solve each equation for 0≤x≤360
cos(x+45°)+cos(x-45°)= √2

Solve Each Equation For 0x360cos(x+45)+cos(x-45)= 2

Answers

Answer 1

Answer:

360°

Step-by-step explanation:

We want to solve the equation,

[tex] \cos(x + 45) + \cos(x - 45) = \sqrt{2} [/tex]

We expand using trigonometric identities to get;

[tex]\cos(x) \cos( 45) - \sin(x) \sin(45) + \cos(x) \cos( 45) + \sin(x) \sin(45) = \sqrt{2} [/tex]

[tex] \frac{ \sqrt{2} }{2} \cos(x) - \frac{ \sqrt{2} }{2} \sin(x) + \frac{ \sqrt{2} }{2} \cos(x) + \frac{ \sqrt{2} }{2} \sin(x) = \sqrt{2} [/tex]

Simplify;

[tex] \cos(x) - \sin(x) + \cos(x) + \sin(x) = 2[/tex]

Simplify;

[tex]\cos(x) + \cos(x) = 2[/tex]

Add

[tex]2\cos(x) = 2[/tex]

Divide by 2

[tex]\cos(x) = 1[/tex]

Take cosine inverse;

In the

[tex]x = \cos^{ - 1} ( 1) =0\degree [/tex]

Also in the 3rd quadrant cosine ratio is positive.

[tex]x = 360-0= 360 \degree[/tex]


Related Questions

Which expressions are equivalent to -6+3(2+(-4t))?
Choose all answers that apply:

(Choice A)
A
-12t

(Choice B)
B
12t-12

(Choice C)
C
None of the above

Answers

Answer:

I belive that choice A would be the best answer!

Step-by-step explanation:

Please help me I’m just learning this

Answers

Answer:

64 cm^2

Step-by-step explanation:

Area of Shaded Region = Area of Parallelogram - Area of Rectangle

Area of Parallelogram = 10 * 7 = 70

Area of Rectangle = 2 * 3 = 6

70 - 6 = 64 cm^2

A circle with area 16pi has a sector with a central angle of 8/5pi radians. What is the area of the sector?

Answers

Answer:

The area of the sector is [tex]12.8\pi\ units^2[/tex]

Step-by-step explanation:

we know that

The area of a complete circle (16π units^2) subtends a central angle of 2π radians

so

using proportion

Find out the area of a sector , if the central angle is equal to 8π/5 radians

[tex]\frac{16\pi}{2\pi}=\frac{x}{(8\pi/5)}\\\\x=8(8\pi/5)\\\\x= 12.8\pi\ units^2[/tex]

Answer: 12.8pie

Step-by-step explanation:

Miguel has a toolbox that measures 18.5 inches by 12.5 inches by 4 inches. What is the volume of the toolbox

Answers

Answer:

It would be 925 inches cubed.

Step-by-step explanation:

To find the volume, know that to find the volume of any rectangular prism (which is what this is) is to do Length * Width * Height to get the volume.

By doing, 18.5 * 12.5 * 4, you'll get your answer.

18.5 * 12.5 * 4 ---> 925

Remember to make in the unit of inches (because that's the unit it was asked in) and to write cubed at the end (since you are finding the area of a 3d object).

Please help me ASAP 16 points

Answers

flour: 60

milk: 2.5

i calculated i hope its the right Answer

log (x) + log (x + 5) = log (6 x + 12)

I need the answer asap

Answers

It’s b I had it in my test

Answer: 12 i believe sorry if im wrong

which expression is equivalent to 3x/5
a: 15x/20
b: 12x/20
c: 12x/5

Answers

Answer: 12x/20

Step-by-step explanation:

Looking at 3x/5

The expression equivalent is 12x/20

The reason is this

12x/20

If you divide the 12x by 4

It will give you 3x

If you divide 20 by 4

It will give you 5

Therefore, you will still have 3x/5

Another way to look at it is this

3x/5= 0.6x

12x/20= 0.6x

Therefore, the final answer is b which is 12x/20

-20a -8 + 12b is ? what is the answer?

