The value of the missing number will be 3.
What is a number line?A number line in elementary mathematics is a representation of a graduated straight line that serves as an abstraction for real numbers, represented by the symbol R."
It is assumed that every point on a number line corresponds to a real number and that every real number corresponds to a point.
The equation for the missing number is given as x + (-4) = -1. the missing number will be calculated as:-
x + (-4) = -1
x -4 = -1
x = 4 - 1
x = 3
To know more about number lines follow
https://brainly.com/question/24644930
#SPJ1
Please help (Geometry)
PICTURE INCLUDED
Answer: ASA postulate
Step-by-step explanation:
There is a congruent side included between two pairs of congruent angles.
If one side of a rectangle is 8 centimeters and the another side of the rectangle is 12 centimeters, what is the area of the rectangle?
A) [tex]96cm^{2}[/tex]
B) [tex]40cm^{2}[/tex]
C) 96 cm
D) 40 cm
Answer:
Your answer is: A) [tex]96cm^{2}[/tex]
Step-by-step explanation:
The area of the rectangle having a length of 12 cm and a width of 8 cm
is 96 cm².
What are the area and perimeter of a rectangle?We know the perimeter of any 2D figure is the sum of the lengths of all the sides except the circle and the area of a rectangle is the product of its length and width.
We know the area of a rectangle is (length×width).
Given, one side of a rectangle is 8 cm and the other side of the rectangle is 12 cm.
Therefore, The area of this rectangle is,
= (12×8) cm².
= 96 cm².
So, the area of the rectangle is 96 cm².
learn more about rectangles here :
https://brainly.com/question/29123947
#SPJ1
The following exercises reveal structural properties of the set of solutions to a system of linear equations. The problems are set in R3, but the results extend to any R" (a) (i) Suppose p = (1,3,4) and q = (5,8, 12) are two points in R3. Show that the line joining p and q consists of all points of the form lq+ (1 - p as varies over all real numbers. (Hint: Think of the line as anchored p and going in directions (q-p) and -(q-p.) General Statement: The line joining two points p and q in Rn consists of all points of the form lq + (1 - \p as varies over all real numbers. (ii) Suppose p = (1,3,4) and q=(5,8, 12) are solutions to the linear system of equations: 01111 + 212.22 + 213.43 = 21 02111 + 022.2 2 + 23.13 = 2 03121 + 232.22 + 233.3 = 3 04141 +242.12 +243.13 = 24 Check that all points on the line joining p and q are also solutions to the above system of equations. General Statement: If a system of linear equations in n variables has two solutions, then all points on the line joining the two solutions are also solutions to the system. Therefore, if a system of linear equations has at least two solutions, it has infinitely many solutions. (b) Suppose p = (1, 3, 4) is a solution to the system of homogeneous equations: 01111 + 212.22 + 213.23 = 0 021.11 + 02222 +223.23 = 0 03121 + 232.22 + 233.13 = 0 04141 +242.22 +243.23 = 0 Check that any multiple of p, i.e., a vector of the form (1,3,4) where is any real number, is also a solution of the system. Is this an application of the previous question? General Statement: If a homogeneous system of equations has a non-zero solution then it has infinitely many solutions.
The general statement for the previous question is that if a homogeneous system of equations has at least one non-zero solution, then it has infinitely many solutions, which can be found by taking multiples of the non-zero solution.
(a) (i)
Let p = (1,3,4) and q = (5,8,12) be two points in R3. The line joining p and q can be written as lq + (1-\p) where l is a real number. By substituting in the coordinates of p and q, we get l(5,8,12) + (1-\1,3,4) = (l + 1-\, l+3-\, l+4-\). This is the equation for the line joining p and q, where l can be any real number.
(ii)
To check that all points on the line joining p and q are also solutions to the system of linear equations, we substitute the equation of the line into the system of equations.
01111 + 212.22 + 213.43 = 21
(l + 1-\) + 2(l+3-\) + 3(l+4-\) = 21
Simplifying, this gives: l + 6 - \ = 21. Therefore, all points on the line joining p and q are solutions to the system.
(b)
To check that any multiple of p, i.e., a vector of the form (1,3,4) where is any real number, is also a solution of the system, we substitute the equation of the multiple of p into the system.
01111 + 212.22 + 213.23 = 0
(l + 1-\) + 2(l+3-\) + 3(l+4-\) = 0
Simplifying, this gives: l + 6 - \ = 0. Therefore, all multiples of p are solutions to the system.
