tan^4x-sec^4x=1-2 sec^2(x)
verify

Answers

Answer 1
tan⁴x - sec⁴x = 1 - 2sec²x

tan²x = sec²x - 1

tan⁴x - sec⁴x = 1 - 2sec²x
(tan²x)² - sec⁴x = 1 - 2sec²x
(sec²x - 1)² - sec⁴x = 1 - 2sec²x

(sec²x)² - 2 * sec²x + 1 - sec⁴x = 1 - 2sec²x
sec⁴x - 2 sec²x + 1 - sec⁴x = 1 - 2sec²x

sec⁴x can be cancelled:
- 2 sec²x + 1 = 1 - 2sec²x

1 - 2sec²x = 1 - 2sec²x

Related Questions

Quincy found 120 shells during four days at the beach. if quincy found the same number of shells each day, how many shells did he find each day?

Answers

If Quincy finds 120 shells in 4 days, we can use the equation 4x = 120 to find how many shells she found each day. 4x = 120 If we divide both sides by four we get x = 30 So Quincy found 30 shells each day.
120 shells over 4 days
120/4 gives shells per day
30 shells per day.

Gilbert is graduating from college in twelve months, but he will need a loan in the amount of $5,125 for his last two semesters. He may either receive an unsubsidized Stafford Loan with an interest rate of 6.8%, compounded monthly, or his parents may get a PLUS Loan with an interest rate of 7.8%, compounded monthly. The Stafford Loan has a grace period of six months from the time of graduation. Which loan will have a higher balance at the time of repayment and by how much? (3 points)

The Stafford Loan has a higher balance by $134.35. The Stafford Loan has a higher balance by $274.36. The PLUS Loan has a higher balance by $54.79. The PLUS Loan has a higher balance by $85.22.

Answers

Stafford: $ 5,673.71 PLUS: $ 5,539.36
Final answer:

To determine which loan will have a higher balance at the time of repayment, we need to calculate the future value of both loans. The Stafford Loan will have a higher balance by approximately $234.36.

Explanation:

To determine which loan will have a higher balance at the time of repayment, we need to calculate the future value of both loans. Let's start with the Stafford Loan:

Principal: $5,125

Interest Rate: 6.8%

Compounding Period: Monthly

Time: 12 months

Using the formula for future value of an ordinary annuity, we can calculate the balance of the Stafford Loan at the time of repayment:

FV = P * ((1 + r)^n - 1) / r

FV = 5125 * ((1 + 0.068/12)^(12*1) - 1) / (0.068/12)

Calculating this gives us an approximate loan balance of $5,259.35.

Now let's calculate the future value of the PLUS Loan:

Principal: $5,125

Interest Rate: 7.8%

Compounding Period: Monthly

Time: 12 months

Using the same formula, we can calculate the balance of the PLUS Loan at the time of repayment:

FV = P * ((1 + r)^n - 1) / r

FV = 5125 * ((1 + 0.078/12)^(12*1) - 1) / (0.078/12)

Calculating this gives us an approximate loan balance of $5,024.99.

Therefore, the Stafford Loan will have a higher balance at the time of repayment by approximately $234.36. The correct answer is: The Stafford Loan has a higher balance by $234.36.

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Based on her past experiences, a homeowner estimates that appliances lose 25% of their resale value each year. If her estimate is accurate, how much will an appliance currently valued at $3,200 be worth in 10 years?

Answers

Final answer:

The appliance will be worth approximately $817.66 in 10 years.

Explanation:

To calculate the value of the appliance in 10 years, we need to find how much it will be worth after each year based on the depreciation rate of 25%. We can use the formula:

Value after n years = Initial value × (1 - rate)^n

Substituting the given values, we get:

Value after 10 years = $3,200 × (1 - 0.25)^10 = $3,200 × 0.75^10 ≈ $817.66

Therefore, the appliance will be worth approximately $817.66 in 10 years.

Final answer:

Using the exponential decay formula, an appliance initially valued at $3,200 is estimated to be worth about $180.16 after 10 years, assuming it loses 25% of its value each year.

