1/1-cos x
+
1/1+cos x

Answers

Answer 1

Answer:

2 csc^2 x

Step-by-step explanation:

using a common denominator, that is

((1+cosx)+(1-cosx))/(1-cos^2c) = 2/sin^2x

Answer 2

Answer:

sin^2x

Step-by-step explanation:

(1+cosx)(1-cosx)

Difference of squares

1-cos^x

Pythagorean identity

sin^2x


Related Questions

PLEASE HELP ME ON THIS QUESTION!! Ren invested in two businesses in 2010. She invested $50,000 in Dawn's Flowers, which guaranteed a 7% return per year.


Her investment in Pop's Coffeeshop is represented by the function V(t)=24,500(1.06)t.


Which statements are true?


Select each correct answer.





Dawn's Flowers earned a greater rate of return than Pop's Coffeeshop.


​​In 2020, the Pop's Coffeeshop investment will have a greater value than the Dawn's Flowers investment.


Ren's initial investment in Dawn's Flowers was greater than her initial investment in Pop's Coffeeshop.


​In 2015, the Pop's Coffeeshop investment had a greater value than the Dawn's Flowers investment.

Answers

Answer:

Dawn's Flowers earned a greater rate of return than Pop's Coffeeshop

Ren's initial investment in Dawn's Flowers was greater than her initial investment in Pop's Coffeeshop.

Find the measure of CD.
Round to the nearest tenth.
mCD= [?]

Answers

Answer:

The arc CD is: 114.64°

Step-by-step explanation:

The given triangle inside the circle, we can get the trigonometric ratio such as

sin x = opposite / hypotenuse

Here:

The opposite side of angle x = 36.7/2

The hypotenuse = 21.8

Thus,

sin x = [36.7/2] / [21.8]

sin x = 18.35 / 21.8

sin x  = 0.8417

x = arc sin (0.8417)

x = 57.32°

Thus, the angle formed at the center by CD is:

2 x 57.32 = 114.64°

Therefore, the arc CD is: 114.64°

Answer:

The arc CD would be 114.6°

We use- sin x = opposite / hypotenuse

In the problem the opposite side of angle x = 36.7/2 and the hypotenuse = 21.8

So:

sin x = [36.7/2] / [21.8]

sin x = 18.35 / 21.8

sin x = 0.8417

x = arc sin (0.8417)

x = 57.32°

So the angle formed at the center by CD would have to be 2 x 57.32 = 114.64°

BUT, it says to round to the nearest tenth, so the answer would therefore, the arc CD is: 114.6°

Multiply and divide decimals.
One pound of chocolate chip cookies cost $3.79. David buys exactly 5 pounds of chocolate chip cookies. How much will the cookies cost?
State Your answer. Give Details. Explain what you did and justify Your steps.
And also, you'll get brain if u do these directions. :)

Answers

Answer:

5 pounds of chocolate chip cookies cost $18.95.

Step-by-step explanation:

If one pound of chocolate chip cookies cost $3.79, then 5 pounds of chocolate chip cookies will cost 3.79 times 5 dollars, which is equal to $18.95.

Hope this helps!

What is the minimum of the sinusoidal function?

Answers

Answer: The minimum is -4.

Step-by-step explanation:

The minimum of a function:

y = f(x)

will be the smallest value of y that the function gives.

such that, if the minimum is y = m

m ≤ f(x)   ∀ x

In this case, we can see that the smallest value of y is:

y = -4

Then the minimum of the sinusoidal function is -4.

A profit of a football club after a takeover is modeled by p(t) = t3 - 14t2 + 20t + 120, which t is the number of years after the takeover. In which years was the club making loss?

Answers

t = 5, so after 5 years
p(t) = t^3 - 14t^2 + 20t + 120

Take derivative to find minimum:
p’(t) = 3t^2 - 28t + 10

Factor to solve for t:
p’(t) = (3t - 2)(t - 5)
0 = (3t - 2)(t - 5)

0 = 3t - 2
2 = 3t
2/3 = t

Plug 2/3 into original equation, this is a maximum. We want the minimum:

0 = t - 5
5 = t

Plug back into original:
5^3 - 14(5)^2 + 20(5) + 120
125 - 14(25) + 100 + 120
125 - 350 + 220
- 225 + 220
p(5) = -5

The club losses during the years 4.89 years<t<11.29 years.