Learn more about equation here
https://brainly.com/question/29657992
#SPJ4
Given: ΔABC, AB=√2, M∈AC, AM=1, BM=1, and BC=2
Find: m∠ABC
The measure of the angle ∠ABC is given by 45°
What is the Pythagoras theorem?Pythagorean theorem, the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—or, in familiar algebraic notation, a² + b² = c².
Given here: ΔABC with AB=√2, AM=1,BM=1 and BC=2
Now in ΔABM we have two sides equal AM=1,BM=1
and AB=√2
Thus AM²+BM²=AB²
Thus the triangle must be a right angled triangle with AB as its hypotenuse
let ∠B=Ф then we have TanФ=1/1
⇒ Ф=45°
Hence, The measure of the angle ∠ABC is given by 45°
Learn more about trigonometric ratios here:
https://brainly.com/question/6904750
#SPJ1
In 2003, the price of a certain automobile was approximately with a depreciation of 1,750 per year. After how many years will the cars value be $11,250? A) write an equation to model the problem. Let the represent the number of years after 2003. For example, the year 2005 would be represented by t=2. B)Solve the equation to find the answer to the question above.
The number of years after 2003 that the car's value will be $11,250 is t = 7.5 years.
In 2003, the price of a certain automobile was approximately with a depreciation of 1,750 per year. After how many years will the cars value be $11,250 A) write an equation to model the problem. Let the represent the number of years after 2003.
A) The equation to model the problem is:
Price in year t = 2003 Price - (t - 1)(1,750)
B) To solve the equation for t, we can rearrange it to isolate t:
t = (2003 Price - 11,250) / 1,750
Therefore, the number of years after 2003 that the car's value will be $11,250 is t = 7.5 years. This means that the car's value will be $11,250 in the year 2010.5.
Learn more about number of years here:
https://brainly.com/question/11858931
#SPJ4
What is the rational function?
If a polynomial can be expressed as a polynomial divided by a polynomial, that function is deemed rational. x is 3, the sole zero in the denominator.
A rational function can be found in what way?The numerator and denominator degrees are frequently used to distinguish rational functions.If a polynomial can be expressed as a polynomial divided by a polynomial, that function is deemed rational. A rational function's domain is the collection of all numbers except the zeros in the denominator since polynomials are defined everywhere. f(x) Equals x in Example 1. (x - 3). x = 3, the sole zero in the denominator.Whenever the denominator polynomial is not equal to zero, a rational function is the ratio of two polynomial functions. R(x) = P(x)/Q(x) is a common representation, with P(x) and Q(x) being polynomial functions.To learn more about rational function refer to:
https://brainly.com/question/19044037
#SPJ1
A building's shadow On a morning of a day when the sun will pass directly overhead, the shadow of an 80-ft building on level ground is 60 ft long. At the moment in question, the angle & the sun makes with the ground is increasing at the rate of 0.27°/min. At what rate is the shadow decreasing? (Remember to use radi- ans. Express your answer in inches per minute, to the nearest tenth.) 80'
The rate at which shadow is decreasing On a morning of a day when the sun will pass directly overhead, the shadow of an 80-ft building on level ground is 60 ft long and is 10.4 inches per minute.
Given,
Height of the building, [tex]h[/tex] = 80 ft = 960 inches
Length of shadow, [tex]x[/tex] = 60 ft = 720 inches
The angle that the sun makes with the ground is increasing,
[tex]\frac{d\theta}{dt} = 0.27[/tex] degree [tex]= \frac{3\pi }{2000} rad/min[/tex]
[tex]tan\theta = \frac{960}{x} \\\frac{d }{dy} tan\theta = \frac{d}{dy} \frac{960}{x} \\sec^{2}\theta \frac{d\theta }{dt} = -\frac{960}{x^{2} } \\\\\frac{dx}{dt} = \frac{(60^{2})(\frac{5}{3})^{2} }{960} \\\\\\\frac{dx}{dt} = 10.4 inches /min[/tex]
Hence, the shadow is decreasing at a rate of 10.4 inches per minute.
Learn more about angles:
https://brainly.com/question/28451077
#SPJ4
I need help with this question please
5. For adults, the maximum safe water temperature in a spa is 104 F. The water temperature in Bill’s Spa is 102 F.
The temperature is increased by t F.
Write, solve, and graph an inequality to show the value of t for which the water temperature is still safe.
