What are the solutions to the equation cosine of the quantity x plus 3 times pi over 2 end quantity equals radical 2 over 2 on the interval [0, 2π]?

pi over 4 comma 3 times pi over 4 close bracket
5 times pi over 4 comma 7 times pi over 4 close bracket
negative pi over 4 comma 3 times pi over 4 close bracket
3 times pi over 4 comma 5 times pi over 4 close bracket

Answers

Answer 1

The solution to the equation cos(x + 2π/3) = √2/2 over the interval

(0, 2π) is [7π/12, 3π/4]

What are periodic functions?

A periodic function has a range that is determined for a fixed interval and a domain that includes all real number values.

Any function that has a positive real integer p such that f (x + p) = f (x), with all x being real values, is said to be periodic.

The given function is cos(x + 2π/3) = √2/2 over the interval (0, 2π).

(x + 2π/3) = cos⁻1(√2/2).

x + 2π/3 = π/4  or 21π/12   (As cos is +ve on I and IV)

Now,

x + 2π/3 = π/4.

x = π/4 - 2π/3.

x = (3π - 8π)/12.

x = - 5π/12.

x = π - 5π/12.

x = (12π - 5π)/12.

x = 7π/12.

And,

x + 2π/3 = 21π/12.

x = 21π/12 - 2π/2.

x = (21π - 12π)/12.

x = 9π/12.

x = 3π/4.

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Related Questions

Explain the answer 2425÷ 45. Make sure that you are very detailed in YOUR explanation.

Answers

2425÷ 45 can be solved by using long division. The first step is to divide the first number (2425) by the divisor (45). The result, 54, is the first number in the answer.

What does math's long division mean?

The mathematical operation of breaking up huge numbers into several smaller groups or sections is known as long division. The number we divide by is known as the divisor, and the number we divide into smaller groups is known as the dividend. A problem can be handled by breaking it down into smaller, more manageable parts.

Next, subtract 54 x 45 (2430) from 2425, which leaves a remainder of -5.

To continue long division, we bring down the next number in the dividend (2425), which is a 5. Next, divide the remainder (-5) by the divisor (45). The result, -1/9, is the second number in the answer.

Finally, subtract -1/9 x 45 (-5) from the remainder (-5), which leaves a remainder of 0. The answer is 54 1/9.

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3. Mr. Sanchez’s class sold fruit pies for $1.45 each and Mr. Kelly’s class sold bottles of fruit juice for $1.25 each. Together, the classes sold 53 items and earned $70.85 for their school.
(a) Write and solve a system of equations that model the problem. Show all your work.
(b) Which class earned more money?
(c) How much more money did that class earn?

Answers

Let x be the number of fruit pies sold by Mr. Sanchez's class, and y be the number of bottles of fruit juice sold by Mr. Kelly's class.

(a) We can set up a system of equations to model the problem:

x + y = 53   (total number of items sold)

1.45x + 1.25y = 70.85   (total amount earned)

To solve this system using substitution, we can rearrange the first equation to solve for one variable in terms of the other:

x + y = 53

x = 53 - y

Then substitute x = 53 - y into the second equation:

1.45x + 1.25y = 70.85

1.45(53 - y) + 1.25y = 70.85

76.85 - 1.45y + 1.25y = 70.85

0.2y = 6

y = 30

Substituting y = 30 into the equation x + y = 53 gives:

x + y = 53

x + 30 = 53

x = 23

So Mr. Sanchez's class sold 23 fruit pies and Mr. Kelly's class sold 30 bottles of fruit juice.

(b) To find out which class earned more money, we can calculate the total amount earned by each class:

Mr. Sanchez's class: 1.45 x 23 = $33.35

Mr. Kelly's class: 1.25 x 30 = $37.50

Mr. Kelly's class earned more money.

(c) The amount by which Mr. Kelly's class earned more than Mr. Sanchez's class is:

$37.50 - $33.35 = $4.15

How much of the circle is shaded? Write your answer as a fraction in simplest form.
1
4
1
6

Answers

I don’t see the circle

in isosceles triangle ABC AC is equal to BC is equal to 8 centimetres the vertical height CD of the triangle is 5 cm calculate the length of the base ab ​

Answers

The length of the base, AB, can be found to be 12. 49 cm

How to find the base length ?