What is Graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

Given,

Profit of a football club after a takeover is modeled by p(t) = t³ - 14t² + 20t + 120,

t is the number of years after the takeover

We need to find in which  years was the club making loss

p(t) = t³ - 14t² + 20t + 120,

the profit is negative when the club is in loss.

Plot the cubic equation

The profit p(t) is negative in the interval (4.89,11.29)

The number of years t cannot be a negative number

Hence the club lost during the years 4.89 years<t<11.29 years.

To learn more on Graph click:

https://brainly.com/question/17267403

#SPJ2

12) Find the zeros of the function:
f(x) = x2 + 5x – 36
IS

Answers

Answer:

x² +5x - 36

= x² - 4x + 9x - 36

= x(x - 4) +9(x - 4)

= (x - 4) (x+9)

so x = 4, - 9

Write -√-49 as an imaginary number using i.
Represent 4-3i on the graph

Answers

- /-49
-/-1 * 7 * 7
-7i

4 - 3i
Go to 4 on the x axis (right)
Go to -3i on the y axis (down)
Your coordinate is (4, -3i)

To graph -3i, it is like 0 - 3i
Your coordinate is (0, -3i)

The rectangle can be made into a hollow cylinder with height 40cm and radius 1.910cm.
a) calculate the volume of this cylinder.

Answers

Answer:

458.45 cm³

Step-by-step explanation:

Volume of a cylinder is A = πr²h.

A = π(1.910)²(40)

A = 458.43 cm³

The price of Stock A at 9 A.M. was ​$12.21. Since​ then, the price has been increasing at the rate of ​$0.11 each hour. At noon the price of Stock B was ​$12.71. It begins to decrease at the rate of ​$0.15 each hour. If the two rates​ continue, in how many hours will the prices of the two stocks be the​ same?

Answers

Answer:

mildiu usa so lapuaña kqyiq iwguiq oga oga. apphq. kgaoa

Step-by-step explanation:

suost. oaabqj the ksysa

5. Licorice are 5 cents. How many licorice can you buy
with 10 cents?

Answers

Answer:

2

Step-by-step explanation:

5+5=10

Each licorice is 5 cents, if you have 10 cents, you’ll be able to buy 2 licorice

how many perfect square are there between 1,000,000 and 9,000,000?​

Answers

Answer:

1999

Step-by-step explanation:

The square root of 1,000,000 = 1,000.

The square root of 9,000,000 = 3,000.

This means that the number of perfect square will be every number from 1,000^2 to 3,000^2. To find how many numbers that is, just do 3000-1000 = 2000, and then subtract one because otherwise you would be counting the 3000^2 which you don't want to do (it asks how many perfect squares are between the two numbers).

2000 - 1 = 1999.

The number of perfect squares between the values 1,000,000 and 9,000,000 would be 1999

Taking the square root of the boundaries :

√1,000,000 = 1000

√9,000,000 = 3000

The number of perfect squares would be :

[(√9,000,000 - √1,000,000) - 1]

[3000 - 1000] - 1

2000 - 1

= 1999

Hence, the number of perfect squares would be 1999.

Learn more : https://brainly.com/question/7287026

Will give brainliest
What is the missing reason in step three?
A.SAS
B.SSS
C. Triangle sum theorem
D. CPCTC

Answers

wouldn’t it be B. SSS

Use the substitution method to solve the system of equations. choose the correct ordered pair.x+y=12 -x=-y+10

Answers

Answer:

x=1 y=11

Step-by-step explanation:

Hopefully this helps, If you need some explaining just comment

Elena went 60 meters in 15 seconds. Noah went 50 meters in 10 seconds. Elena and Noah both moved at a constant speed. Who went faster?

Answers

Answer:

Noah went faster.

Step-by-step explanation:

Elena: 60 divided by 15 = 4

Noah: 50 divided by 10 = 5.

5 meters per second is greater than 4 meters per second, making Noah faster than Elena.