Graph needed*
An inequality which represents the value of t for which the water temperature is still safe is t ≤ 2 and it has been plotted in the graph attached below.
How to write, solve, and graph the required inequality?In order to write, solve, and graph an inequality that represents the value of t for which the water temperature is still safe, we would take note of the following important information;
The maximum safe water temperature in a spa is equal to 104°F.The water temperature in Bill’s Spa is equal to 102°F.The temperature was increased by t°F.The safe water temperature in a spa is at most 104°F.Let the variable t represent the safe water temperature.Now, we can write an inequality that represents the value of t for which the water temperature is still safe as follows;
102 + t ≤ 104
By subtracting 102 from both sides of the inequality, we have the following:
102 - 102 + t ≤ 104 - 102
t ≤ 2
Next, we would use an online graphing calculator to graph the above inequality as shown in the image attached below.
Read more on inequality here: brainly.com/question/19732652
#SPJ1
What is the answer to 3 divided by 6870
Answer:
2290
ignore this--> (I need 20 words to answer the question lol)
Answer:
2290
Step-by-step explanation:
2290*3 gives 6870
The sum of 3 consecutive even integers is 84. What are the 4 integers? Write an equation and solve to determine your answer.
Answer: 27 28 29
Step-by-step explanation:
A particle is moving along the x-axis. The position of the particle at time t is given by x(t) = t³ - 6t + 9t - 2, 0 ≤ t ≤ 5. Find the total distance the particle travels in 5 units of time.
The total distance traveled by the particle over 5 units of time is 140 units.
What is the total distance?
To find the total distance a particle travels over a certain time interval, we need to find the definite integral of its velocity function over that interval. The velocity function is the derivative of the position function.
In this case, the position function of the particle is x(t) = t³ - 6t + 9t - 2 and we need to find the total distance traveled by the particle over 5 units of time.
The velocity function is x'(t) = 3t² - 6 + 9 = 3t² + 3
The total distance traveled over 5 units of time is the definite integral of the velocity function evaluated between 0 and 5.
∫(3t²+3) dt from 0 to 5
= [t³ + 3t] from 0 to 5
= (5³ + 3*5) - (0 + 0) = 125 + 15 = 140
The total distance traveled by the particle over 5 units of time is 140 units.
To learn more about the total distance, visit:
https://brainly.com/question/24295081
#SPJ4
8. Solve 9*² = 3³x-2
Answer:
To solve the equation 9x² = 3³x-2, we can follow these steps:
First, we need to simplify the right side of the equation. 3³ = 27, so we can replace 3³ with 27. The equation now becomes: 9x² = 27x - 2
Next, we'll want to get all the x terms on one side of the equation and all the constants on the other side. To do this, we'll add 2 to both sides of the equation: 9x² = 27x - 2 + 2 = 27x. This gives us: 9x² = 27x
Next, we'll divide both sides of the equation by 9. This will give us x² = 3x.
Finally, we can divide both sides by 3. This will give us x = 1.
So the solution is x = 1
Halla la solución de la expresión: 32 - 14 +26 - (81/9)2
Answer:
26
Step-by-step explanation:
32 - 14 + 26 - (81/9)2
Dividing
32 - 14 + 26 - (9)2
Multiplying
32 - 14 + 26 - 18
Adding & Subtracting from left to right
18 + 26 - 18
44 - 18
26
Polynomial Arithmetic
Polynomial 1: 2x2
+ 3x − 6
Polynomial 2: x2
− 4x + 2
Question 1
What is the sum of the two polynomials?
Responses
A x2
− x − 4x 2 − x − 4
B 3x2
− x + 43 x 2 − x + 4
C 3x2
− x − 43 x 2 − x − 4
D x2
− x + 2x 2 − x + 2
Question 2
What is the product of the two polynomials?
Responses
A 4x4
− 5x3
− 14x2
+ 30x + 124 x 4 − 5 x 3 − 14 x 2 + 30x + 12
B 2x4
− 5x3
+ 7x2
+ 15x + 122 x 4 − 5 x 3 + 7 x 2 + 15x + 12
C 2x4
− 5x3
− 14x2
+ 30x − 122 x 4 − 5 x 3 − 14 x 2 + 30x − 12
D 8x4
− 5x3
+ 14x2
+ 45x − 12
Answer:
Sum of two polynomials:
[tex]3x^2 - x - 4[/tex] Choice C (read explanation carefully)
Product of the two polynomials:
[tex]2x^4-5x^3-14x^2+30x-12\\\\[/tex] Choice C (read explanation carefully)
In both cases, your answer choice copy/paste messed up the formatting. I looked at the coefficients and came up with the choices.