The base length can be found using the Pythagoras Rule which is:

c ² = a ² + b ²

a = CD which is the height

c = AC

So we can find half od base length when we divide the shape into a right angled triangle :

8 ² = 5 ² + b²

b ² = 64 - 25

b = √ 39

b = 6. 24 cm

Double of this would be:

= 12. 49 cm

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A random sample of 500 adults living in a large county was selected and 304 adults from the sample indicated that the unemployment rate was of great concern. What is the standard error of the sample proportion pˆ
?

Answers

The standard error of the sample proportion p is approximately 0.281

The standard error of the sample proportion p can be calculated by taking the square root of the sample proportion's variance, which is given by-

p(1-p)/n, where p is the sample size,

The random sample(n) is equal to 500

The adults who indicate the unemployment is 304

Now the sample proportion

p=304/n

p=304/500

p= 0.608

Now the standard error is

SE= √p(1-p)/n

Now put the value here

SE=√0.608(1-0.608)/500

SE=0.021833

Therefore, the standard error of the sample proportion is 0.0218

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Find the volume of the solid generated by rotating the region bounded by y = x^2, y = 0, and x = 1, about the y-axis.

Answers

Step-by-step explanation:

To find the volume of this solid, we will use the method of cylindrical shells. We will integrate the cross-sectional area of a cylinder, given by πr^2, over the height of the solid. The height of the solid is given by the difference between the upper and lower bounds of the region, which are y = x^2 and y = 0, respectively. The radius of each cylindrical shell is given by the distance of the cross-sectional circle from the y-axis, which is x.

So, the volume of the solid is given by the integral:

V = ∫[0, 1] π * x^2 dx

Using the antiderivative of π * x^2, which is π * x^3 / 3, we can find the definite integral:

V = (π * x^3)/3 from 0 to 1

Evaluating the definite integral and simplifying, we get:

V = π/3 units^3

So, the volume of the solid is π/3 units^3.

Answer:

Step-by-step explanation:

Find the volume of the solid generated by rotating the region bounded by y = x^2, y = 0, and x = 1, about the y-axis.

Which graph is the piece-wise function defined by 9x7+9

Answers

The piece-wise function defined by 9x7+9 is added as an attachment

How to determine the graph of the function

From the question, we have the following parameters that can be used in our computation:

9x7+9


Express properly

So, we have

y = 9x^7+9

The above expression is a polynomial expression

Next, we represent on a graph (see attachment)

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Can you guys please help me on those three ASAP!!! for 100 points

Answers

Answer:

1. 12 yards.

2. 15 meters.

3. 217 centimeters.

Step-by-step explanation:

[tex]\frac{1}{2}[/tex] · [tex]b[/tex] · [tex]h[/tex] is the formula. (for the area of a triangle.)

Plug in the numbers and solve.

Hope it helped!

HELPS ASAP, 100 POINTS, WILL GIVE BRAINLIEST,

Carrie flipped a fair coin twice 240 times and recorded the results in the table.


Outcome Heads, Heads Heads, Tails Tails, Heads Tails, Tails
Frequency 60 73 63 44

If the coin is flipped 240 times, determine P(tails, tails).
18.3%
25%
44.8%
50.0%

Answers

Answer:

Below

Step-by-step explanation:

She got   T-T    44 times out of 240 tries  ( if I read your post correctly)

44/240 = .183    which is 18.3 %

Answer:

18.3%

Step-by-step explanation:

got it right evidence below

Carrie flipped a fair coin twice 240 times and recorded the results in the table.

Outcome Heads, Heads Heads, Tails Tails, Heads Tails, Tails

Frequency 60 73 63 44

If the coin is flipped 240 times, determine P(tails, tails).

18.3%

25%

44.8%

50.0%

Points earned on this question: 2

If 20% of x = y, what is the value of y% of 20 in terms of x?

Answers

Answer:

Step-by-step explanation:

adam 7.5 to 634

Convert 9.335 • 10^5 to standard form.

Answers

The solution of the given problem of expression comes out to be the standard form of 9.335 × 10⁵ is 933,500.

Expression: What is it?