Answers

Answer:

4(-5a + 3b - 2)

Step-by-step explanation:

Aside from changing the order of the terms so that the "a" term comes first and the "b" term second, there's nothing you can do with this expression -20a -8 + 12b.  But notice that 4 is a factor common to all three terms, and therefore it can be factored out:

Rearranging the terms, we get

-20a + 12b - 8  =  4(-5a + 3b - 2)

Answer:

The answer is -4(5a+2-3b)

Step-by-step explanation:

Find the GCF and then multiply

Rafael spins the pointers of the two spinners shown at the right. Find the probability of each possible sum.

Answers

Answer:

P(sum 2)=1/6

P(sum 3)=1/3

P(sum 4)=1/3

P(sum 5)=1/6

Step-by-step explanation:

[tex]\left|\begin{array}{c|ccc}&1&2&3\\---&---&---&----\\1&2&3&4\\2&3&4&5\end{array}\right|[/tex]

On the table, there are a  a total of 6 outcomes.

Number of sum that equals 2=1Number of sum that equals 3=2Number of sum that equals 4=2Number of sum that equals 5=1

Therefore:

P(sum 2)=1/6

P(sum 3)=2/6=1/3

P(sum 4)=2/6=1/3

P(sum 5)=1/6

solve the equation for x 2x+34=4(x+5)​

Answers

Answer:

7

Step-by-step explanation:

2x+34=4(x+5)

2x+34=4x+20

-2x=-14

x=7

Answer:

x=7

Step-by-step explanation:

Could anyone solve this?

Answers

Answer:

26.

Step-by-step explanation:

Hope this helps!

1. Compare subtracting 10/8 - 4/8 to subtracting 10-4. How are they alike? How

are they different?

Answers

1. 10/8-4/8= 3/4
2. 10-4= 6
The difference is the answers/solutions
Final answer:

The subtraction of 10/8 - 4/8 is similar to 10-4 only in the general subtraction process, but they differ in the types of numbers used (fractions vs. whole numbers) and the results generated (a fraction vs. a whole number).

Explanation:

The process of subtracting 10/8 - 4/8 is similar to subtracting 10-4 because in both cases, you are subtracting one number from another (~subtraction process~). However, they are different in terms of the kind of numbers used for subtraction. In the first operation, we are subtracting fractions while in the second operation, we are subtracting whole numbers.

To elaborate, in 10/8 - 4/8, they have the same denominators (8), so it's straightforward to subtract the numerators (numbers on top of the fraction): 10 - 4 = 6. So, the result is 6/8, which simplifies to 3/4.

In 10 - 4, the operation is simpler because we are working with whole numbers. By subtracting 4 from 10, we get 6 as the result. So, the results of the operations bear another difference, one yields a fraction, the other yields a whole number.

Learn more about Subtraction here:

https://brainly.com/question/20438352

#SPJ11

There are 5 red marbles, 4 blue marble, 2 green marbles, and 1 yellow marble in the bag. What is the probability of pulling out each of the following?

Answers

Answer:

Red : 5/12

Blue : 1/3

Green: 1/6

Yellow : 1/12

Step-by-step explanation:

5 red marbles + 4 blue marbles + 2 green marbles + 1 yellow marble = 12 total marbles

5 red marbles / 12 total marbles = 5/12

4 blue marbles / 12 total marbles = 4/12 = 1/3

2 green marbles / 12 total marbles = 2/12 = 1/6

1 yellow  marbles / 12 total marbles = 1/12

Pythagorean theorem (picture provided)

Answers

The answer is of option D.

Hope this will help u...:)

The answer is definitely D:)

Which of the following expressions is equivalent to the expression 2(7x+3)

A 9x+3
B. 14x +6
C. 9x-6
D. 14x-3

Answers

First you got to multiply 2x7=14x then multiply again 2x3=6 so the answer to the equation will be 2(7x+3)=(14x+6)
Final answer:

The formula 2(7x+3) can be translated into 14x +6 using the distributive property of multiplication over addition (Option B).

Explanation:

The expression 2(7x+3) is equivalent to the expression 14x+6. Such mathematical expressions are related to the concepts of algebra, specifically, the distributive property of multiplication over addition. This property allows the distribution of 2 over the terms inside the parentheses, 7x and 3 in this case. When we multiply 2 by 7, we get a result of 14, and when we multiply it by 3, we get a result of 6. So, option B: 14x + 6 is the correct response to this question.