Complete the table for

y = x/4 -1

Answers

Answer:

X     Y    

0     -1

2     -0.5

4     0

6     0.5

8     1

Step-by-step explanation:

I hope i got that right

Who can help me with this

Answers

Answer:

Growth

Step-by-step explanation:

Given

[tex]\frac{2}{3}(2.5)^x[/tex]

Required

Growth or decay

The general form is:

[tex]y = ab^x[/tex]

Such that:

[tex]b = rate[/tex]

For b, we have the following conditions:

[tex]b > 1[/tex] ----- Growth

[tex]0<b <1[/tex] --- Decay

[tex]b = 1[/tex] ---- None

Compare [tex]\frac{2}{3}(2.5)^x[/tex] to [tex]y = ab^x[/tex]

[tex]b = 2.5[/tex]

Because 2.5 > 1, then the first condition applies (growth)

Write the set using the roster method A={a|a an even number and 15< a< =25}

Answers

Answer:

{16, 17, 18, 19, 20, 21, 22,23, 24, 25}

Step-by-step explanation:

Given the set A={a|a an even number and 15< a< =25}

The inequality 15< a< =25 mean the set A consists of all the values between 15 and 25 with 25 inclusive (due to presence of the equal to sign)

Hence the required set A are {16, 17, 18, 19, 20, 21, 22,23, 24, 25}

Note that 15 is excluded from the set of number since 15<a i.e a > 15

Find the equation of a line perpendicular to x=−4 that contains the point (−3,4). Write the equation in slope-intercept form.

Answers

Answer:

y=4

Step-by-step explanation:

We recognize x=−4 as a vertical line, so its perpendicular will be horizontal. The equation of the horizontal line containing the point (−3,4) is given by y=4.

The slope-intercept form of a line perpendicular to x=−4 that contains the point (−3,4) is y = 4.

What is the slope of a line that is perpendicular to the other line?

The slope-intercept form of a line is y = mx + c.

Here, m = slope and c = y-intercept of the line.

The equation of the given line is x = - 4

Therefore, the given line is a vertical line.

Now, the line that is perpendicular to the line x = - 4, is a horizontal line.

Now, the horizontal line that passes through the point (- 3, 4) is y = 4.

Learn more about the slope-intercept form of a line here: https://brainly.com/question/15000427

#SPJ3

A set of equations is given below:

Equation S: y = x + 9
Equation T: y = 2x + 1

Which of the following steps can be used to find the solution to the set of equations? (4 points)

x = 2x + 1
x + 9 = 2x
x + 1 = 2x + 9
x + 9 = 2x + 1

Answers

it’s the first one! hope i helped if it’s wrong i’m sorry :(

Which statement is true based on the graph ?

Answers

Answer:

C: The speed increases from A to F

Step-by-step explanation:

Check each node A to F including A and F.

B is higher than A, C is higher than B, ...

This is true for all of them, so it is increasing.

The speed of the car is increasing in the time interval from point A to point F. Option C is correct.

What is speed?

Speed is defined as when an object is in motion, the distance covered by that object per unit of time is called speed.

What is the graph?

The graph depicts the relationship between the x and y axes through the use of curves.

Here,
The graph shows the speed and time relation of the car,
Where,
The speed of the car is increasing from A to F,
The speed of the car is decreasing from F to G,
The speed of the car is increasing from G to H,
The speed of the car is decreasing from H to K,

Thus, the car's speed increases over the time span from point A to point F. Option C is the right answer.

Learn more about graphs here:

brainly.com/question/16608196

#SPJ2


y= x/5 +3
a line perpendicular to this line would have a slope of

Answers

-5 I believe!!!!!!!!!

Find the third, fifth, and eleventh terms of the sequence described by the rule.
A(n) = - 6+ (n - 1)(6)
A(3)= ?

Answers

Answer:

A(3) = 6

A(5) = 18

A(11) = 54

PLS MARK AS BRAINLIEST

1. Lois has 10 coins in quarters and dimes in their pocket. After counting, the total value is $1.45. How many of each coin did Lois have?

Answers

Answer:

5 quarters and 2 dimes

Step-by-step explanation:

5 quarters make 1.25 + 10 cents = 1.45

Answer: she had five quarters and 2 dimes

Step-by-step explanation:

Which is an example of figurative language? 10 points

Question 13 options:

1)

Definition

2)

Evidence

3)

Metaphor

4)

Claim

Answers

Answer:

Metaphor

Step-by-step explanation:

Figurative Language: Simile, Metaphor, Personification, Hyperbole

A metaphor is an example of figurative language

Sasha ate 3 pieces of bacon for breakfast and ate some pieces for lunch. How many pieces of bacon did she eat today?