Addition, multiplication, and division in mathematics are required. When united, they produce the following: A mathematical function, some data, and an equation A declaration of fact contains values, parameters, and mathematical operations like additions, subtractions, multiplications, and divisions. It is possible to contrast and evaluate various phrases and words.

Here,

9.335 • 10⁵  is already in standard form, also known as scientific notation, which is a way of representing numbers as a coefficient multiplied by a power of 10.

To clarify, 10⁵  means "10 raised to the power of 5", which is equivalent to multiplying 10 by itself 5 times:

10^5 = 10 x 10 x 10 x 10 x 10 = 100,000

So 9.335 • 10⁵ can be written as:

933,500

Therefore, the standard form of 9.335 • 10^5 is 933,500.

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if you believe bit plane slicing is lossy, can 1st-order extrapolation or 2d bilinear interpolation recover the original image?

Answers

If you believe that bit plane slicing is lossy, then 1st-order extrapolation or 2D bilinear interpolation cannot fully recover the original image.

What is extrapolation and interpolation?

Extrapolation is an estimation based on extending a known sequence of data beyond what is absolutely known.

Interpolation is the estimation of a value in a sequence of values between two known values.

Bit plane slicing is a lossy compression technique, which means that some information from the original image is lost during the compression process. The purpose of bit plane slicing is to reduce the size of an image by removing less significant bits from each pixel. As a result, the quality of the image is reduced.

1st-order extrapolation and 2D bilinear interpolation are techniques used to estimate or predict missing or unknown values from a given set of data. These techniques can be used to enhance the quality of an image, but they cannot recover the original image in cases where information has been lost through compression or degradation. In other words, they can only improve the quality of the image to a certain extent, but they cannot restore it to its original state.

So, if you believe that bit plane slicing is lossy, then 1st-order extrapolation or 2D bilinear interpolation cannot fully recover the original image, although they may help to improve its quality to some extent.

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Anya bought some tomatoes with a mass of 1.2 kilograms.
How much heavier are Anya's tomatoes than Nobu's tomato?

Answers

The information provided doesn't mention Nobu's tomato, so it's not possible to determine how much heavier Anya's tomatoes are than Nobu's tomato without more information.

What is the slope of the line below?

Answers

The slope is -2/5

You have a point at (0,3) and (5,1).  If you create a slope triangle, it'll go down 2 and right 5.

how many different subsets of {1,2,3,4,5,6,7,8,9,10,11,12} contain at least one element in common with each of the sets {2,4,6,8,10,12}, {3,6,9,12}, and {2,3,5,7,11}? (source: mathcounts)

Answers

There are a total of 816 different subsets of {1,2,3,4,5,6,7,8,9,10,11,12} contain at least one element in common with each of the given sets

There are 12 elements in the original set, and each of the three smaller sets has different elements. To find the number of subsets that contain at least one element in common with each of the three sets, we need to count the number of subsets that contain at least one element from each set. To do this, we can consider each set separately and multiply the number of subsets that contain at least one element from each set.

The first set has 6 elements, the second set has 4 elements, and the third set has 5 elements. The number of subsets of the first set that contain at least one element is [tex]2^6-1[/tex]=63, the number of subsets of the second set that contain at least one element is [tex]2^4-1[/tex] =15, and the number of subsets of the third set that contain at least one element is [tex]2^5-1[/tex]=31. The number of subsets of the original set that contain at least one element from each of the three sets is 63 * 15 * 31 = 816.

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what is the position of the median where marks:18,27,32,40,46 and no. of students:2,3,10,9,5​

Answers

Answer: 9, 9, 9, 10, 2

Step-by-step explanation:18/9 = 2 students

                                            27/9 = 3 students

                                            32/9 = 4 students

                                            40/10 = 4 students

                                            46/2 = 23 students

given the recursive formula for a geometric sequence find the explicit formula
a_(n)=a_(n-1)*3

Answers

The explicit rule for the sequence is f(n) = a(3)^n-1

How to determine the explicit rule for the sequence?

