Prove using identity and trigonometry to prove

Prove Using Identity And Trigonometry To Prove

Answers

Answer 1

Answer:

Proving a trigonometric identity refers to showing that the identity is always true, no matter what value of x x x or θ \theta θ is used. Because it has to hold true for all values of x x x, we cannot simply substitute in a few values of x x x to "show" that they are equal.

Step-by-step explanation:

Math


Related Questions

During a sale, a store offered a 25% discount on a bed that originally sold for $800. After the sale, the discounted price of the bed was marked up by 25%. What was the price of the bed after the markup? Round to the nearest cent.

Answers

The price of the bed after mark up is $475.00

What is discount?

Discount results in the reduction of the selling price of the product, which makes it more attractive for the customer.

The first discount given is 25% , therefore the price of the bed before mark up is

25/100 × 800

= 25×8

= 200

the price before mark up = 800-200 = $600

Another 25% is given after the first sale, there the price of the bed after mark up is

25/100 × 600

=$ 125

price after markup = 600-125

= $475.00

therefore the price of the bed after markup is $475.00

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Is the relation shown in the table below a function? (type in yes or no)

Is the relation shown in the table below a function? (type in yes or no)

Answers

Answer:

Yes

Step-by-step explanation:

To know if a table is a function or not, we have to see if 1 input only has 1 output.

Looking at the table each input only has 1 output, so it is a function.

PLEASE HELP TODAY!!!! WILL GIVE BRAINLIST

PLEASE HELP TODAY!!!! WILL GIVE BRAINLIST

Answers

Hello!

We will go tu use the pythagorean theorem!

So:

BA² = BC² + AC²

AC² = BA² - BC²

AC² = 52² - 20²

AC² = 2304

AC = √2304

AC = 48

6. Ashley has 1 2/3 yards of fabric. She uses 1 1/2 yards of fabric to make a dress. After Ashley makes her dress, how much fabric does she have left? ​

Answers

She has 1/6 fabric left after she makes her dress.
Steps: You subtract 1 2/3 by 1 1/2 and get 1/6.

What is the percent change from 310 to 155?​

Answers

Answer: 50% decrease

Step-by-step explanation:

50% of 310 = 155

310-155=155

50% decrease :)

ANSWER: 50% decrease

SOLUTION:

50% of 310 = 155

310-155=155

So in all the answer is.......

50% decrease  :)))))

-XOXOXO:)

(8,3) (2,5) rise over run

Answers

Answer:

slope= -1/3

Step-by-step explanation:

Rise over run is slope so I'm assuming you want to find the slope using those two points.

to find slope = y2 - y1 / x2 - x1

y2- 5           y1- 3

x2- 2           x1- 8

slope = 5-3/2-8

= 2/-6

= -1/3

What type of number is -16.8.

-Rational number
- Whole number
- Integer number

Answers

Answer:

Its an integer number

Step-by-step explanation:

hope this helps✨

The length of a rectangle is four times its width.
If the perimeter of the rectangle is 50in, find its length and width

Answers

Answer:

Hajj smart kya tum ham held

2/3 es equivalente a 4/5?

Answers

we can conclude that 2/3 is not equal to 4/5.

To determine if 2/3 is equivalent to 4/5, we can compare the fractions by checking if their ratios are equal. The ratio of 2/3 can be written as 2:3, while the ratio of 4/5 can be written as 4:5.

To check if the ratios are equal, we can cross-multiply and see if the products are equal. Cross-multiplying means multiplying the numerator of the first fraction with the denominator of the second fraction, and the numerator of the second fraction with the denominator of the first fraction.

For 2/3 and 4/5, we have:

2 * 5 = 10

3 * 4 = 12

Since 10 is not equal to 12, we can conclude that 2/3 is not equivalent to 4/5.

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Helpppppppp me plzzzzzzz

Helpppppppp me plzzzzzzz

Answers

Answer:

Length of Line AC = 26 units

Step-by-step explanation:

Given:

Line AC = [3x + 1] + 8

Line BC = [x - 2] + 2

Find:

Length of Line AC

Computation:

Line AB ║ Line L

So,

Using Mid-Point theorem;

[3x + 1] / 8 = [x - 2] / 2

2[3x + 1] = 8[x - 2]

6x + 2 = 8x - 16

8x - 6x = 16 + 2

2x = 18

x = 9

So,

Line AC = [3x + 1] + 8

Line AC = [3(9) + 1] + 8

Line AC = [27 + 1] + 8

Line AC = 28 + 8

Length of Line AC = 26 units

Colah Company purchased $2,000,000 of Jackson, Inc., 6% bonds at par on July 1, 2021, with interest paid semi-annually. Colah determined that it should account for the bonds as an available-for-sale investment. At December 31, 2021, the Jackson bonds had a fair value of $2,300,000. Colah sold the Jackson bonds on July 1, 2022 for $1,800,000.


