using half angle identities what is the exact value of sin(9pi/8)

Answers

Answer 1

Step-by-step explanation:

first you put it in degree mode by multiplying 9pi/8 by pi/180.


Related Questions

barb exercises for 22 hours each week. how many hours does she exercise in 14 weeks. use the array drawn on the grid go help multiply ​

Answers

Answer:

Step-by-step explanation:

22 times 14 is 308, so 308 hours in 14 weeks.

Priya, Han, Lin, and Diego are all on a camping trip with their families. The first morning, Priya and Han make oatmeal for the group. The instructions for a large batch say, “Bring 15 cups of water to a boil, and then add 6 cups of oats.”

Priya says, “The ratio of the cups of oats to the cups of water is
6:15
. That’s 0.4 cups of oats per cup of water.”



Han says, “The ratio of the cups of water to the cups of oats is
15:6
. That’s 2.5 cups of water per cup of oats.”

Who is correct? Explain your reasoning. If you get stuck, consider using the table.

Answers

Answer:

Han is because the cups of water is 15 ad oat is 6.

Step-by-step explanation:

Answer:

Han is correct

Step-by-step explanation:

(a movie rental website charges $5.00 per month for membership and $1.25 per movie)

25. Marissa has $18.50 this month to spend on movie rentals

A. how many movies can she view this month

b. Marisa thinks she can afford 11 movies in one month. What mistake could she be making

Pls help me have mean math teacher ;((

Answers

Answer:

a.)she can view 10 movies. b.) One mistake she could be making is that she isn't adding the website fee to her total.

Step-by-step explanation:

2(5r - 5) + 8(5r - 1)
A) 4 - 311 - 49^2
B) 34r – 6 + 28r^2
C) 26r - 6 + 287^2
D) 50r - 18

Answers

Answer:

The answer is 50r-18

Step-by-step explanation:

2(5r-5) +8(5r-1)=2 x 5r/2 x -5 + 8x 5r/8 x -1

=10r-10+40r-8

=10r+40r-10-8

=50r-18

Write a 5 digit number so that when you round to the nearest tenth, your answer is 25.9

Answers

25.912 is an example of a number that fits this requirement
This is your perfect answer

1.44 /0.6 in long division

Answers

Answer:

The answer is 2.4

Step-by-step explanation:

because I division 1.44/0.6 its gave me 2.4

PLEASEEEEE HELP!!!! 15 POINTS AND DONT PUT SOMETHING RANDOM ITS DUE SOON!!

Answers

Answer:

third option

triangle TSU=LMN

Answer:

[tex] \triangle TSU \: \cong\: \triangle LMN[/tex]

Step-by-step explanation:

[tex] In\: \triangle TSU \: \&\: \triangle LMN\\\\

TS \cong LM\\\\

SU\cong MN\\\\

UT\cong NL\\\\

\therefore \triangle TSU \: \cong\: \triangle LMN\\(By\: SSS \: Postulate) [/tex]

(Ill give brainliest if ya help meee!! ;-;)

Which equation has a value less than 2,175?

A) 1 x 2,175 = ________

B)2 x 2,175 = ________

C) two halves x 2,175 = ________

D)one half x 2,175 = ________

Answers

Answer:

D

Step-by-step explanation:

1/2*almost anything except 1 and 0 is pretty much just dividing by 2

It's D.

1/2 x 2175 = 2175/2

2175/2 = 1087.5

At a local high school, 30% of the students are on a school sports team, 25% take at least one Advanced Placement (AP) class, and
10% are on a sports team and take at least one AP class. If a student was randomly selected from this school, what is the
probability that the student is on a sports team or takes at least one AP class?

Plz hurryyyy

Answers

0.45 will be  the probability that the student is on a sports team or takes at least one AP class

What is probability?

Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.

Given, At a local high school, 30% of the students are on a school sports team, 25% take at least one Advanced Placement (AP) class,

So,

Probability of Getting a student from a sports TeamP(A) = 0.3

Probability of Getting a student from an AP class P(B)= 0.25

Since 10% are on a sports team and take at least one AP class.