From the question, we have the following parameters that can be used in our computation:

a_(n)=a_(n-1)*3

The above definitions imply that we simply multiply the current from by 3 to get the next term

This means that the function is a geometric function with the following parameters

Common ratio, r = 3

So, the function is

f(n) = a(3)^n-1

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The length is 4cm and the width is 6cm and has a semi circle what is the area

Answers

Answer:

The area of a rectangle with length 4 cm and width 6 cm is 24 square cm. To find the area of a semi-circle, we use the formula for the area of a circle and divide by 2. The formula for the area of a circle is πr^2, where r is the radius. The radius of the semi-circle is half the width of the rectangle, so r = 6/2 = 3 cm. Thus, the area of the semi-circle is π(3^2) = 9π square cm.

The total area of the figure would be the sum of the area of the rectangle and the semi-circle, so the answer would be 24 + 9π square cm.

fill in using the quadratic formula

Answers

Step-by-step explanation:

[tex]x = \frac{ - (b) \frac{ + }{} \sqrt{ {(b)}^{2} - 4(a)(c) } }{2(a)} [/tex]

Write the equation of the line through (2,15) and (-4,9)

Answers

The line through (2,15) and (-4,9) has the equation y = x - 13 whereas the slope or m is 1.

what is equation ?

The statistic is said to be in this simplest form when subdivided into its smallest analogous fraction. How to do to find the most basic form. Look for common factors in the denominators and numerators. Evaluate a fractional integer to verify if this one passes as a prime number. A assertion having two equal sides and an equal sign in the middle is called an equation in mathematics. The normal form of a linear function is an x + b = 0. The general form of a linear equation with two variables is an x + b y + c = 0. (or something similar). Inequalities can be categorized as identities or conditional equations. An identity holds true no matter what value is given to the variables.

given

point slope form = (y - y1 ) = m( x - x1 )

points are = (2,15) and (-4,9)

m = y2 - y1 / x2 - x1

= -6 / -6

m = 1

equation = y - 15 = 1 ( x - 2 )

y = x - 2 + 15

The line through (2,15) and (-4,9) has the equation y = x - 13 whereas the slope or m is 1.

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What two numbers has a sum of 9 and a product of 30

Answers

explanation: In order to find what two numbers have a Product and Sum write down what you know initially.

Let's assume the values we need to find are x, y whose product and sum are known.

Write the given data in the form of equations.

By using basic substitution, you will get an expression from which you can find the values easily.

If you aren't sure whether the results arrived are accurate or not cross-check the results obtained in the equations framed with input data.

Sum of two numbers = 24

Let's consider the numbers we need to find as x and y

To solve the problem x.y = 44

x+y = 24

y=24-x

Replace the value of y in the equation x.y=44. It's not necessarily y if you want you can interchange with the value of x too as x and y are interchangeable. . (24-x)=44

On solving the equation we get two numbers as 2 and 22

That's it the two numbers whose product is 44 and the sum is 24 are 2, 22. so you should be able to do the same with your question hope that helps!

A long distance space probe takes off from earth heading towards Proxima centauri and travels 1.7 light years what are the additional distances the pro can travel for getting to the star

Answers

The distance of the probe is given by the equation A = 2.546 light years

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

The distance traveled by the space probe = 1.7 light years

Now , the value of 1 light year = 9.461 x 10¹³

So , the distance traveled by the space probe = 1.7 x value of 1 light year

On simplifying the equation , we get

The distance traveled by the space probe D = 1.7 x 9.461 x 10¹³

The distance traveled by the space probe D = 16.0837 x 10¹³ km

The distance traveled by the space probe D = 1.60837 x 10¹⁴ km

The distance to Proxima Centauri = 4.246 light years

So , the remaining distance is A = distance to Proxima Centauri - distance traveled by the space probe

On simplifying the equation , we get

The remaining distance is A = 2.546 light years

Hence , the equation is A = 2.546 light years

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Lexi and Ann go shopping. Ann wonders how much tax she will have to pay on her purchase of $76. Lexi says, "They just charged me $14.50 in taxes when I bought these outfits for $200." How much will Ann pay in taxes?

Answers

well, first off, let's see how much was it in tax for the $200 purchase, since we know it was a whooping $14.50.

now, if 200(origin amount) is the 100%, what's 14.50 off of it in percentage?