You should compare the actual terms with the choices I have provided to make sure they match
Step-by-step explanation:
The two polynomials are
2x² + 3x - 6
and
x² - 4x + 2
Addition
To add these two polynomials together group like terms and add their coefficients:
(2x² + 3x - 6) + (x² - 4x + 2)
= 2x² + 3x - 6 + x² - 4x + 2
= (2x² + x²) + (3x -4x) + (-6 + 2)
= 3x² - x - 4
Your answer choices have lost formatting during copy paste. You will have to compare and choose the right one. I think it is C because it has a 3x² term and the last term is - 4
Multiplication
[tex]\left(2x^2\:+\:3x\:-\:6\right)\cdot \left(x^2-4x\:+\:2\right)\\\\\\[/tex]
Distribute the parentheses - multiply each term in the second polynomial by each term in the first polynomial and simplify
[tex]\left(2x^2\:+\:3x\:-\:6\right)\cdot \left(x^2-4x\:+\:2\right)\\\\= 2x^2x^2+2x^2\left(-4x\right)+2x^2\cdot \:2+3xx^2+3x\left(-4x\right)+3x\cdot \:2-6x^2-6\left(-4x\right)-6\cdot \:2\\\\= 2x^4-8x^3+4x^2+3x^3-12x^2+6x-6x^2+24x-12\\\\\textrm{Add similar terms}\\=2x^4 +(-8x^3+3x^3)+ (4x^2-12x^2-6x^2) + (6x+24x) -12\\\\[/tex]
[tex]=2x^4-5x^3-14x^2+30x-12\\\\[/tex] (Answer)
Again your answer choices have lost formatting but my best guess from looking at the coefficients is that it is choice C
suppose the length of a certain rectangle is 8 meters more than twice its width and the perimeter is 46 meters. Find it's area
The area of the rectangle is A = 172.5 m^2
The area of a rectangle can be found by using the formula A = lw, where l is the length and w is the width. In this case, we are given that the length is 8 meters more than twice the width, so we can let l = 2w + 8. We are also given the perimeter, which is the sum of the length and width multiplied by two, or 2l + 2w. We can set this equal to 46 and solve for w:
2(2w + 8) + 2w = 46
4w + 16 = 46
4w = 30
w = 7.5
Therefore, the width of the rectangle is 7.5 meters and the length is 2(7.5) + 8 = 23 meters. The area of the rectangle can then be found by substituting these values into the area formula:
A = lw
A = (23)(7.5)
A = 172.5 m^2
Learn more about area of a rectangle here:
https://brainly.com/question/20693059
#SPJ4
using the properties of combinations of continuous functions, determine the interval(s) over which the function f (x )equals fraction numerator x squared minus 5 x minus 6 over denominator x minus 3 end fraction is continuous.
The interval over which the function is continuous equation is (-∞, 3) U (3, +∞).
The function f(x) = (x2 - 5x - 6)/(x - 3) is continuous over all real numbers except x = 3, since the denominator is equal to 0 at x = 3.
We can use the properties of combinations of continuous functions to determine the interval(s) over which the function f(x) is continuous equation.
First, we need to consider the function f(x) in two parts. The first part is f(x) when x ≠ 3, and the second part is when x = 3.
For the first part, when x ≠ 3, the function f(x) is continuous over all real numbers, since both the numerator and denominator are continuous over all real numbers.
For the second part, when x = 3, the function f(x) is discontinuous, since the denominator is equal to 0.
Therefore, the interval over which the function f(x) is continuous is (-∞, 3) U (3, +∞).
Learn more about equation here
https://brainly.com/question/11897796
#SPJ4
Step 2 The admission price increased by 50%. Complete the bar diagram that represents 150% of the price 5 years ago. price 5 years ago = $3 So, the current admission price is current price = + or --- increase 150%
The bar diagram representing 150% of the price 5 years ago would be a bar with a height of $4.50.
What is the percentage?
Percentage is a way to express a number as a fraction of 100. It is often used to describe the relationship between two quantities, or to express a rate or change in a quantity over time. The symbol for percent is "%".
