Mathematics College

Is it -56/65????????????????

Is It -56/65????????????????

Answers

Answer 1

Answer:

[tex] \cos (u + v) = -\dfrac{56}{65} [/tex]

Good job!

Step-by-step explanation:

[tex] \cos (u + v) = \cos u \cos v - \sin u \sin v [/tex]

[tex] \sin u = -\dfrac{3}{5} [/tex]; u is in QIII.

That makes [tex] \cos u = -\dfrac{4}{5} [/tex]

[tex] \sin v = -\dfrac{12}{13} [/tex]; v is in QIV.

That makes [tex] \cos v = \dfrac{5}{13} [/tex]

[tex] \cos (u + v) = (-\dfrac{4}{5})(\dfrac{5}{13}) - (-\dfrac{3}{5})(-\dfrac{12}{13}) [/tex]

[tex] \cos (u + v) = -\dfrac{20}{65} - \dfrac{36}{65} [/tex]

[tex] \cos (u + v) = -\dfrac{56}{65} [/tex]

You are correct.

Answer 2

Answer:

Step-by-step explanation:

-0.8615

Related Questions

In other words, which one doesn't belong?
x>-2
3< x
x < 4
5>6
Please help!!

Answers

Answer:

5>6

Step-by-step explanation:

I think the answer is 5>2:)

Is there a proportional relationship between x and y?
5
10
6
9
2
Cans of Paint (x)
Bird Houses Painted (y)
15
30
18
27
6
Yes, k =2
Yes, k=3
No

Answers

Answer:

Unnnnnnnnnnnnnnnnnnnnnnnnbnbnnnn

Yes K=3 bc
3 times 5 is 15
3 times 10 is 30
3 times 6 is 18
3 times 9 is 27
And 3 times 2 is 6

A study reported that about half of young adults continue to text and drive, despite the dangers. To find out if this
applies to teens, you asked an SRS of 30 classmates if they texted while driving, and 13 responded "Yes."
To see if this result is surprising, you need to conduct a simulation to estimate the probability of obtaining a sample
result as low as yours.
Using the following line of random numbers, where even = Yes and odd = No, how many "Yes" responses are there if
this is the first trial of your simulation? Note: O is considered an even number.
71487 09984 29077 14863 61683 47052 62224 51025
0 11
0 14
16
0 19

Answers

Answer:16

Step-by-step explanation:

I just took this test on edgueinity

Answer:

b

Step-by-step explanation:

Ava 2022

Allison and her classmates planted bean seeds at the same time as Yuki and her classmates in Tokyo did. Allison is video-chatting with Yuki about their class seedlings. Who should expect to have the taller plant at the end of the school year?

Answers

Answer:

probably yuki

Step-by-step explanation:

real fact

the price of 41gram apple is 10.25 rupees.then how many rupees for 1 kg apple​

Answers

Answer:

1kg apple for 0.25 rupees

Step-by-step explanation:

Hope this helps!!

A DJ is preparing a playlist of 23 songs. How many different ways can the DJ arrange the first four songs on the​ playlist?

Answers

Answer:

Sample Response: The third DJ had (3r)/2 songs. Multiply r by 3 because the second DJ had 3 times as many as the first. Then divide that number by 2 because the third DJ has half as many.

DJ can arrange 88,55 times the first four songs on the playlist.

What is permutation and combination?

Permutation and combination are ways to arrange values in a set. In permutation the order of arrangement matters, but in combination the order of arrangement does not matter,

Given that,

DJ prepares a playlist of 23 songs.

Since, DJ arranges the first four songs on the playlist,

The ways to arrange the song on the playlist,

= [tex]^{23}C_4[/tex]

= 23 ! / (4! x (23 - 4)! )

= 23 ! / (4! x 19!)

= (23 x 22 x 21 x 20 x 19!) / (4 x 3 x 2 x 1  x 19!)

= 23 x 11 x 7 x 5

= 8855

There are 8,855 ways to arrange first 4 songs.

To know more about Permutation and Combination on:

https://brainly.com/question/13387529

#SPJ2

Find the 2nd term in the expansion of (1+3y)5

Answers

Step-by-step explanation:

Using pascal's triangle;

Then second term of the expansion (1+3y)5

is given as:

5(1)^4(3y) = 15y

Answer:

15y

Step-by-step explanation:

−4x−y=24
whats the points

Answers

-4x-y=24
-4x=y+24
Y=-4x-24
Now that we have the question, we can plug numbers in for x to get y-coords.

-4(0)-24
-24
(0,-24)

-4(1)-24
-4-24
(1,-28)

A dice is rolled twice.
What is the probability of getting a 2 AND a 5?

Answers

There is a 36% chance of probabilty and can i have brainliest answer

Find the equation of the graphed line.
The answer I put in was incorrect and I’m not sure why

Answers

Answer:

-3x + 2 = y

As the y-intercept is y = 3

And the rise/run = 3/-1

2.) Your parents drove 300 miles in 6 hours. At what speed (miles per hour) were they driving?