Explanation:

To find out how much an appliance currently valued at $3,200 will be worth in 10 years, given that it loses 25% of its resale value each year, we can use the formula for exponential decay:

Future Value = Present Value × (1 - Rate of Decay)Number of Years

Here, the Present Value is $3,200, the Rate of Decay is 25% or 0.25, and the Number of Years is 10. Plugging these into the formula gives us:

Future Value = $3,200 × (1 - 0.25)10

Future Value = $3,200 × (0.75)10

Future Value = $3,200 × 0.0563

Future Value ≈ $180.16

The appliance would be worth approximately $180.16 in 10 years.

solve for d when 2x-2yd=y+xd ...?

Answers

2x-2yd=y+xd 2x-y=xd+2yd 2x-y=d(x+2y) (2x-y)/(x+2y)=d So the answer is d=2x−yx+2y

Part 1: Create a relation of five ordered pairs that is a function. In complete sentences explain why this relation is a function.
Part 2: Create a relation of five ordered pairs that is not a function. In complete sentences explain why this relation is not a function.

...?

Answers

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

Part 1 
(1,2) (3,4) (5,6), (-2,5) (-.6,7)} 
This relation IS a function because none of the ordered pairs have the same first number. 

Part 2 
{(1, 2), (1, 4), (3, 5)}. This relation is NOT a function because there are two ordered pairs, (1, 2) and (1, 4) with the same first element but different second elements. In other words, for the same inputs we must have the same outputs.

Find the approximate value of the circumference of a circle with the given radius. Use = 3.14. Round your answer to the nearest hundredth.

5.1 cm

Answers

The circumference of a circle:
C = 2 r π
If r = 5.1 cm:
C = 2 · 5.1 · 3.14 = 32.028 cm ≈ 32.03 cm
Answer:
The approximate value of the circumference is 32.03 cm ( rounded to the nearest hundredth ).

what is 2/5 as percentage

Answers

First, change 2/5 into a decimal by dividing 2 by 5. Decimal= .4. Now move the decimal 2 places to the right to find percentage. Answer is 40%

Answer:

40

Step-by-step explanation:

divide 2 by 5 and you get 0.40 and then multiplicate by 100 and you get 40

Which number is a perfect cube? A.25 B.36 C.125 D.300

Answers

answer is C.125

125 = 5^3

some investments in the stock market have earned 10% annually. At this rate, earning can be found using the formula A=p(1.10)n, where A is the total value of the investment, P is the initial value of the investment, and n is the number of years the money is invested. If $1,5oo is invested in the stock market at this annual rate of return, what is the expected total value after 18 years?
A.) $29,700.00 B.) $28,050.00 C.) $8,339.88 D.) $7,581.71 I need some help on this one, I cant figure it out. I would say what I think it is, but I don't even have a good guess.

Answers

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The answer to the above question is C which is $8,339.88. below is the solution:

just plug in 1500 for p, and 18 for n: 

1500(1.10)^18 = 8339.88

The blueprints for a me house are scaled so that 1/4 inch equals 1 foot, what is the scale factor in terms of inches to inches?

Answers

.25/12 is the scale factor. I hope I helped ^^

What is 6/24 simplified?

Answers

6/24= 6/6 = 1
        24/6 = 4
so, it is 1/4

Your new job guarantees you an eight percent raise for each year with the company. if your initial salary is $42,200, write an equation to model your salary after t years.

Answers

42200t*8% maybe I think

Answer:S=42200(1.08)^t

Step-by-step explanation:

What are the constant terms in the expression?
8m−5n+2+m−14

Answers

The constant terms are: -14, and +2

Answer: [tex]2 , -14[/tex]

Step-by-step explanation:

We know that the constant terms are the specific terms in an algebraic expression that have only numbers or numerical value or without any variable.  

For example : The constant term in [tex]4x^2 -5m+16[/tex]  is 16.

Let's take one more example , the constant term in [tex]3x-2y-4-7xy[/tex] is -4.

Given expression is : [tex]8m-5n+2+m-14[/tex]

Here, the terms are : [tex]8m,\ -5n,\ 2,\ m,\ -14[/tex]

Terms having variable = [tex]8m,\ -5n,\ m[/tex]

Terms without variable = [tex]2 , -14[/tex]

⇒ Constant terms =[tex]2 , -14[/tex]

Hence, the constant terms in the given expression = [tex]2 , -14[/tex]

Select all of the following that are a direct variation.