For example, if a pizza is marked up by 20%, it means the price has increased by 20/100 or 1/5 of the original price. If a student scores 80% on a test, it means they got 80 out of 100 questions correct. If a stock's value increases by 10%, it means the value has gone up by 10/100 or 1/10 of the original value.
The current admission price is $3 + $3 * 50% = $3 + $1.50 = $4.50.
150% of the price 5 years ago is $3 * 150% = $3 * 1.5 = $4.50.
So, the bar diagram representing 150% of the price 5 years ago would be a bar with a height of $4.50.
To learn more about the percentage, visit:
https://brainly.com/question/24877689
#SPJ1
have you seen or read about an example where data were presented on an issue, but the sample was not representative of the population from which it was drawn? if you can't recall a specific example, locate one using an internet search.
A specific example of a non-representative sample can be seen in the 2016 US presidential election.
The national polls indicated that Hilary Clinton had a lead in the polls, but Donald Trump went on to win the election. This is because the sample used in the polls was not representative of the population. The sample was disproportionately composed of college-educated individuals, when the actual electorate was more evenly balanced between college-educated and non-college-educated individuals. This caused the samples to be biased and not representative of the population.
For example, if we assume that the population is composed of 50% college-educated individuals and 50% non-college-educated individuals, then the sample should also be composed of 50% college-educated individuals and 50% non-college-educated individuals to be representative. If the sample is not composed of 50% college-educated individuals and 50% non-college-educated individuals, then the sample is not representative of the population.
This can be calculated by using the formula: (Number of College Educated Individuals in Sample/Total Sample Size) X 100.
For example, if the sample size is 100 and there are 75 college-educated individuals in the sample, then the sample is not representative of the population because (75/100) X 100 = 75%, which is not equal to the 50% of the population that is college-educated.
Learn more about sample here:
https://brainly.com/question/11045407
#SPJ4
the inverse of resistance is 1.0 / resistance. the following program computes the inverse of a measurement of resistance and then outputs the inversed value. the code contains one or more errors. find and fix the error(s). ex: if the input is 0.500, then the output should be: the inverse of resistance
The incorrect code contained two errors. The first was that the variable 'resistance' was initialized with a string value from the prompt, and the second was that the inverse value was not rounded off to two decimal places.
// incorrect code
//
// let resistance = prompt("Enter the resistance: ");
// inverse = 1.0 / resistance;
// console.log("The inverse of resistance is " + inverse);
// correct code
let resistance = parseFloat(prompt("Enter the resistance: "));
let inverse = 1.0 / resistance;
console.log("The inverse of resistance is " + inverse.toFixed(2));
1. In the incorrect code we have a variable 'resistance' that is initialized with a string value from the prompt. To fix this we have used the parseFloat function to convert this string to a float value.
2. In the incorrect code the inverse value is not rounded off to 2 decimal places. To do this we have used the toFixed(2) method to round off the inverse value to 2 decimal places.
The incorrect code contained two errors. The first was that the variable 'resistance' was initialized with a string value from the prompt, and the second was that the inverse value was not rounded off to two decimal places. To fix these errors, the parseFloat function was used to convert the string value of 'resistance' to a float value, and the toFixed(2) method was used to round off the inverse value to two decimal places.
Learn more about error here
https://brainly.com/question/13370015
#SPJ4
Starting at home, Malavika walks 3 blocks west, then 6 blocks east, and finally 11 blocks west.
a) How many blocks is she from home?
b) How many blocks has she traveled?
Answer:
she is 0 blocks away from home because you said she started at home
Answer:
a) Malavika is 8 blocks west from home
b) Traveled 20 blocks total
Step-by-step explanation:
a) According to a compass: 3 west (left), then 6 east (right) and that puts you at 3 east (right). Then back 11 west (left) puts you at 8 west (left)
b) Add up all blocks traveled: 3 + 6 + 11 = 20
One number is 7 more than another number. If the smaller number is doubled and added to 3 times the larger number, the sum is 86. Find the two numbers.
Smaller number =
Larger number=
(Type the integers or decimals.)
Smaller number = 7
Larger number = 14
How to solve algebraic equation?An algebraic equation can be solved in a variety of ways.
The method you use to solve an equation depends on the type of equation and the information you are given.
Some of the most common methods to solve algebraic equations include using factoring, using the quadratic formula, completing the square, graphing, and using the substitution method.
This question uses the algebraic equation solving technique.
Step 1: Create an equation that relates the two numbers.