Required:
1. Prepare Colah’s journal entries for the following transactions:

The purchase of the Jackson bonds on July 1.
Interest revenue for the last half of 2021.
Any year-end 2021 adjusting entries.
Interest revenue for the first half of 2022.
Any entries necessary upon sale of the Jackson bonds on July 1, 2022, including updating the fair-value adjustment, recording any reclassification adjustment, and recording the sale.
2. Complete the following table to show the effect of the Jackson bonds on Colah’s net income, other comprehensive income, and comprehensive income for 2021, 2022, and cumulatively over 2021 and 2022.

Answers

If Colah Company purchased $2,000,000 of Jackson, Inc., 6% bonds at par on July 1, 2021. The journal entries for the purchase of the Jackson bonds on July 1 is: Debit Available-for-sale securities $2,000,000

Credit Cash $2,000,000.

What is journal entry?

Journal entry is used by companies to record their day to day business transaction.

July 1 2021

Debit Available-for-sale securities $2,000,000

Credit Cash $2,000,000

December 31 2021

Debit Cash $60,000

Credit Interest income  $60,000

(6% ×$2,000,000 / 2)

December 31 2021

Debit Available-for-sale securities $300,000

Unrealized Gain - Other comprehensive income $300,000

($2,000,000 - $2,300,000)

June 30 2022

Debit Cash $60,000

Credit Interest income  $60,000

(6% ×$2,000,000 / 2)

The entry necessary upon sale of the Jackson bonds on July 1, 2022 is:

July 1 2022

Debit Available-for-sale securities  $2,300,000

Unrealized Gain-Other comprehensive income account $300,000

Credit Cash $1,800,000

Credit Realized Loss on the sale of Available-for-sale securities $200,000  

[$1,800,000 - $2,000,000= $200,000 (Realized Loss)]

2. Table to show the effect of the Jackson bonds on Colah’s net income,

                             2021                   2022                       Total

Net Income       $60 ,000        ($140,000)              ($80,000)

( 60,000 - $200,000= -$140,000)

OCI                       $300,000                                         $300,000

Comprehensive Income $360,000 ($140,000) $220,000

Therefore the  journal entries for the purchase of the Jackson bonds on July 1 is: Debit Available-for-sale securities $2,000,000

Credit Cash $2,000,000.

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What steps are used to solve the equation? g – 8 = 14 Complete the statements. First, both sides of the equation. The solution of the equation is . Check the solution by substituting for g and simplifying.

Answers

Answer:

g=22

Step-by-step explanation:

add 8 to both sides

g-8=14

g-8+8=14+8

g=14+8

g=22

The solution of expression g - 8 = 14 is,

⇒ g = 22

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The equation is,

⇒ g - 8 = 14

Now, We can simplify as,

⇒ g - 8 = 14

Add 8 both side,

⇒ g - 8 + 8 = 14 + 8

⇒ g = 22

Thus, The solution of expression g - 8 = 14 is,

⇒ g = 22

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Question 14 (essay worth 12 points)
(writing two step equations HC)

Given the equation 6x + 18 = 72:
Part A: Write a short word problem about a purchase made to illustrate the equation. (6 points)
Part B: Solve the equation showing all work. (4 points)
Part C: Explain what the value of the variable represents. (2 points) ​

Question 14 (essay worth 12 points) (writing two step equations HC) Given the equation 6x + 18 = 72:

Answers

A. Ram spent $18 on six pens and six books. The grand total is $72.

B. The cost of each pen is $9.

C. The variable is called x.

What is an equation?

A set of variables, constants, and mathematical operations such as addition, subtraction, multiplication, or division balanced by the equal sign is known as an equation. The equation's left-hand side (LHS) is on the left side, and its right-hand side (RHS) is on the right side (RHS).

Here, we have

Given: the equation 6x + 18 = 72:

A. The issue is that Ram spent $18 on six pens and six books. The total amount he paid is $72.

B. The following equation will be used to demonstrate this:

6x + 18 = 72

Compile similar terms.

6x = 72 - 18

6x = 54

On dividing,

x = 54 / 6.

x = $9

Hence, each pen will set you back $9.

C. The variable's value is x = 9.

Hence, the pen's price is 9.

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Solve for X: 57 Degrees 79 Degrees 4x+4

Solve for X: 57 Degrees 79 Degrees 4x+4

Answers

Answer:

x equals to 10

Step-by-step explanation:

every triangle is 180 degrees, so 180-(79+57)= 44.

4x+4 (reverse it), 44-4= 40, 40÷4= 10. so x=10.

I hope you understand!!!

