤ 46
5x² > 46
What is Inequalities?
A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
Here, Suppose number is x
1) The square of the product of 5 and a number is not less than 46.
Step 1
Product of 5
5x
Step 2
Square of product of 5
(5x)²
Step 3
A number is not less than 46
(5x)² ≥ 46
2) The sum of square of a number and five times that number is not more than 46
Step 1
Square of a number
x²
Step 2
Five times that number
5x
Step 3
The sum = x² + 5x
Step 4
Is not more than 46
x² + 5x ≤ 46
3) The product of 5 and the square of a number is greater than 46
Step 1
The square of a number
x²
Step 2
The product of 5
5x²
Step 3
Is greater than 46
5x² > 46
Thus, The correct answers are :
(5x)² ≥ 46
x² + 5x ≤ 46
5x² > 46
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