Learn more about Distributive Property here:

https://brainly.com/question/37341329

#SPJ3

A proposed law before it is confirmed through the House, Senate and Presidential process is:
a committee
an amendment
a bill
a proposal

Answers

Answer:

A bill

Step-by-step explanation:

A bill becomes a law. Search up a bill becomes a law schoolhouse rock.

The answer is a bill

Cedric has 200 songs on his Apple Music account. Of these songs, 24 are Indie songs. What percent of Cedric's songs are Indie songs?

Answers

Answer:

12%

Step-by-step explanation:

First put it into a fraction 24/200

Half it to make it to 100%

12/100=100%

Final answer:

To find the percentage of Cedric's songs that are Indie songs, divide the number of Indie songs by the total number of songs and multiply by 100%. The percentage of Indie songs is 12%.

Explanation:

To find the percentage of Cedric's songs that are Indie songs, we need to divide the number of Indie songs by the total number of songs and then multiply by 100.

So, the percentage of Indie songs is calculated as:

Percentage of Indie songs = (Number of Indie songs / Total number of songs) * 100% = (24 / 200) * 100% = 12%.

What is the next term of the geometric sequence?
375, 75, 15,

Answers

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

The common ratio = 75/375 = 1/5

So the next term = 15* 1/5= 3

What is the slope of the line shown in the graph?
A 3/2
B 2/3
C -3/4
D - 2/3

Answers

Answer:

D. -2/3

Step-by-step explanation:

Since it is going down, it is negative

Think of this: Rise/Run

In this case, rise is when you are going up or down the graph

Run is when you are going to the right of the graph

Let's use 2 points (0,3) and (3,1)

Since you are going three points to the right we are going to put 3 in for run

You are going 2 places down, so we are going put -2 in for rise

This gives us -2/3

Another way to do this is (1-3)/(3-0) = -2/3

y=|x−3|+|x+2|−|x−5|, if 3

Answers

Answer: 3

Step-by-step explanation:

Y=|x-3|+|x+2|-|x-5|

X is given as 3

Substitute for x=3

Y=|3-3|+|3-2|-|3-5|

Y=0+1-(-2)

Y=0+1+2

Y=3

Answer:

Step-by-step explanation:

y=|3-3|+|3+2|-|3-5|

=0+5-2

=3

Line segment AB has a length of 5 units. It is translated 3 units to the right on a coordinate plane to obtain line segment . What is the length of ?

Answers

Answer:

5 units long because when you have a translation the length, size and shape of the segment doesn't change it's just moved over on the coordinate plane.

The variable y is directly proportional to the variable x. If y = 12 when x = 14, what is the value of x when y = 24?

Answers

Answer:

28

Step-by-step explanation:

Pleaseee help!!!!!!!

Answers

Answer:

[tex]y = 3000 - 18x[/tex]

3000 goes into the green box.

What is the missing statement in the proof?


∠FEG ≅ ∠HJG

∠GFE ≅ ∠GHJ

∠EGF ≅ ∠JGH

∠GEF ≅ ∠JHG

Answers

Answer:

∠GFE ≅ ∠GHJ

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

which number is a rational number?
√15
2.6457513110
17.156
^3√85

Answers

≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡⊕

Answer:

C. 17.156

Step-by-step explanation:

Im sure the answer is C.) 17.156

Rational Numbers: Any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions. ... So, any terminating decimal is a rational number...

Hope I helped!!!

Good luck deary... <3

≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡⊕

Simplify
Simplify Simplify

Answers

Step-by-step explanation:

Simplify: [(8)^2/3]^4

(a) 8^8/3

(b) 8^6/3

(c) 8^6/12

Solution:

[(8)^2/3]^4

use the rules of exponents to simplify the expression.

=> [(8)^2/3]^4

To raise a power to another power multiply the exponents.

=> (8)^2/3 × 4

Multiply 2/3 times 4.

=> (8)^8/3

Option (c) (8)^8/3 is your correct answer.

Another method:

Given,

[(8)^2/3]^4

=> [(8^3)^2/3]^4

=> [(2)^3×2/3]^4

=> [(2)^2]^4

=> (2)^2×4

=> (2)^8

=> 2^8

=> 2×2×2×2×2×2×2×2

=> 256 Ans.