Find the missing angle and side measures of Delta*ABC , given that

m angle A = 50 deg , m angle C = 90 deg , and CB = 16

Answers

The missing angle is <B= 40 degree and missing side length is AB = 12.25 and AC = 19.068.

To find the missing angle and side measures of ΔABC, we can use the properties of a triangle.

Given:

∠A = 50°

∠C = 90°

CB = 16

We can start by finding the measure of ∠B:

∠A + ∠B + ∠C = 180° (Sum of angles in a triangle)

50° + ∠B + 90° = 180°

∠B + 140° = 180°

∠B = 180° - 140°

∠B = 40°

Now, using Sine law

CB/ sin A = AB / sin C

16 / sin 50 = AB / sin 90

16 / 0.766044 = AB

AB = 12.25

Again 12.25 = AC/ sin B

12.25 = AC / sin 40

AC = 19.068

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Need help with this question. second drop down box is sum or difference.

Need help with this question. second drop down box is sum or difference.

Answers

Product rule of logarithms:

\(\log _a(xy)=\log _ax+\log _ay\)

For the given:

\(\log _b(MN)=lob_bM+\log _bN\)The logarithm of a product is the sum of the logarithms

eat breakfast at a cafe. the total check was $5. here's the money he left period why did he pay $5.75?

eat breakfast at a cafe. the total check was $5. here's the money he left period why did he pay $5.75?

Answers

Answer:

Tip.

Step-by-step explanation:

Since to total is $5 that means all taxes are already counted for.

He added the 75 cents as a tip.

2a+c=162.97

how do you use the elimination method for this

Answers

When 'a' is 10, 'c' is approximately 142.97. You can repeat this process for different values of 'a' to find corresponding values of 'c'. Keep in mind that there are infinitely many solutions to this equation

To use the elimination method to solve the equation 2a + c = 162.97, we need another equation with the same variables. However, as there is only one equation given, we cannot apply the elimination method directly.

The elimination method typically involves adding or subtracting equations to eliminate one of the variables, resulting in a new equation with only one variable. Since we have only one equation, we don't have the opportunity to eliminate variables using another equation.

In this case, we can solve the given equation directly by isolating one variable in terms of the other. Let's solve for 'c':

2a + c = 162.97

Rearrange the equation to isolate 'c':

c = 162.97 - 2a

Now, we have an expression for 'c' in terms of 'a'. This equation represents a line in the 'a-c' coordinate plane. We can choose any value for 'a', substitute it into the equation, and calculate the corresponding 'c' value.

For example, let's say we choose 'a' = 10:

c = 162.97 - 2(10)

c = 162.97 - 20

c = 142.97

So, when 'a' is 10, 'c' is approximately 142.97.

You can repeat this process for different values of 'a' to find corresponding values of 'c'. Keep in mind that there are infinitely many solutions to this equation since we have one equation and two variables.

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What is the size matrix T?

Answers

The size of a matrix is typically described using the number of rows and columns, such as a 3x4 matrix, where there are 3 rows and 4 columns.

Matrices are commonly used in mathematics, engineering, physics, and computer science to represent data, perform calculations, and solve problems. The size of a matrix is an important factor in determining its properties and the operations that can be performed on it.

For instance, if T refers to a transformation matrix used in computer graphics, it could be a 4x4 matrix that describes the translation, rotation, and scaling of a 3D object in space. If T refers to a transition matrix used in Markov chains, it could be a square matrix with dimensions equal to the number of states in the chain.

In summary, the size of a matrix T depends on the context in which it is used, and without additional information, it is not possible to determine its dimensions or properties.

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Which conclusion does the diagram support?

Which conclusion does the diagram support?

Answers

Answer:

C. AB/BC=FE/ED

Step-by-step explanation:

I need to know how to do this problem please

I need to know how to do this problem please

Answers

Answer: Total expenses if 3 widgets are produced is $11,018.00

Step-by-step explanation: The variable cost per unit is given by the coefficient of q in the expense function. In this case, the variable cost is $6.00 per widget. To find the variable costs to produce 2 widgets, we simply multiply the variable cost per unit by the number of units produced: Variable costs for 2 widgets = 2 x $6.00 = $12.00 Therefore, the variable costs to produce 2 widgets is $12.00. To find the variable costs to produce q widgets, we simply multiply the variable cost per unit by the number of units produced: Variable costs for q widgets = q x $6.00 = $6q Therefore, the variable costs to produce q widgets is $6q. To find the total expenses if 3 widgets are produced, we can use the expense function and substitute q = 3:E = 6.00 q + 11,000

E = 6.00 (3) + 11,000

E = 18.00 + 11,000

E = 11,018.00 Therefore, the total expenses if 3 widgets are produced is $11,018.00.


James T-shirt business uses the demand function P = -Q+31 and the supply function P = Q-17. According to these functions, what will the
equilibrium point (P.Q) be for James T-shirt business?

