If f(0) = 2 sin 0 - cos 20, find f(pi/6)

Answers

Answer 1

Answer: 1/2

Step-by-step explanation:

f(Ф) = 2sin(Ф) - cos(2Ф)

f(pi/6) = 2sin(pi/6) - cos(pi/3)

Use the pi circle or a calculator

f(pi/6) = 2(1/2) - 1/2 = 1/2


Related Questions

Find an equation in point slope form for the line haveing the slope m=-3 and containing the point (6 7)

Answers

Answer:

7-y=-3(6-x)

Step-by-step explanation:

Point slope form:

[tex]y-y_{1} = m(x-x_{1} )[/tex]

Substitute y in for 7. Substitute x in for 6. Substitute m in for -3.

7-y=-3(6-x)

Find the perimeter of the rectangle. 11. 13 cm Area = 52 cm2​

Answers

Answer:

1352 cm

Step-by-step explanation:

Length (l) = 13 cm

Width (w) = 52 cm

Perimeter of the rectangle = 2(l + w) units

P = 2(13 + 8)

P = 2 (21)

P = 42

Thus, the perimeter of the rectangle is 42 cm.

Example 2: If a rectangle's length is 2x + 1 and its width is 2x – 1. If its area is 15 cm2, what are the rectangle's dimensions and what is its perimeter?

Solution:

We know that the dimensions of the rectangle in terms of x:

l = 2x + 1

w = 2x – 1

Since the area of a rectangle is given by:

A = l * w

We can substitute the expressions for length and width into the equation for area in order to determine the value of x.

A = l * w

15 = (2x + 1) (2x -1)

15 = 4x2 – 1

16 = 4x2

x = ±2

Note that the value of x must be positive and therefore in our case, the value of x is 2. And now we have:

l = 11 cm

w = 52 cm

Therefore, the dimensions are 5cm and 3cm.

Now, substituting these values in the formula for perimeter, we will get

P = 2l + 2w

P = 2(5)+2(3)

P = 10+6

P = 16 cm

PLS ANSWER!!!! i need help plsssssss

Answers

Answer:

Sorry dude, I don't know, but maybe someone else will come and answer!!!

Step-by-step explanation:

This is classwork and i don't understand it at all PLEASE HELP

Answers

Answer:

The independent variable is the number of cars

the band washes and the dependent is the number of money they earn

Step-by-step explanation:

Hi! Short math question

Answers

It will be 2.9 or 9.7

Which of the following has no effect on the monthly payment?
A. Length of buyer's driving record
B. Numbers of months the car is expected to be financed
C. Down payment
D. Interest rate

Answers

Answer:

length of buyers driving record

Step-by-step explanation:

it just is because the driving record has nothing to do with monthly payments

how to Evaluate the expression, given functions f and g: f(x) = 3x - 2, g(x) = 7 – x^2. 3f(1) – 2g(-2)​

Answers

3x that answers end of the yearrr

What is the answer for (1-2g + 4h)•5?

Answers

Answer:

-10g +24 + 5 hope this helps

Step-by-step explanation:

1-2g+20h

You have to cancel out the factors

3/8 + 1/4 = Tap on the pic to see wiestion

Answers

Answer:

3/8 + 1/4 is 5/8 and 1/10+4/5 is 1

Step-by-step explanation:

convert 1/4 to 2/8 and add to 3/8 to get 5/8

convert 4/5 to 9/10 and add to 1/10 equals 10/10 which is also 1

Answer:

9/10 (and 5/8 for question in title)

Step-by-step explanation:

To add fractions, you need to make a common denominator, which you can have a common denominator of 10.

To do this, multiply the numerator (4) and the denominator (5) by 2. You will get 8/10.

Now you can add them together: 8/10 + 1/10 = 9/10

I don't know if you wanted the question in the title answered too so here:

Same thing; common denominator. Use 8. Multiply 1 by 2 and 4 by 2. You get 2/8.

Add: 3/8 + 2/8 = 5/8

describe the transformations needed to translate the graph y=1/x to the graph of y=1/x+3 -4

Answers

i cant describe but i put y=1/x+3 -4 on the graph hope this helps

Answer:

to the left 3 and down 4

Step-by-step explanation:

Suppose f(x)=x+2. Find the graph of f(1/3x)

Answers

Answer:

f(x)=x+2.

f(1/3x)=1/3 x+2=(x+6)/3or x/3+2

Answer:

graph 3

Step-by-step explanation:

Is $20.29 with $4 dollar shipping more, or is $23.09 with 3 dollar shipping more? Help please, ASAP! :(

Answers

Answer:

23.09 w/ 3 dollar shipping is more.

Step-by-step explanation:

20.29 + 4 = 24.29

23.09 + 3 = 26.09

hope this helps :)

Answer:

23.09 dollars and 3 dollar shipping is more than 20.29 with 4 dollar shipping

Step-by-step explanation:

if you add the shipping and price together 23.09 dollars and 3 dollar shipping is 26.09 in total

And the 20.29 with 4 dollar shipping is 24.29 in total

and 26.09 is greater than 24.29, so 23.09 dollars and 3 dollar shipping is more than 20.29 with 4 dollar shipping

what is the mystery number 1,2,4,8,16,32

Answers

Answer:

64

2×32=64............