P(A ∩ B ) = 0.10

Thus,

P(A∪B) = P(A)  + P(B) - P(A ∩ B )

P(A∪B) = 0.30  + 0.25 - 0.10

P(A∪B) = 0.45

therefore,  the probability that the student is on a sports team or takes at least one AP class will be 0.45.

Learn more about probability here:

https://brainly.com/question/30034780

#SPJ1

hellllp meeeeeeee plzzzz​

Answers

Answer: 75 68 28 77

Step-by-step explanation:

make circle

make 4 parts in the circle

make one 75 degrees

another one 68

another one 28

and last one 77

Jeff ordered 5 pizzas for his daughters birthday
party. Each pizza has 8 slices. At the party, 50%
of the pizzas were eaten. When the party was
over, Jeff ate 20% of what was left. How many
did Jeff eat?

Answers

Answer:8 peices hopefully its right

Step-by-step explanation:

Una poblacion es atacada por una epidemia de gripe sea N(t)= numero de personas enfermas al tiempo t. En dias la epidemia inicio en N(0)= 50. Un matematico determina que la gripe se extiende a razón de f'(t)= 120t- 3t^2 personas por día. Determina
a) La función original que describe el comportamiento de la epidemia. (Aplica los mismos pasos explicados anteriormente.




b) ¿Cuántos enfermos habrán después de 15 días si no se controla la epidemia?

Answers

Answer:

Habrán 10175 enfermos a los 15 dias.

Step-by-step explanation:

La tasa de cambio de la población enferma por la epidemia de gripe es:

[tex]N'(t)=120t-3t^2[/tex]

Donde t es el tiempo en dias, y se sabe que la epidemia inició en N(0)=50.

a)

Para encontrar la función original que describe el comportamiento de la epidemia, debemos integrar la función:

[tex]N(t)=\int N'(t)dt[/tex]

[tex]N(t)=\int (120t-3t^2)dt[/tex]

Integrando:

[tex]\displaystyle N(t)=120\frac{t^2}{2}-3\frac{t^3}{3}+C[/tex]

Simplificando:

[tex]\displaystyle N(t)=60t^2-t^3+C[/tex]

Para determinar el valor de C, usamos la condición inicial N(0)=50:

[tex]\displaystyle 50=60(0)^2-(0)^3+C[/tex]

Se tiene que C=50, y la función queda determinada como:

[tex]\displaystyle N(t)=60t^2-t^3+50[/tex]

b) El número de enfermos a los t=15 dias se determina substituyendo el valor en la función original:

[tex]\displaystyle N(15)=60(15)^2-(15)^3+50[/tex]

Calculando:

[tex]N(15)=13500-3375+50=10175[/tex]

Habrán 10175 enfermos a los 15 dias.

A 16 ounce box of cereal costs $4.00. How many cents per ounce does cereal cost?

Answers

Answer:

25cents/ounce

Step-by-step explanation:

Given parameters:

Ounce of cereal box = 16ounces

Cost  = $4

Unknown:

cents per ounce  = ?

Solution:

To solve this problem;

 Convert the dollar bill to cents

       $1  = 100cents

       $4 will give us 4 x 100  = 400cents

Cost in cents per ounce= [tex]\frac{400}{16}[/tex]   = 25cents/ounce

Answer:

what he said

Step-by-step explanation:

Order the set of integers from least to greatest.

0, 100, 50, -150

On a number line, the number furthest to the right has the ________ value.


If you are given any two numbers. Is the GCF or the LCM of those numbers which will be greater?


List a pair of numbers that will have 20 as thier LCM


Answers

Answer:Hi

Step-by-step explanation: like this comment for good luck

Evaluate the expression when c=-6

Answers

Answer:

Hi how are you

Step-by-step explanation:

Have a nice day

Who to Convert 13/4 to a mixed numeral.

