sin (3x)cos(6x) - cos (3x) sin(6x)=-0.9

Answers

Answer 1

Answer:

x=21.38602241

Step-by-step explanation:

Given: sin(3x)cos(6x) - cos(3x)sin(6x) = -0.9

Rewrite as difference identity: sin(3x-6x)=-0.9

Combine like terms in parentheses: sin(-3x)=-0.9

Take the inverse sine of both sides: -3x=-64.15806724

Divide both sides by -3: x=21.38602241

Refer to the sheet to see all trigonometric identities

Sin (3x)cos(6x) - Cos (3x) Sin(6x)=-0.9
Answer 2

Answer:

Step-by-step explanation:

sin(3x)cos(6x)-cos(3x)sin (6x)=-0.9

sina cos b-cos asin b=sin(a-b)

sin(3x-6x)=-0.9

sin(-3x)=-0.9

-sin (3x)=-0.9

sin (3x)=0.9

3x=arcsin (0.9)≈64.16°,115.84°

3x=360n+64.16,360n+115.84

x=120 n+21.39°,120 n+38.61°


Related Questions

Is the proportion of the female population age 60 or older in country A greater than the proportion of the female proportion age 6 or older in country B

Answers

Answer:

Proportion of female older Than 60 in country A is not more than the proportion of female older Than 60 in country B.

Step-by-step explanation:

From. The plot given :

We could approximate the proportion of females older than 60 as follows _

COUNTRY A :

60 - 69 = 0.105

70 - 79 = 0.065

80 - 89 = 0.038

90+ = 0.01

Total = About 0.218

COUNTRY B :

60 - 69 = 0.14

70 - 79 = 0.11

80 - 89 = 0.07

90+ = 0.02

Total = About 0.34

From the estimated proportion, the proportion of females on country B is more than the proportion in country A.

what is the length of the hypotenuse,c ? 3m 5m

Answers

Answer:

square root of 34

Step-by-step explanation:

ok so S is for Squared

Cs= As+Bs

5s+3s= Cs

25+9=34

Cs=34

C= square root of 34

to get C we need to square root Cs

square root of 34

so C is 5.83

A map uses the scale of 3/4 of an inch to represent 3 miles. If the actual distance between two cities is 25 miles, then what is the length on the map? Report your answer to the hundredths place. *

Answers

Answer:

6.25 in

Step-by-step explanation:

25/3= 8.33

8.33*.75= 6.25

5 divided by 5+4 x 12

Answers

Answer: 49 is the answer

What is 113.1 rounded to the nearest hundredth

Answers

113.10

That question is so trippy that I find it quite stup.id

I honestly am not sure if my answer is correct. But that’s the value I would put in.

i have two big cats and one died how many do i have

Answers

Answer: 1 big cat?

Step-by-step explanation:

Answer:

1 fat one because the other one ate the one who died

Step-by-step explanation:

If the full problem adds up to 122 what is Y?

Answers

Answer: 12

Step-by-step explanation:

Answer:

35.8

Step-by-step explanation:

Triangle adds up to 360 degrees

5y+4y+3+y-1=360

10y+2=360

     -2   -2

10y=358

divided both sides by 1o

y=35.8

A professional soccer player can score a goal using his feet or his head. The table below shows how many goals a sample of players scored with different parts of their bodies in the 2014-2015 season (according to www.whoscored.com). .

Answers

Answer:2744 goals

Step-by-step explanation:

196 x 14 = 2744

196 goals per season for 14 seasons, just

Step-by-step explanation:

Answer:

These are the plotted points, as you can see I've gotten the answer correct on khan academy.

Step-by-step explanation:

How many different committees of size 4 can be formed from 13 people?

Answers

Answer: 3.

Step-by-step explanation:

hope this helps

The Dirk family tips their newspaper carrier for delivering the newspaper. They tip 10% of what they pay for the subscription. They paid $20 in tips for the entire year. How much does their newspaper subscription cost a year?​

Answers

Answer:

38

Step-by-step explanation:

90 percent of 20 = 18

18+20

= 38

Fast I need help do t understand !!!!!

Answers

Answer:

....................21 .....................

Answer: 21, hope it helps

Y=190(1.471)^x determine the percentage of increase or decrease

Answers

Given:

The exponential function is:

[tex]y=190(1.471)^x[/tex]

To find:

The percentage of increase or decrease.

Solution:

The general exponential function is:

[tex]y=a(1+r)^x[/tex]                   ...(i)

Where, a is the initial value,t is the time period, r is the rate of increase if [tex]r>0[/tex] and r is the rate of decrease if [tex]r<0[/tex].

We have,

[tex]y=190(1.471)^x[/tex]

It can be written as:

[tex]y=190(1+0.471)^x[/tex]         ...(ii)

On comparing (i) and (ii), we get

[tex]r=0.471[/tex]

Since [tex]r>0[/tex], therefore the given function is an increasing function.