Let x = the smaller number
Let y = the larger number
2x + 3y = 86
Step 2: Substitute the given information into the equation.
We know that y = x + 7, so we can substitute that into the equation.
2x + 3(x + 7) = 86
Step 3: Solve the equation.
2x + 3x + 21 = 86
5x + 21 = 86
5x = 65
x = 13
Step 4: Substitute the value for x into the expression for y.
y = x + 7
y = 13 + 7
y = 20
Therefore, the two numbers are 7 and 14.
To learn more about algebraic equation, visit
brainly.com/question/953809
#SPJ1
Without evaluating each expression, determine which value is the greatest. Explain how you know.
1.7 % -9
2. (-7)+(-93)
3. (-72).9 3/
4. (-75) ÷ (-9)
The value of 7[tex]\frac{5}{6}[/tex] - 9[tex]\frac{3}{4}[/tex] is the greatest. The solution is obtained by using the arithmetic operations.
What are arithmetic operations?
In mathematics, mainly there are four basic operations upon which all the calculations are done. The operations are:
1. Addition(‘+’) wherein the sum of the numbers is obtained.
2. Subtraction(‘-’) wherein the difference of the numbers is obtained.
3. Multiplication(‘×’) wherein the product of the numbers is obtained.
4. Division(‘÷’) wherein the quotient of the numbers is obtained.
We are given first expression as 7[tex]\frac{5}{6}[/tex] - 9[tex]\frac{3}{4}[/tex]
The answer for this expression can be a positive or a negative number depending on the fact which of the terms is greater.
The second expression is (-7[tex]\frac{5}{6}[/tex] ) + (- 9[tex]\frac{3}{4}[/tex])
The answer for this expression will be a negative number because addition of two negative numbers is always negative.
The third expression is (-7[tex]\frac{5}{6}[/tex] ) . 9[tex]\frac{3}{4}[/tex]
The answer for this expression will be a negative number because multiplication of one negative number and one positive number is always negative.
The fourth expression is (-7[tex]\frac{5}{6}[/tex] ) ÷ (- 9[tex]\frac{3}{4}[/tex])
The answer for this expression will be a positive number because division of two negative numbers is always positive. But, dividing two numbers will give us value close to 1 because the numbers 7 and 9 are very close to each other.
Hence, the value of 7[tex]\frac{5}{6}[/tex] - 9[tex]\frac{3}{4}[/tex] is the greatest.
Learn more about arithmetic operations from the given link
https://brainly.com/question/30283549
#SPJ1
For each of the indefinite integrals below, choose which of the following substitutions would be most helpful in evaluating the integral. Enter the appropriate letter (A,B, or C) in each blank. DO NOT EVALUATE THE INTEGRALS.A. x = 4tanθB. x = 4 sin θC. x = 4 sec θ1. ∫√(x^²-16) dx2. ∫(x^² dx)/√(16-x^2) dx3. ∫ dx / (16+x^2)^34. ∫ (x^2 – 16)^(5/2) dx5. ∫ dx / (16 – x^2)^(3/2)
For equation 1, substitution x=4tanθ is the most helpful. For 2, substitution x=4sinθ is the most helpful. For 3, substitution x=4secθ is the most helpful. For 4, substitution x=4sinθ is the most helpful. For 5, substitution x=4tanθ is the most helpful.
Substitutions are often used to simplify indefinite integrals. For example, in the first integral ∫√(x^2-16) dx, substitution x=4tanθ is the most helpful. This is because it will allow us to simplify the expression under the radical. After substituting, we have ∫√(16tan^2θ-16) dθ. The 16tan^2θ can be factored to give 16(tan^2θ-1), which is equal to 16sec^2θ-16. This simplifies the integral, making it easier to integrate. In a similar way, substitution can also be used to simplify the other integrals. For example, for the fourth integral ∫(x^2 – 16)^(5/2) dx, substitution x=4sinθ is the most helpful. After substituting, we have ∫(16sin^2θ-16)^(5/2) dθ. This simplifies the integral, making it easier to integrate. In general, the substitutions chosen for each integral should be the ones that simplify the expression the most, allowing for easier integration.