Answers

Answer:

3 1/4

Step-by-step explanation:

If correct please give me brainliest. :)    :)

help? ik im dumb but i need good grades and i can risk getting anything wrong

Answers

85.104 is the answer

5n(-7n)+6
How do you solve this

Answers

Multiply 5n and -7n
-35n + 6

Answer:

-35n+6

Step-by-step explanation:

5n(-7n)+6

Okay so there is a term in front of another term in parentheses

This let's us know that we are going to distribute (multiply)

5n × -7n = -35n^2

The reason it's -35 it's because a positive times a negative is a negative

the reason it's n^2 it's because n × n = n^2

Now we can't forget the positive 6!

-35n + 6 is your answer

The reason we don't add the 6 to the -35n is because they are not like terms so therefore we cannot do anything further

The 6 does not have an n attached to it so we leave as it it

jay has an album that holds 900 photos. Each page of the album holds 9 photos. If 67 ​% of the album is​ empty, how many pages are filled with photos​?

Answers

The answer is 24 I thibk lol

Is my answer correct or incorrect? True or false

Answers

Answer:

Youre correct

Step-by-step explanation:

Answer:

it is true

Step-by-step explanation:

What do you call that property in division when you divide
12÷ 2 = 6

Answers

Answer: There is no property for that equation but it is called Standard Divison.

Step-by-step explanation:

To find 12/2=6 is by splitting 12 into to groups and you got your answer.

HELP ME HELP

PLZ

PLZ

PLZ

Answers

Answer: 3, 2, 1, 0, -1

Step-by-step explanation:

3, 2, 1, 0, -1

solve the system

y=3x^2+3x-5

2x-y=3​

Answers

y=3x^2+3x-5. and 2x-y=3
x=-.8 so y=4.6
1. You can’t solve that
2. solve for x:
2x=3+y
x=3+y/2

solve for y
-y=3-2x
y=-3+2x
y=2x-3

The average body burns 120 calories (y) every 8 minutes (x) of jumping rope. Which equation best represents the number of calories burned, y, when x number of minutes have passed?

Answers

Answer:

y=15x

Step-by-step explanation:

Solve this system of equations 2x+4y=-6 x=y-12

Answers

Answer:

Step-by-step explanation:

2(y-12) +4y = -6

2y -24 +4y = -6

6y -24 = -6

6y= -18

y = -3

x = -3 - 12

x = - 15

x = -15

y = -3

Answer:

x=-9, y=3

Step-by-step explanation:

2(-9)=-18     4(3)=12    -18+12=-6    so,    -6=-6, it is determined true

-9=3-12      3-12=-9      so,     -9=-9, it is determined true

Hope this helps! Have a nice day! Owa Owa!

PLEASE HELP!
I WILL MARK BRAINLIEST!!!

Answers

Answer:

x=159/8

Step-by-step explanation:

you are supposed to put all those numbers and x's together and combine like terms then subtract from 180 and then divide

what is the answer to 2(x + 6) =

Answers

Answer:

2x+12

Step-by-step explanation:

2*x=2x

2x6=12

2x+12

2x+12 is your final answer

what did they do wrong​

Answers

Add 4 they were supposed to subtract 4. The subtraction sign is actually represented as a negative 2x. I think..

The table below shows that the number of miles driven by Lily is directly proportional to the number of gallons she used. Gallons Used Miles Driven 37 754.8 47 958.8 50 1020 What is the constant of proportionality between the number of miles driven and the number of gallons used?​

Answers

Answer:

20.4

Step-by-step explanation:

Constant of proportionality, k, is given as [tex] \frac{y}{x} [/tex].

Given that number of miles driven by Lily is directly proportional to the number of gallons she used, therefore the constant of proportionality between the number of miles driven and the number of gallons used can be determined by using any given pair from the table of values.

Using, (50, 1020),

constant of proportionality (k) = [tex] \frac{1020}{50} = 20.4 [/tex].

The constant of proportionality is 20.4 miles per gallon.

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the slope of the line and b is the y intercept.

Let y represent the distance driven in miles for x galloons.