[tex]r\%=0.471\times 100[/tex]

[tex]r\%=47.1\%[/tex]

Therefore, the percentage of increase is 47.1%.

what is the sum? Complete the equation.
I'm giving 25 points for this one
link is below

Answers

Answer:

-1

Step-by-step explanation:

its pretty easy ngl but yeah stack it

EXIT TICKET EXIT TICKET QUESTION 1: Cheri paid $6.50 for the bunch of grapes with the weight 2 pounds on the scale. What was the price per pound?​

Answers

Answer:

3.25 per pound

Step-by-step explanation:

If 2 pounds = 6.50

then 1 pound = ?

Divide 6.50 and 2. You will get 3.25

so that is why the answer is 3.25 per pound.

have An amazing day!

PLS HELP FOR BRAINLIEST!

Find the measure of

Answers

Answer: 22.5

Step-by-step explain:

225/10=22.5

For each expression, write an equivalent expression that uses only addition: a. 20 - 9 + 8 - 7 b. 4x - 7y - 5z + 6 c. -3x - 8y - 4 - 8/7z

Answers

Answer:

a. =11+ 1

b. =4x+ (-7y) + (-5z) +6

c. (-3x) + (-8y) +(-4)+(-8/7z)

Step-by-step explanation:

a. 20 - 9 + 8 -7

=11+ 1  ( this is obtained by solving)

b. 4x - 7y - 5z + 6

=4x+ (-7y) + (-5z) +6

We multiply the negative sign with the positive sign to get a minus so the answer remains the same and the expression is written as an addition sum.

c. -3x - 8y - 4 - 8/7z

-[ 3x+8y+4+8/7z]

or

(-3x) + (-8y) +(-4) +(-8/7z)

The minus sign is taken as common leaving the expression with the plus only.

It can be written in the same manner as above, adding the negative terms so that the expression is written as a sum.

The expressions are a sum after the negative sign is marked with the terms. It shows that the negative terms are being added.

What else do I do?

(btw I'm The one with the black and white pfp!

Answers

Answer:

if u don't want them to have your insta/snap, tell them that you don't like sharing them. I just wouldn't respond after that

If they are bothering you say "Thank you for being nice to me, I am going to say this in the most the nicest way possible, but you're kind of bothering me right now. If you keep messaging me/ bothering me I'm going to have to block you" or you could say "Please stop asking me for my insta/snap if you keep asking me I am going to have to block you. Thank you have a nice day :)"

you could say something like that

What is the measure of ZB?
A
34
B
[?] degrees
Enter

Answers

Answer:

Angle b=56

Step-by-step explanation:

180-34-90=56


Question 1 and 2

Find the largest side of the triangle

No links Please !!!

Answers

Answer:

for the first problem the largest side of the triangle is the letter C

for number 2 the largest side of the triangle is the letter B

Step-by-step explanation:

Vendí por 30€ a la cual le había incrementado el 12% una prenda de ropa. Calcula el precio de la prenda antes del incremento.

Answers

Answer:

18€

Step-by-step explanation:

Given data

Selling price= €30

increase= 12%

Cost price= ???

We know that

% increase= selling price- cost price/cost price*100

let the cost price be x

12= 30- x/x*100

cross multiply

12*100= (30- x)100

1200= 3000-100x

1200-3000=-100x

-1800=-100x

x= 1800/100

x= 18

Hence the price before the increase is 18€

help anyone?
you dont have to i just want to do this fast

Answers

Answer:

Step-by-step explanation:

I'm thinking cu

What is the equation in slope-intercept form of the line that crosses the x-axis at 21 and is perpendicular to the line represented by y = 7/2x-13

Answers

Given:

A line is perpendicular to the line [tex]y=\dfrac{7}{2}x-13[/tex].

The line passes through the x-axis at 21.

To find:

The equation of the line in slope intercept form.

Solution:

The slope intercept form of a line is:

[tex]y=mx+b[/tex]

Where, m is the slope and b is the y-intercept.

The given line is:

[tex]y=\dfrac{7}{2}x-13[/tex]

So, the slope of this line is [tex]\dfrac{7}{2}[/tex].

The product of slopes of two perpendicular lines is -1.

Let m be the slope of required line. Then the slope of the required line is:

[tex]m\times \dfrac{7}{2}=-1[/tex]

[tex]m=-\dfrac{2}{7}[/tex]

The line passes through the x-axis at 21. It means the line passes through the point (21,0). So, the equation of the line is:

[tex]y-y_1=m(x-x_1)[/tex]

[tex]y-0=-\dfrac{2}{7}(x-21)[/tex]

[tex]y=-\dfrac{2}{7}(x)-\dfrac{2}{7}(-21)[/tex]

[tex]y=-\dfrac{2}{7}x+6[/tex]

Therefore, the equation of the required line is [tex]y=-\dfrac{2}{7}x+6[/tex].