Answers

The equilibrium point for James T-shirt business is (P, Q) = (7, 24).

To find the equilibrium point (P, Q) for James T-shirt business

we need to set the demand function equal to the supply function and solve for the values of P and Q.

Demand function: P = -Q + 31

Supply function: P = Q - 17

Setting them equal:

-Q + 31 = Q - 17

Adding Q to both sides and subtracting 31 from both sides:

2Q = 48

Dividing both sides by 2:

Q = 24

Now, we can substitute this value of Q into either the demand or supply function to find the corresponding value of P.

P = Q - 17

P = 24 - 17

P = 7

Therefore, the equilibrium point for James T-shirt business is (P, Q) = (7, 24).

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A rocket is launched in the air. Its height in feet is given by h(t) = - 16t ^ 2 + 112t where t represents the time in seconds after launch. What is the appropriate domain for this situation?

Answers

Answer:

Step-by-step explanation:

A

Estimate 98.7 / 10.1 = ? (Show work)

Answers

Answer:

10

Step-by-step explanation:

Round both numbers to the nearest tens place.

98.7 rounds up to 100

10.1 rounds down to 10

100/10=10

What is the additive Inverse of 3 1/4​

Answers

Answer:

the answer is -3 1/4

Step-by-step explanation:

The additive Inverse of 3 1/4​ will be - 3 1/4.

What is inverse of a function?

Suppose that the given function is \(f:X\rightarrow Y\)

Then, if function 'f' is one-to-one and onto function (a needed condition for inverses to exist), then, the inverse of the considered function is

It simply means, inverse of 'f' is undo operator, that takes back the effect of 'f'

We are given the number as;

3 1/4​ = 13/4

Therefore, the additive Inverse of 3 1/4​ will be;

Negative 13/4 = - 3 1/4

Hence, the additive Inverse of 3 1/4​ will be - 3 1/4.

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I NEES HELP STATISTICS

I NEES HELP STATISTICS

Answers

Based on the given information, we know that the mean starting salary of the job placement agency's clients last year was $40,000. Here's how we can evaluate each statement:

- This year at least one of their clients will have a starting salary of at least $40,000.
There is not enough information to determine whether this statement is true or false. The mean starting salary from last year does not provide information on this year's salaries.

- Last year some of their clients had a starting salary of exactly $40,000.
This statement is true. Since the mean includes all starting salaries, it is possible for some clients to have had a starting salary of exactly $40,000.

- Last year fewer than half of their clients had a starting salary of $40,000 or less.
This statement is false. Since the mean starting salary is $40,000, it is impossible for fewer than half of the clients to have had a starting salary of $40,000 or less.

- Last year some of their clients had a starting salary of more than $36,000.
This statement is true. Since the mean starting salary is $40,000, it is possible for some clients to have had a starting salary of more than $36,000.

- Last year at least one of their clients had a starting salary of at least $40,000.
This statement is true. Since the mean starting salary is $40,000, it is possible for at least one client to have had a starting salary of at least $40,000.

Therefore, the statements that must be true based on the given information are:

- Last year some of their clients had a starting salary of exactly $40,000.
- Last year some of their clients had a starting salary of more than $36,000.
- Last year at least one of their clients had a starting salary of at least $40,000.

If z varies directly with the square of x and inversely with the cube of y, when x = 8, y = 2, and z = 12, what is x when y = 1 and z = 24?
PLEASE HELP!!! :))))

Answers

Step-by-step explanation:

it just means

z = k×x²/y³

12 = k×8²/2³ = k×64/8 = k×8

k = 12/8 = 3/2

24 = k×x²/1³ = 3/2 × x²/1 = 3/2 × x²

24/(3/2) = x²

48/3 = x²

16 = x²

x = 4 or

x = -4

Find an ordered pair (x, y) that is a solution to the equation.
3x-y=6

Answers

To find an ordered pair (x, y) that is a solution to the equation 3x - y = 6, we can choose any value of x and solve for y.

For example, if we let x = 2, then:

3x - y = 6
3(2) - y = 6
6 - y = 6
-y = 0
y = 0

So, when x = 2, y = 0, and the ordered pair (2, 0) is a solution to the equation 3x - y = 6.
The answer is 2,0 I hope that helps you

which sides form a right triangle​

which sides form a right triangle

Answers

Answer:

c

Do i get brainliest lol

The temperature during the day is 5.4 Celsius, after sunset the temperature drops 7.5 Celsius. Wind chill makes the temperature after sunset feel 6.3 Celsius colder. What temperature does it feel like after sunset

Answers

Temperature during the day = 5.4 C

After sunset drops = 7.5 C

5.4 - 7.5 = -2.1 C

Wind chill drops 6.3 C

-2.1 - 6.3 = -8.4°C

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