Mathematics High School

PLEASE HELP SOON!!!!
The terminal ray of angle β, drawn in standard position, passes through the point (−7, 2√3).

What is the value of cosβ?

Answers

Answer 1

Answer: -7√61/61

Step-by-step explanation:

I got the answer wrong on my test and this was the correct answer shown.

Answer 2

The cosine of the terminal ray of angle β comes to be -7/√61.

What is the cosine of an angle?

The cosine of an angle is the ratio of the adjacent side to the hypotenuse.

By Pythagoras' theorem

Hypotenuse² = 7²+(2√3)²

Hypotenuse =√61

From the diagram attached

[tex]Cos(180-\beta )=\frac{7}{\sqrt{61} }[/tex]

We know [tex]Cos(180-\beta )=-Cos\beta[/tex]

[tex]-Cos\beta =\frac{7}{\sqrt{61} }[/tex]

[tex]Cos\beta =\frac{-7}{\sqrt{61} }[/tex]

So, the value of cosβ =-7/√61.

Hence, The cosine of the terminal ray of angle β comes to be -7/√61.

To get more about cosine visit:

https://brainly.com/question/24349828

PLEASE HELP SOON!!!!The Terminal Ray Of Angle , Drawn In Standard Position, Passes Through The Point

Related Questions

O.8 repeating decimal convert into a fraction in simplest form​

Answers

Answer:

4/5

Step-by-step explanation:

4/5 is in it simplest form

plz mark as brainliest(only if the answer is correct)

thank you

19Boli

At a cupcake shop they make three chocolate cupcakes for every four vanilla cupcakes if they make 270 chocolate cupcakes how many vanilla cupcakes will they make?

Answers

Answer:

154, hope this helps

Step-by-step explanation:

116 + 154

Solve 7+x over 3 = 2x-5

Answers

I hope it helps you dear ☺️

This graph shows how the total number of postcards Kendra buys is related to the number of days she spends on vacation.

What is the constant of variation? Write your answer as a fraction.

Answers

Two postcards every five days therefore I think it would be 2/5 because rose over run (this may be wrong but that is was I got)

In the given context the constant of variation(k) is 2/5.

What is the constant variation?

The link between variables remains constant because of the constant of variation.

It is useful to use one of the following formulas to determine the constant of variation for an equation/

If k is the variational constant, then either x = k/y (inverse variation) or

x = ky (direct variation) should be used.

From the given graph we can observe the relationship between the number of postcards Kendra buys is related to the number of days is in direct variation when x = 5, y = 2.

∴ x = ky.

5 = 2k.

k = 2/5.

The constant of variation is 2/5.

learn more about variation here :

https://brainly.com/question/14254277

#SPJ2

Help ok help I will give brainlyest

Answers

Answer:

594 cubic inches

Step-by-step explanation:

you multiply length times width times height to get 594

Answer:594

Step-by-step explanation: times 18x11x3

hope this helps

List the steps to calculate the slope/rate of change using a calculator.

Answers

Is this what you’re talking about

∠FLA and ∠LATare supplementary angles. m∠FLA=(4x+8)° and m∠LAT=(6x+2)°. Find the measure of ∠FLA.

Answers

Answer:

m∠ABD= 22°

Step-by-step explanation:

The measure of an angle is 41 degrees. What is the measure of a complimentary angle?

Answers

Answer:

49 degrees

Step-by-step explanation:

Complementary angles are 2 angles that add up to 90 degrees. Subtract 41 from 90 to get 49 to find the other angle.

Hope this helped!

plz help me with this .. ​

Answers

Step-by-step explanation:

hope it helps if not go to that app

Can ya help me with the answer

Answers

It would be C. Hope this helps!
Answer:
It’s the 3rd one

Edward had a lump of play doh that was 2 1/2 inches long. If he stretched it out to 3 times its current length how long would it be

Answers

It would be 7.5 inches

Answer:

the answer would be 7.5 inches long or 7 1/2 inches long

Step-by-step explanation:

2.5 multiplied by 3

If you multiply my number by -4 and subtract 20, the result is 8. What’s my number?

Answers

your number is -7.
-7 x -4 = (positive) 28
28-20 = 8

Answer:

It's -7

Step-by-step explanation:

-7 • -4=28 (multiplying 2 negatives gives you a positive)

28 - 20 =8

When taking the square root of ANY positive integer there will be ____ solutions, one that is __________________ and one that is ___________________.

Answers

Answer:

2 solutions, one positive and one negative

Step-by-step explanation:

A positive times a positive is always positive and a negative times a negative is always positive. Example square root of 9 is -3 and 3. 3x3=9 and -3 x -3= 9

Remind me to never trust my gut.

Answers

Answer:

Step-by-step explanation:

Distribute the negative sign to turn the equation into pure addition. Then, change the denominator of the two fractions to the same thing.