Hope this helps!!

i really need help what would be the answer?

Answers

Answer:

x= −b^2a

Step-by-step explanation:

However, if this question is asking WHAT IS the axis of symmetry, then it would be 3

Answer:

x=[tex]-b^{2a}[/tex]

Step-by-step explanation:


Your help would be greatly appreciated

Answers

17% is the answer to the question

What is the area of the trapezoid?

Answers

Answer:

C) 100 m^2

Step-by-step explanation:

Area of a trapezoid= h*[(b1+b2)/2]

h=10

b1=8

b2=12

Therefore:

A=10*[(8+12)/2]

A=10*(20/2)

A=10*10

A=100

So the area of the trapezoid is 100 m^2

In OY, shown below, the radius is 34 units, AB = 60 units, and the measure of arc AC is 71 degrees.

Find each measure.​

Answers

Answer:

1. 71

2. 142

3. 30

4. 30

5. 16

6. 18

Other Questions
EXTRA POINTS!!!what did William Harvey do, how did he impact the world, what did he discover. I don't care, you can use google, i am just short on time! what is the position of the winds in July what is the naim idea of the world regional geography Which of the following statements regarding political socialization is true? a. Scholars believe that greater access to political information may explain why young Americans are more liberal than their parents on many social issues. b. Although more sources of political information have become readily available in recent decades to most Americans, these sources are not as readily available to most young people. c. Parents disaffected from the political system are more likely to provide political information to their children than parents who are not similarly disaffected. d. Sources of information about politics have been steadily decreasing in the United States for decades. e. The family has become the only meaningful source of political socialization in the United States. the tramp of feet (is, are) heardwhich one makes sense Carbohydrate metabolism is responsible for the formation, breakdown, and interconversion of carbohydrates in living organisms. The most important carbohydrate is glucose that is metabolized by all living cells in the first energy-yielding pathway known as glycolysis. True or false? Which of the following are examples of Reagans conservative economic policies?Check any of the boxes that apply.cutting school lunch programsreducing government regulationcutting defense spendingreducing funding for government agenciestightening environmental regulations The outer most layer of the interior Which of the following sentences uses adjectives correctly?A. According to the 2018 Legatum Prosperity Index, our country is one of the most countries prosperous in the world.B.The gaudy room had red and orange streamers strewn about the ceiling and tattered garments hanging on the walls.C.There has been a boom in construction recently with condominiums and houses new popping up everywhere in the area.D. Henrietta's jovial brought joy and cheerful to all of the sad and lonely residents at the retirement home. :) HistoryHow did the 54th Massachusetts help to shape or change public opinion irWilling to help fight to end the warActed to save the lives of soldiers in other unitsO Peacefully challenged prejudiced payO All of the above Tyrell Co. entered into the following transactions involving short-term liabilities. Year 1 Apr. 20 Purchased $38,000 of merchandise on credit from Locust, terms n/30. May 19 Replaced the April 20 account payable to Locust with a 90-day, 8%, $35,000 note payable along with paying $3,000 in cash. July 8 Borrowed $60,000 cash from NBR Bank by signing a 120-day, 11%, $60,000 note payable. __ In a poll of Mr. Briggs's math class, 67% of the students say that math is their favorite academic subject. The editor of the school paper is in the class, and he wants to write an article for the paper saying that math is the most popular subject at the school.A. Explain why this is not a valid conclusion B. Suggest a better method of determining what subject is most popular give the equation of the line goinng through (4, 6) and parallel to the line 2y-6x=4 farmer ed has 3000 meters of fencing and wants to enclose a rectangle plot that borders on a river. if farmer ed does not fence the side along the river what is the largest area that can be enclosed A rectangular pyramid has a volume of 1,512in3, a height of 12 in and a base length in f 21 in. What is the width of its base? Consider triangle PQR. What is the length of the side QR? A wire of length L is wound into a square coil with 117 turns and used in a generator that operates at 60.0 Hz and 120 V rms value in a 0.023-T magnetic field. What is the length L of the wire used to construct the coil? the artist search answers What is not a function of the kidneys? !!!!I'LL MARK YOU BRAINLIEST!!!! PLZ ANSWER CORRECTLY!!HOW MANY OUNCES ARE IN LITERS