Songs are 99 cents each to download.
Tickets for rides at the fair are $1 each.
Arcade games are 50 cents or $1.
To go tubing it is $5 to rent the tube and $7 for each hour.

Answers

Only these are direct variations:

Songs are 99 cents each to download.
Tickets for rides at the fair are $1 each.

Because, for each of them, the total value will be always the product of the number of items times a constant (the unit price).

 

short term goals are designed to be met in
A. less than 1 year
B. less than 6 months
C. between 6 and 9 months
D. between 1 and 5 Years

Answers

Answer:

A. less than 1 year is the answer.

Step-by-step explanation:

Short term goals are designed to be met in  : A. less than 1 year

According to accounting concepts, a short term goal is less than one year and goals more than one year are considered long term goals.

Short term goals are like short term investments, that can be accomplished soon. Few other examples are - cutting costs, learning new skills, changing or having a good attitude etc.

Answer:

Correct answer would be: B less than 6 months

Step-by-step explanation:

Took test on edg 2020

What is the solution to log4 8x=3?

Answers

Exponential form 4^3=8x
x =8

Answer:  The required solution is  x = 8.

Step-by-step explanation:  We are given to solve the following logarithmic equation:

[tex]\log_4{8x}=3.[/tex]

We will be using the following logarithmic property in the solution:

[tex]\log_ab=c~~~~~\Rightarrow b=a^c.[/tex]

The solution is as follows:

[tex]\log_4{8x}=3\\\\\Rightarrow 8x=4^3\\\\\Rightarrow 8x=64\\\\\Rightarrow x=\dfrac{64}{8}\\\\\Rightarrow x=8.[/tex]

Thus, the required solution is  x = 8.

free upvote + friend 4 free just ANSWER THE QUESTION


Erica filled 2/5 of a page of her notebook on Monday. She filled 5/6 of a page on Tuesday.

How many pages did Erica fill in her notebook?
Express your answer in simplest form.

Answers

2/5 + 5/6
2x6 = 12 5x6 = 30
5x5 = 25 6x5 = 30
12/30 + 25/30
= 37/30

A number decreased by 5 is less than 32

Answers

x=unknown number
x-5<32

to solve add 5 to each side
x<37

Find two consecutive even integers whose sum is 126

Answers

The two you are looking for is 62 and 64. hope that helps
62 and 64
is the soultion

As Jupiter revolves around the sun, it travels at a speed of approximately 8 miles per second. Convert this speed to miles per minute. At this speed, how many miles will Jupiter travel in 4 minutes? Do not round your answers.

Answers

First to convert it you need to multiply 8 miles per second by 60 seconds because there are 60 seconds in a minute:

 8 miles    x    60 s 
1 second        1 min

The unit of seconds will cancel out so you will get 480 miles/ min

To get how far it travels in 4 min you need to multiply the speed by 4 minutes

480 miles   x  4 min
   1 min

The unit of minutes will cancel out to get 1920 miles

Therefore, jupiter travels at 480 miles per minute and in 4 minutes, it will travel 1920 miles.

Jupiter travels at 480 miles per minute and in 4 minutes, it will travel 1920 miles.

What is speed?

Speed is defined as the ratio of the time distance travelled by the body to the time taken by the body to cover the distance.

First to convert it you need to multiply 8 miles per second by 60 seconds because there are 60 seconds in a minute:

8 miles    x    60 s

1 second        1 min

The unit of seconds will cancel out so you will get 480 miles/ min

To get how far it travels in 4 min you need to multiply the speed by 4 minutes

480 miles   x  4 min

  1 min

The unit of minutes will cancel out to get 1920 miles

Therefore, Jupiter travels at 480 miles per minute and in 4 minutes, it will travel 1920 miles.

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What is the answer for 62 divided 5,821?

Answers

there's the answer ☺☺☺☺☺

The simplified expression of 62/5821 is 62/5821

How to simplify the expression

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

62 divided 5,821

This means that we divide 62 by 5821

So, we have the following representation

62/5821

In the above, we have

The numerator 62 is less than the denominator 5821

This means that the expression is already simplified

Hence, the simplified expression is 4/11

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What does a boy who likes to play with switches do

Answers

In a world filled with gadgets and gizmos, there exists a young enthusiast whose passion lies in the simple yet fascinating realm of switches.