Multiply 12/11 by 3/3

[tex]\frac{12}{11}*\frac{3}{3}=\frac{36}{33}[/tex]

Multiply 2/3 by 11/11

[tex]\frac{2}{3}*\frac{11}{11} =\frac{22}{33}[/tex]

Add them together now

[tex]\frac{36}{33} +\frac{22}{33} =\frac{58}{33}[/tex]

Answer:

1.758 Hope this helps :,D haven't spoken to u in a it tho- want to rp?

Step-by-step explanation:

Solve the system by graphing. It is REQUIRED to check your solution. Show work for this problem on your work page.

y = x -1

y = -2x -4

Answers

Answer:

y=x-1

y=-2x-4

although I cant summon a graph for this one, I can give cords

for first graph (-2,-3),(-1,-2),(0,-1), (1,0),(2,1)

For second graph the slope is down 2 over 1, and begins at (0,-4).

(-2,0)(-1,-2),(0,-4),(1,-6),(2,-8)

Let's solve for x.

y=x−1

Step 1: Flip the equation.

x−1=y

Step 2: Add 1 to both sides.

x−1+1=y+1

x=y+1

Answer:

x=y+1

---------------------------------

Let's solve for x.

y=−2x−4

Step 1: Flip the equation.

−2x−4=y

Step 2: Add 4 to both sides.

−2x−4+4=y+4

−2x=y+4

Step 3: Divide both sides by -2.

−2x

−2

=

y+4

−2

x=

−1

2

y−2

Answer:

x=

−1

2

y−2

A triangle has side lengths of ( 4h + 2k) centimeters, (9h + 4m) centimeters, and (2m - k) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?

Answers

Answer:

P = (13h+k+6m) cm

Step-by-step explanation:

Given that,

The side lengths of a triangle are :

(4h + 2k) cm, (9h + 4m) cm, and (2m - k) cm

We need to find the perimeter of the triangle.

We know that,

Perimeter = sum of all sides

So,

P = (4h + 2k)+(9h + 4m)+(2m - k)

= (4h+9h)+(2k-k)+(4m+2m)

= 13h+k+6m

Hence, the perimeter of the triangle is (13h+k+6m) cm.

Jayla’s age is 10 less than three times her brother’s age. Jayla is 11 years old. How old is her brother?

Answers

He’s 1 years old duh

I’ll mark brainiest please help

Answers

Answer:

idrk

Step-by-step explanation:

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.Immersive Reader
(1.5 Points)
A )D: {1, -3, -4,}-R: {0, 1, 2, -4}
B) D:{0, 1, 2, 3, 4}- R:{1, -3, -4}
C) D:{0, 1, 2, -4}- R:{1, -3, -4}
D) None of the above

Answers

Answer:

C. D:{0, 1, 2, -4}- R:{1, -3, -4}

Step-by-step explanation:

find the solution to the following system of equations using substitution or elimination​

Answers

Answer:

D. (2,-3)

Step-by-step explanation:

if you substitute 2 for the x value and -3 for the y value in both equations, it works out.

instead of y=3x-9 it would be -3=3(2)-9.

you solve and get -3=-3, so it's a solution.

and instead of y=-2x+1 it would be -3=2(2)+1. after solving it, you would get -3=-3 again, so it works for both equations.

solve the system of equations y=9x+13 y=2x+48 what does the second one equal

Answers

Answer:

x=5 and y=58

Step-by-step explanation:

Find the solution of the system of equations

15x – 10y = -30
5x – 9y = 7

Answers

Answer: x=-4, y=-3

Explanation: We can use the elimination method to make two of the variables cancel out.

For the second question, we can multiply everything by -3 to get -15x+27=-21, where 15x and -15x will cancel out.

Adding the remaining equations will give us 17y=-51 and solving for y gives us y=-3.

If we plug -3 in for y in the 2nd original equation, we get 5x+27=-4, where solving for x will give us x=-4

0/5
X At the neighborhood store, hot dog buns are only sold in packs of 8 for
$0.88. If c(b) represents the cost in dollars to b buns, what is the domain
of c(b)? *
O A) {0, 1, 2, 3, 4, 5, ...)
O B) {0.88, 1.76, 2.64, ...}
O C) {0, 8, 16, 24, 32, ...}
D) Cannot be determined

Answers

Answer:

c

Step-by-step explanation:

1+1 is 2 right? i just have to be sure

Answers

Answer:

Absolutely

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

How many times larger than 2x10^2 is 2x10^8

Answers

1000000 times larger

Step-by-step explanation:

2x10^2 is 200.

2x10^8 is 200000000

2x10^8  is 1000000 times larger that 2x10^2

What's the equation?

Answers

Answer:

y=4x

Step-by-step explanation:

The cash register can be off by a maximum of $15.

Answers

Answer:

??

Step-by-step explanation:

Answer:

???

Step-by-step explanation:

I’ll give you brainless please help me

Answers

Answer:

I'm pretty sure its 4

Cara monitors a snail in her aquarium. She notes that this morning it crawled 1 inch up the glass. A few hours later it crawled another 2 inches up the glass. Later it crawled 4 inches down the glass. How far is the snail from where it started?

show your answer i will give brainly ppls

Answers

Answer: hmm I think it would be one inch back where it was before

Explanation: It crawled 3 inches up together then crawled 4 inches down. Which if we go up 3 then back down 4 the snail lands in the same place it was before.

Hope this helps haha!

Name the missing denominator.
3/4 12/

Answers

Answer:

16

Step-by-step explanation:

3/4=12/16

Answer:

16

Step-by-step explanation:

to get from 3 to 12 you multiply by 4 so you would have to do the same to the denominator so 4x4 is 16

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