Find the equation of a line which has:
slope of -2 and
crosses the y-axis at 5

in slope-intercept form

Answers

Answer:

y = -2x + 5

Step-by-step explanation:

Recall that slope-intercept form is y = mx + b where m is the slope and b is the y intercept

In this case our slope is m = -2

and, line crosses y-axis at 5 which is b = 5

thus, y = -2x + 5

On Monday, 475 people visited the museum. On Saturday, there were 4 times as many visitors as there was on Monday. How many people visited the museum on both days combined?

Answers

Answer:

2,375 people

Step-by-step explanation:

Hope this helps!! <3

James bought a PS5 game. The original price was $90, but it
was on sale for 30% off. What was the sale price?
Please help!!

Answers

Answer:

The correct answer is 27

Step-by-step explanation:

i took the test and its right please amrk brainliest i need it ;c

Answer:

63

Step-by-step explanation:

That's a cheap PS5.

1. A circular pond has a circumference of about C feet. The diameter of the pond is 7 feet. Which expression best
represents the value of p/?

Answers

Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences. Identify the relative location of the Mediterranean climate region in Europe. What are the three main characteristics of this climate region? Describe the plants and animals that are located in its ecosystem. Write your answer in complete sentences.

Answer:

i dont get it

t

Step-by-step explanation:

i

are 4/5 and 1/2 equivalent explain

Answers

Answer:

They are not

Step-by-step explanation:

4/5 cannot be simplified, plus 1/2 indicates half of a fraction but 4/5 is not half if a fraction, therefore they are not equivalent.

Liam opened a savings account with a $400 deposit and a simple interest rate of 7.5%. If the balance of the account is now $670 and there are no deposits or withdraws, how long ago did he open the account?

Answers

Answer:

If he deposited weekly, he would be depositing 9 dollars each week.

Step-by-step explanation:

Just thank me later and click the crown at the top of this answer if it helped ;)

Twenty out of twenty-five students wore red shirts to school on the same day. What is another way to write twenty out of twenty-five?

Answers

Answer:

20/25

Step-by-step explanation:

its is another way to write it

You jog 3 kilometers in 12 minutes.

At this rate, how long will it take you to complete a 7-kilometer race?

Answers

12/3 = 4 minutes
4 minutes per kilometre
4x7=28
28 minutes

Answer:

It will take 28 minutes to complete a 7-kilometer race

Step-by-step explanation:

If you can job 3 kilometers in 12 minutes, that means you can jog 1 kilometer in 4 minutes. so if you multiply 7 times 4, you would get 28. So your answer is 28 minutes.

What is the value of -x squared -4x-11 if x=-3

Answers

Answer:

-32

Step-by-step explanation:

assuming you meant -x^2 - 4x -11

x=3 so sub 3 in place of x

- 3^2 - 4*3 - 11 = -9-12-11 =- 32

9 1/4 - 3/4 =
6 4/9 - 3 11/12 =
3 11/15 - 1 5/6 =
4 5/14 - 3 17/21 ​

Answers

Answer:

8 1/2

2 19/36

1 9/10

23/42

Calculate the range and the mean of:
14, 8, 32, 8, 6, 4​

Answers

Answer:

Range: 28

Mean: 12

Step-by-step explanation:

First line the numbers from small to big: 4, 6, 8, 8, 14, 32

Range is biggest minus smallest number

Mean is just the average: all the numbers' sum divided by the number of numbers

Hope this helps! ;)

To get the mean you add up the numbers and divide it by how many numbers there are so:
14+8+32+8+6+4 = 72
72/6 = 12
Therefore the mean is 12

To get the range, you do the highest number minus the lowest number so:
32-4 = 28
Therefore the range is 28 as that is the difference between the highest and lowest number

-20 greater than or equal to 5w

Hurry!!!

Answers

w = -4 or more because -4 times 5 equals -20.

10. If log10x = 1 + a and log10y = 1 – a, show that xy = 100.
How?

Answers

Step-by-step explanation:

log x = 1 + a

a = log x - 1

log y = 1 - a

a = 1 - log y

So

log x - 1 = 1 - log y

log x + log y = 2

log (xy) = 2

xy = 100

I need help with both of these plss

Answers

Answer:

3. All you did was switch the numbers, so it will still equal the same :)

4. 8a and the other 8a cancel each other out, so since 8 has no variables, it ends up by itself.

HELP ASAP PLSSSSSSSSSSSSSSS​

Answers

Answer:

a. 5ab                  b. 11x+15y

Answer:

a. 5ab

b. 11x+5y

Step-by-step explanation:

12ab-7ab they have the same variables, so you can just subtract

19x+5y-8x just rearrange it to 19x-8x+5y and subtract 19x and 8x

Help plz dis is a lil importatnete

Answers

Following order of operations:

3^2 = 9

(10-2) = 8

Now you have :

9 + 8 x 5 -4

Multiplication is next:

9 + 40 -4

Now just add and subtract from left to right:

9 + 40 = 49

49-4 = 45

The answer is 45

Step-by-step explanation:

So first you solve whats inside of the parenthesis 10 -2 aand get 8 then you figure 3^2 which is 9 then multiplie 8 times 5 and get 40. 9 + 40 - 4 is what it is so far then add 9 to 40 which is 49 then subtract 4 and get 45!

whats an inverse relationship?

Answers

Answer:

relationship between two variables such that when the value of one variable is high then the value of the other variable is probably low

Step-by-step explanation:

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