This boy, with a twinkle in his eye, finds immense joy in the art of toggling buttons and flipping switches. His playtime is a symphony of clicks, a dance of circuits coming to life. Each switch, a gateway to a new adventure, ignites his imagination and curiosity.

Whether it's the satisfying snap of a light switch or the soft hum of an electronic button, he revels in the tactile magic of control. Through this seemingly mundane act, he discovers the power to illuminate, connect, and create, turning his play into a journey of endless possibilities.

The price of a new Apple Ipod has increased by 1/4. If the original price of the Apple was $200, what is the new price today? ...?

Answers

That would be the original price of apple * incrased apple

200 * 1.25 = 250

23!-22! is equal to what and how ?? ...?

Answers


23!-22! is equal 
=23!−22!=23∗22!−22!=22!(23−1)=22!∗22

Please look at the process and you would get your answer of how

What is 5.105 rounded to tge nearest hundredth?

Answers

The answer to this is 5.11.

Write the equation of a line in slope-intercept form that is perpendicular to the line y=3/5x-1 and passes through the point (-9, 4).

Answers

y = 3/5x - 1....slope here is 3/5. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign. So the slope we need is -5/3.

y = mx + b
slope(m) = -5/3
(-9,4)...x = -9 and y = 4
now we sub and find b, the y int
4 = -5/3(-9) + b
4 = 15 + b
4 - 15 = b
- 11 = b

so ur perpendicular line is : y = -5/3x - 11

Working alone mona can paint a room in 4 hours. lisa can paint the exact same room in 3 hours. how long should it take to paint the room if they work together?

Answers

Final answer:

To find out how long it would take Mona and Lisa to paint the room together, we need to calculate their combined work rate. Mona can paint the room in 4 hours, so her work rate is 1/4 of the room per hour. Lisa can paint the room in 3 hours, so her work rate is 1/3 of the room per hour. Their combined work rate is 7/12 of the room per hour. Therefore, it would take them approximately 1 hour and 43 minutes to paint the room together.

Explanation:

To find out how long it would take Mona and Lisa to paint the room together, we need to calculate their combined work rate. Mona can paint the room in 4 hours, so her work rate is 1/4 of the room per hour. Lisa can paint the room in 3 hours, so her work rate is 1/3 of the room per hour. To calculate their combined work rate, we add their individual work rates: 1/4 + 1/3 = 3/12 + 4/12 = 7/12 of the room per hour. Since they are working together, we can use their combined work rate to determine how long it would take to paint the entire room. The formula to calculate time is: Time = Work / Rate. In this case, the work is the entire room, which is 1, and the rate is 7/12 of the room per hour. Therefore, the time to paint the room when they work together is: Time = 1 / (7/12) = 12/7 hours, or approximately 1 hour and 43 minutes.

Select the equation of the line that passes through the point (3, 5) and is perpendicular to the line x = 4.

y = 5
x = 5
y = 4
x = 3

Answers

   Through the point ( 3, 5 ) passes the infinitely many lines, but only one is also perpendicular to the line x = 4.
   Answer:
   A ) y = 5
   Graph is in the attachment.

please help on number 13

Answers

Let x be the multiplication factor, then
35x = 40
x = 40/35 = 8/7

Therefore, 42(8/7) = 48

Also 49(8/7) = 56

The missing numbers are
42        48

49        56

Rhett is solving the quadratic equation 0= x2 – 2x – 3 using the quadratic formula. Show the correct substitution of the values a, b, and c into the quadratic formula?


Answers

Formula for solving (finding x intercepts) quadratic equation is:

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

Quadriatic equation we can write as:
ax^2 + bx + c = 0
comparing this with given equation we can see that:
a = 1
b = -2
c = -3
if we express this in formula for solving equation we get

[tex]x = \frac{-(-2) +- \sqrt{(-2)^2 - 4*1*(-3)} }{2*1} [/tex]

Answer:

A. Is The Answer

Step-by-step explanation:

Did On Edge 2022

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