ASAP

AND HOW DID YOU GET THE ANSWER

( WILL MARK BRIANIST)

Answers

Answer: 11/24

Convert 3/8 to 9/24

Convert 1/12 to 2/24

Add them together to get 11/24

If I did a poor job explaining I can help more in the comments.

Answer:

Hi, there the answer is 11/24

Step-by-step explanation:

9/24+2/24  

9+2/24

11/24

If you didn't understand here's something you can understand I felt like I didn't understand what I wrote on the top

Find the Least Common Multiple

[tex]\frac{3}{8} +\frac{1}{12}[/tex]

[tex]\frac{9}{24} +\frac{2}{24}[/tex]

[tex]\frac{9+2}{24}[/tex]

[tex]\frac{11}{24}[/tex]

For a field trip. 26 students rode in cars
and the rest filled up 6 buses. How
many students were in each bus if no
more than 290 students went on the
trip? Write an inequality to find x, the
number of students on each bus.

Answers

Answer:

x+26=290

x=290-26

x=264

264÷6=44

The national interest rate for savings accounts is 0.04%. I put $2,000 in my savings account for 40 years. How much interest will I earn?

Answers

Answer: $32.25

Step-by-step explanation:

Assuming this is compound interest, the value of the investment after a period of time can be calculated with the future value formula:

Value = Investment * ( 1 + rate) ^ no. of periods

Value ₄₀ = 2,000 * ( 1 + 0.04%)⁴⁰

Value ₄₀ = $2,032.25

Interest earned = Value at 40 years - Initial investment

= 2,032.25 - 2,000

= $32.25

find the value of x. (picture)

Answers

Answer:

x = 23

Step-by-step explanation:

Remember, angles in a triangle add up to equal 180

That being said we can create an equation to solve for x

180 = 110 + 35 + x + 12

now we solve for x

step 1: combine like terms

110 + 35 + 12 = 157

now we have 180 = 157 + x

step 2 subtract 157 from each side

180 - 157 = 23

157  - 157 cancels out

we're left with x = 23

find the length segment of XZ if the line segment of YU=30 and segment XU=50

Answers

Answer:

Step-by-step explanation:

xy=xu-yu

50-30=20

xy = 20     xu=50     yu=30      xz =?

xy/yu = xz/zu

20/30 =

i think the question needs more information u have to send the photo

it should be like this

Which of the following sets of numbers could not represent the three sides of a right
triangle?
{20, 48,52}
{40, 75, 85}
{14, 47,50}
{13, 84, 85}

Answers

Answer:

{14, 47, 50}

Step-by-step explanation:

The three sides of a right triangle must satisfy

a² + b² = c², known as the Pythagorean Theorem. So let's put the pairs into the theorem.

20, 48, 52

a² + b² = c²

20² + 48² = 52²

400 + 2304 = 2704

2704 = 2704

20, 48, and 52 represent the three sides of a right triangle.

40, 75, 85

a² + b² = c²

40² + 75² = 85²

1600 + 5625 = 7225

7225 = 7225

40, 75, and 85 represent the three sides of a right triangle.

14, 47, 50

a² + b² = c²

14² + 47² = 50²

196 + 2209 = 2500

2405 ≠ 2500

14, 47, and 50 do NOT represent the three sides of a right triangle.

13, 84, 85

a² + b² = c²

13² + 84² = 85²

169 + 7056 = 7225

7225 = 7225

13, 84, and 85 represent the sides of a right triangle.

14, 47, and 50 do NOT represent the three sides of a right triangle, therefore making it your answer.

1. In mathematics, the Pythagorean Theorem, or Pythagoras's Theorem, is a fundamental relation in Euclidean geometry among the three sides of any triangle. true or false.

Answers

Answer:

In mathematics, the Pythagorean Theorem, or Pythagoras's Theorem, is a fundamental relation in Euclidean geometry among the three sides of any triangle.True

solve for 6xsquare-x-2<0​

Answers

Answer:

-x-2<0-x=2x= -2

hope it helps.

Answer:

[tex]\frac{-1}{2} <x<\frac{2}{3}[/tex]

Step-by-step explanation:

6x² - x - 2 < 0

6x² - 4x + 3x - 2 < 0

(6x² - 4x) + (3x - 2) < 0

2x(3x - 2) + (3x - 2) < 0

(3x - 2)(2x + 1) < 0

[tex]\left \{ {{3x - 2<0} \atop {2x + 1>0}} \right.[/tex]

[tex]\left \{ {{3x<2} \atop {2x>-1}} \right.[/tex]

[tex]\left \{ {{x<\frac{2}{3} } \atop {x>\frac{-1}{2} }} \right.[/tex]

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