Answers

3+x
This is a trick question. Unless we know how much she’s eaten for lunch, we can’t figure out how much she ate.

Simply
x + 50 × 10 = 150​

Answers

Answer:

x + 50 × 10 = 150

x+500=150

x=150-500=-350

Step-by-step explanation:

solution,

here,

given,

x+50*10 = 150

or, x+500=150

or, x= 150 -500

therefore, x= -350

hope this helps u..

A class of 195 students went on a field trip. They took 19 vehicles, some cars and some buses. If
each car holds 5 students and each bus hold 25 students, how many buses did they take?

Answers

Answer:

1car 8 bus

Step-by-step explanation:

1×5=5

8×25=190

all vertical and horizontal cross-sections of any Cube are all the same size and shape what about vertical and horizontal cross-sections of a pyramid are they all the same size are they all the same shape discuss why or why not​

Answers

Answer:

All the horizontal sections are the same shape like their base, but have different sizes.

All vertical sections through top are triangles, size are different.

The vertical sections not cut through top are 4 sided shapes, sizes are different.

Step-by-step explanation:

How many real and how many are imaginary
Please Explain how to do it

Answers

Answer:

no idea bud

Step-by-step explanation:

Answer:

There are no real solutions, and 2 imaginary solutions.

Step-by-step explanation:

There are no real solutions since the function never touches the x-axis and it does not have any roots. Imaginary solutions always come in pairs, and since the exponent degree of x is 2, there are 2 solutions to the problem. You can find the imaginary solutions by plugging the equation into the quadratic formula.

What is the formula for circumference? а a C = (pi) bo C = 2r с C = (pi) r2​

Answers

Answer:

2(pi)r=C

Step-by-step explanation:

Other Questions
For a gravitational field to be generated between two objects, what must be true?No other forces can be presentsThe two objects must be in contactOne object must be pure ironBoth objects must have mass 11. Helen yanks two buttons from a dress. Whose dress? Why does she do this?The miracle worker Why is government necessary? what causes depersonalization of a nueron membrain potential? A negative charge of -2 C and a positive charge of 5 C are separated by 84,752 m. What is the force between the two charges? 1. WHAT TWO RIVERS SURROUND MESOPOTAMIA?*10 pointsNILE RIVER AND INDUS RIVERDANUBE RIVER AND THE RHINE RIVERTIGRIS RIVER AND THE EUPHRATES RIVERPO RIVER AND THE MISSISSIPPI RIVER How to write and graph at least 10 on a number line? A crane drops a 0.25kg steel ball onto a steel plate. The ball's speeds just before impact and after are 5.0m/s and 4.7m/s, respectively. If the ball is in contact with the plate for 0.035s, what is the magnitude of the average force that the ball exerts on the plate during impact? What is judicial review?dont use the internet definition, please paraphrase Which one of these values can you always expect from persons of integrity?A. They put their work ahead of everything else in their livesB. They are early for every appointment, even if it an appointment is not important. C. They always follow the rules and never question rules they think might be wrong.D. They take responsibility for their actions, even when they make mistakes. E. They always agree with others and give in to their beliefs. What is the correct term for a leaf attached by a thin stem to its parent plant?sessilepetiolatedetiolatedpronate Grade my argumentative essay with rubric in the photo. Please be honest. Thank you and have a great day :) An electric filament lamp is connected to a power supply and switched on.The filament glows.Explain why the temperature of the filament rises initially and then stays constant. Ummm guysssss ...... sarita's father's age is 49 years his age is 4 years more than three times Sarita age find the present age of Sarita Which is the balanced chemical equation showing hydrogen peroxide (H2O2) decomposing into hydrogen (H2) and oxygen (O2)? Multiple Choice H2O2 H2 + O2 H2 + O2 H2O2 2 H2 + O2 2 H2O2 2 H2O2 2 H2 + O2 PrevQuestion 13 of 14 Total13 of 14Visit question mapNext Describe an experiment to show that pressure increases with the decrease in the area of surface The axon:A.) Is the ending point of the nerve impulse.B.) Sends neurotransmitters.C.) Is the main body of the nerve cell.D.) Receives neurotransmitters. Can someone help me with this question please Ill mark as brainliest. If a force of 50 pounds is directed 30 from the horizontal, what vector represents this force?