From the table, using the points (37, 754.8) and (50, 1020):

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-754.8=\frac{1020-754.8}{50-37}(x-37)\\\\y-754.8=20.4(x-37)\\\\y=20.4x[/tex]

Therefore the constant of proportionality is 20.4 miles per gallon.

Find out more at: https://brainly.com/question/13911928

Name 2 alternate exterior angles

Answers

Answer:

When two lines are crossed by another line (called the Transversal): Alternate Exterior Angles are a pair of angles on the outer side of each of those two lines but on opposite sides of the transversal. In this example, these are two pairs of Alternate Exterior Angles: a and h.

Step-by-step explanation:

Google

Other Questions
In lines 37-49, Thoreau describes walden as the answer isB. inspirational and mysterious (2011 applied practice) Help pls!13x - 14 = - 118- 13x = hey can somebody help y+5=2(x+1) Which statement best explains why running on a track with constant speed at 3m/s is not work but climbing a mountain at 1m/s is work?1. At constant speed, change in the kinetic energy is zero but climbing a mountain produces change in the potential energy2. At constant speed, change in the potential energy is zero, but climbing a mountain produces change in the kinetic energy.3. At constant speed, change in the kinetic energy is finite, but climbing a mountain produces no change in the potential energy.4. At constant speed, change in the potential energy is finite, but climbing a mountain produces no change in the kinetic energy. At time t=0 hours, a tank contains 3000 litres of water. Water leaks from the tank. At the end of every hour there is x% less water in the tank than at the start of the hour. The volume of water, in litres, in the tank at time t hours is Vt. Given that Vt=KtV0 V2=2881.2 work out the value of k and the value of x. 1. Two objects are separated by a distance of 1.60 m. One object has a mass of 75 kg and the other has a mass of 50 kg. What gravitational force exists between the two objects? One of Camilles graduation gifts is a trip on Amtrak from his home in Atlanta to New York to visit a cousin. Camille is afraid he may experience motion sickness so he has decided to take 50 mg of dimenhydrinate (which will help prevent motion sickness) before boarding Amtrak. Suppose that 85% of this medication remains in the bloodstream after 1 hour. Represent the amount of dimenhydrinate in Camilles bloodstream for the first 4 hours of taking the drug. Let t be the number of hours after reaching its peak level of 50 mg. Explain how you determined the amount of dimenhydrinate in Camilles bloodstream. This is a random questionIf a mother leaves her 11-year-old daughter home alone with her two other children who are 5 and 2 shouldn't the 11-year old have a phone just in case the mother is gone longer than said would be gone? Translate the word phrase into a math expression.12 meters longer than his throw.t12t 12t + 1212 tanswer right and get brainliest what activity makes water came to the surface? Many plants can grow in the littoral zone of a lake becausea. sunlight reaches its bottom.b. there are no algae.C. there are no animals.d. there is both salt water and fresh water. Jane needs $150 for the hot air balloon ride. She already has $45 and she can earn the rest by working 12 hours at her job. If h represents her hourly earnings, which of the following equations can be solved to findJane's hourly earnings? Circle two correct equations.150 = 12h12 = 150 - h150 = 45 + 12h150 + 45 = 12h150 = 12h + 45 Solve the equation for the given variable.A-(r+k/4 ) f for r 13. Which organelle is the site for the cellular process of photosynthesis?a. Nucleusb. Mitochondriac. Chloroplastd. Cytoplasm 2x < 16.................. sue has 18 sweets, tony also has 18 sweets, sue gives tony x sweets, sue eats 5 of her sweets, tony then eats half of his sweets. write an expression for the number of sweets sue and tony now have Brody had his computer repaired at Store A. His bill was:Initial Repair Cost = $1,200Sales Tax of 6 percent = $72.00Gratuity of 15 percentExplain how you would calculate the gratuity for the services provided. HELPPPPP Here the last question I give you 5 points what is the least common multiple of 10 and 27 Which type of work is an electrical engineer most likely to do?