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 200 & 100\\ 14.50& x \end{array} \implies \cfrac{200}{14.50}~~=~~\cfrac{100}{x}\implies 200x=1450 \\\\\\ x=\cfrac{1450}{200}\implies x=\stackrel{\%}{7.25}[/tex]

now, let's check how much will that be for $76

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{7.50\% of 76}}{\left( \cfrac{7.50}{100} \right)76}\implies 5.7[/tex]

In 14 days, Lin's sister will be paid $430 and will deposit it into her checking account. If there are no other transactions besides this deposit and the daily fee, will Lin continue to be charged $5.95 each day after this deposit is made? Explain or show your reasoning.

Answers

The equation, fine is $5*86 = 430so 430-430 = 0, Lin's account balance is much above zero (0), so she won't be charged $5.95 each day.

What is equation?

A mathematical equation is a formula that joins two statements and uses the equal symbol (=) to indicate equality. A mathematical statement that establishes the equality of two mathematical expressions is known as an equation in algebra. For instance, in the equation 3x + 5 = 14, the equal sign places the variables 3x + 5 and 14 apart. The relationship between the two sentences on either side of a letter is described by a mathematical formula. Often, there is only one variable, which also serves as the symbol. for instance, 2x – 4 = 2.

Lin's sister will be paid $430

here are no other transactions besides this deposit and the daily fee

since fine is $5*86 = 430

so 430-430 = 0

hence,

Lin's account balance is much above zero (0), so she won't be charged $5.95 each day. However, if her account balance were to drop below zero, she would be charged for any further daily deposits made.

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need help with this question

Answers

Answer:

D

Step-by-step explanation:

A and B would move the functional graph unchanged 6 units up and down.

but that is clearly not what happened.

so, A and B are out.

h(x) is instead f(x) shifted 6 units to the left.

that means the functional value h(x) is the same as f(x') just 6 units "earlier". that means x = x' - 6 or x' = x + 6.

therefore,

h(x) = f(x + 6) = sqrt(x + 6)

if a bakery produces 1,215 cupcakes during a 9 hour shift, what is the production rate of cupcakes per hour?
can u explain it in ratio

Answers

They make 135 cupcakes per hour.

terms and coefficients in -x-x²

Answers

Answer:

Step-by-step explanation:

We are given with expression -x-x^2

In this expression terms are -x and -x^2

and the coefficient of x is -1 and x^2 is -1

WILL GIVE BRAINIEST HELP ASAP DUE IN 20 MIN

Answers

First box is m, second is 11, final answer is 2/7x +22/7

Find the sum: 7/10 + 11/100
A: 18/10
B: 81/ 100
C: 70/100
D: 18/110

Answers

Answer:

81/100

Step-by-step explanation:

First we need to find a common multiple of 10 and 100.  It's going to be 100, so we chance 7/10 to 70/100.

Now that the denominator matches for both of them, now we add.

70/100 + 11/100 = 81/100

81/100

Explanation:


STEP
1
:

11
Simplify
100


Equation at the end of step
1
:

7 11
—— + ———
10 100
STEP
2
:

7
Simplify ——
10
Equation at the end of step
2
:

7 11
—— + ———
10 100

Equals 81/100

3,7,2,4,7,5,7,1,8,8
What is the mean

Answers

a) The mode of the list is 7

b) The median of the list is 7.

c) The mean is 5.4

d) The range is 7

What is the Mean, Mode and Median?

Mean: The mean is the average of a set of numbers, calculated by adding up all the numbers and dividing by the total number of numbers in the set.

Mode: The mode is the most frequently occurring number in a set of numbers.

Median: The median is the middle value in a set of numbers when the set is sorted in ascending or descending order.

a) Mode: The mode of the list is 7, as it is the number that occurs most frequently (3 times).

b) Median: To find the median, the list must first be sorted in ascending order:

1, 2, 3, 4, 5, 7, 7, 7, 8, 8

The median of the list is 7.

c) Mean: The mean is found by adding up all the numbers in the list and dividing by the total number of items:

(3 + 7 + 2 + 4 + 7 + 5 + 7 + 1 + 8 + 8)/10 = 54/10 = 5.4

d) Range: The range is the difference between the largest and smallest numbers in the list:

8 - 1 = 7

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