1. A. x = 4tanθ
2. B. x = 4sinθ
3. C. x = 4secθ
4. B. x = 4sinθ
5. A. x = 4tanθ
Learn more about equation here
https://brainly.com/question/29657992
#SPJ4
In two or more complete sentences, prove how to find the third term of the expansion of
(x+2y)^4
Answer:
-2
Step-by-step explanation:
y = −2− x 2 y = - 2 - x 2
Answer:
[tex]24x^{2}y^2[/tex]
Step-by-step explanation:
[tex]\boxed{\begin{minipage}{5cm} \underline{Binomial Theorem}\\\\$\displaystyle (a+b)^n=\sum^{n}_{k=0}\binom{n}{k} a^{n-k}b^{k}$\\\\\\where \displaystyle \binom{n}{k} = \frac{n!}{k!(n-k)!}\\\end{minipage}}[/tex]
We can use the Binomial Theorem to find any term of a binomial expansion.
The first term is when k = 0, so the third term is when k = 2.
Compare the given expression (x + 2y)⁴ with the formula to find the values of a, b and n.
Therefore:
a = xb = 2yn = 4k = 2Substitute the values into the formula to find the third term:
[tex]\implies \displaystyle\binom{4}{2}x^{4-2}(2y)^2[/tex]
[tex]\implies \dfrac{4!}{2!(4-2)!}x^{2}2^2y^2[/tex]
[tex]\implies \dfrac{4 \times 3\times \diagup\!\!\!\!2\times \diagup\!\!\!\!1}{2\times 1\times \diagup\!\!\!\!2\times \diagup\!\!\!\!1}\;x^{2}4y^2[/tex]
[tex]\implies \dfrac{12}{2}\:x^24y^2[/tex]
[tex]\implies 6x^{2}4y^2[/tex]
[tex]\implies 24x^{2}y^2[/tex]
If a and b are nonzero digits, then the number of digits (not necessarily different) in the sum of the three whole numbers is
9 8 7 6
A 3 2
B 1 (A). 4 (B). 5 (C). 6
(D). 9
(E). Depends on the values of A and B
If a and b are nonzero digits, the number of digits (which may or may not be different) in the sum of the three whole numbers is determined by the values of A and B that is option E.
What is digit?In mathematics, digits are single numbers that are used to represent values. In math, the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 are used in various combinations and repetitions to represent all of the values. A digit is a symbol that can represent any of the ten numbers from 0 to 9. If a and b are nonzero digits, the number of digits (which may or may not be different) in the sum of the three whole numbers is determined by the values of A and B. A digit can be any of the following symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. A number is a measurement of something. It can be written with one, two, three, or more digits.
Here,
If a and b are nonzero digits, the number of digits (which does not have to be the same) in the sum of the three whole numbers is determined by the values of A and B that is option E.
To know more about digit,
https://brainly.com/question/16806027
#SPJ4
use letters and number if needed to create a word problem and solve it:
look at image to create one
ex) Cayley earns $5 an hour by delivering newspapers. She delivers newspapers 3 days each week, for 4 hours at a time. After delivering newspapers for 8 weeks, how much money will Cayley earn?
Answer:
Cayley earned per day: 4 x 5 = 20
: Her earning per week- 3 x 20 = 60
: Her earning for 8 weeks- 8 x 60 = 480
Cayley earns $480 per week.
1.The angles of a quadrilateral are m,3m, 2m and 3m in that order. a Write an equation in m. Find m. C Find the angles of the quadrilateral. d Make a sketch of the quadrilateral. e What kind of quadrilateral is it? 2.Calculate the size of each angle of a e regular octagon.3. In Figure 6.25: Find the value of x. a b Find the unknown angles in the hexagon. 117⁰ 1319 2x 3x 142⁰
Answer:
=> A/Q,
m + 3m + 2m+ 3m 360° =
9m = 360°
m = 360/9
m = 40°
Angle A = m = 40°
Angle B = 3m = 120°
Angle C 2m = 80° =
Angle D = 3m = 120°
What is 4/10 X 3/4 in a fraction form
Answer:0.3
Step-by-step explanation:
answer my question next please its about zara sells apples one
Answer:3/10
Step-by-step explanation: 4x3 is 12 and 4x10 is 40, so 12/40, the GCF of these numbers are 4 so 12/4=3 and 40/4= 10
So 3/10
Dirk purchased a bike horn. He paid $5.33 and received $4.18 in change. How much did the bike horn cost?
$1.15
Step-by-step explanation:Let's call the cost of the bike horn "x".
Dirk paid $5.33 and received $4.18 in change, so he must have paid x + $4.18 = $5.33.
Solving for x, we get x = $5.33 - $4.18 = $1.15.
Therefore, the bike horn cost $1.15.