Answers

Answer:

50 mph

Step-by-step explanation:

300 / 6 = 50

you can check this by setting up the equation,

6 x 50 = 300

So with this being said, you can conclude that your parents are driving a 50 miles per hour.

56.4 - 27.3
what is the anwser

Answers

Answer:

the answer is 29.1. hope this helped

Step-by-step explanation:

use a fkn calculator

Consider the relationship between the words pine and tree Which answer choice contains a pair of words with the same relationship? A. book: title B. hook: instrument C. badger: animal D. head: scarf​

Answers

Answer:

Maybe it's C.

Step-by-step explanation:

Answer:

ti is  A BOOK TITLE

Step-by-step explanation:

can you help me on this question
they are the same but one of the is a bad pic

Answers

0.000017 in scientific notation would be: 1.7 x 10^-5

giving 70 points please help I only have 20 minutes to get It.......​

Answers

Answer: 8

Step-by-step explanation:

what value for x makes this equation true? 0.6x-5=0.1x+7​

Answers

I guess it’s It’s already true

what is greater 0 or 2x-6?​

Answers

Answer:

It's 0

Step-by-step explanation:

0 is a greater number than the answer for 2 times -6, which is -12


A football player completed a 35 yard pass. How many inches did he
throw the ball?
1,000 in
1,260 in
1450 in
105 in

Answers

Answer:

  1260 inches

Step-by-step explanation:

1 yard = 36 inches

35 * 36 = 1260 inches

What is the midpoint of the segment shown below?
10
A. (10,1)
B.(5,1)
c.(5,1/2)
d. (10,1/2)

Answers

The answer is C (5,1/2)
The answer is C(5.1/2)


(x-8) (2x +9)
Test the equivalency of the two expressions by using the value x =9. Show your test.

Answers

im not being rude i was just trying yo say sais the Anser but.it wouldnt let mr so now im sad

What is the solution to this equation? 6x + 5 = 29 Enter your answer in the box. x =

Answers

X should be 4 , 6*4= 24 +5 =29

Answer:x=4

Step-by-step explanation: I took the K12 test and I got 100%

a
domain: {0, 2, 4), range: (2,6, 10}
b. domain: {0}, range: {2}
domain: (2, 6, 107, range: {0, 2, 4}
d.
domain: {2}, range: {0}
C.

Answers

Answer:

A

Step-by-step explanation:

One inlet pipe can fill an empty pool in 6 hours, and a drain can empty the pool in 8 hours. How long will it take the pipe to fill the pool if the drain is left open? Express your answer as a reduced fraction.

Answers

Answer:

24 hours

Step-by-step explanation:

Let x represent the time required to fill both pipes if they are left open

1/6 + (-1/8)= 1/x

1/6 - 1/8= 1/x

Divide through by 48

48(1/6) -48(1/8) = 48(1/x)

8 - 6 = 48 x

2= 48/x

2x= 48

x= 48/2

x= 24

Hence it will take 24 hours to fill the pipe if the drain is left open

23.85 + 7.42 + 16.15

Answers

Answer:

47.42

Step-by-step explanation:

Try solving this way

 23.85

+07.42

+16.16

=======

47.42

List the side lengths from shortest to longest

Answers

Answer:

MO, NO, MN

Step-by-step explanation:

Answer:

the lengths from shortest to longest is: m, o, n.

Jake, Utah, renting with a friend
Hourly rate: $8.75/hour
Hours worked: 40/40
Commission rate: 2.75%
Sales amount: $7500
Expenses: everything.
Y
CO20

Answers

Answer:

What is the question?

Step-by-step explanation:

I will change my  answer if you put a clear question up...

Please help me. Will give brainliest.

Answers

Answer:

b.)  (6,7)

Step-by-step explanation:

the figure is translated 2 units to the left

In 1902, the yearly attendance at a major league baseball park was 3.4 × 105 people.
One hundred years later, the yearly attendance was 1.7 × 106 fans.
How many times greater was the attendance in 2002 than in 1902? Enter your answer in the box. helpppppp

Answers

Answer: 1902 had 357 people and 2002 had 180.2 people so, the answer would be  

 

176.8

Step-by-step explanation: i hope  this helps

plz tell me if its wrong so i can fix it

Which list has three equivalent fractions for 3/4?

Answers

1/3 and 2/3 and 4/4 yep I’m not good

Answer:

6/8 12/16 27/36

Step-by-step explanation:

A customer purchased a lawn mower for a total purchase price of $318.75. If the state has a sales tax rate of 7.75%, what was the selling price of the lawn mower

Answers

Answer:

$343.45

Step-by-step explanation:

$318.75 x 1.0775 = $343.45

or

$318.75 x 0.0775 = $24.70

$318.75 + $24.70 = $343.45

The selling price of the lawn mower is $343.45 if the customer purchased a lawn mower for a total purchase price of $318.75.

What is percentage?

It is defined as the ratio of two numbers expressed in the fraction of 100 parts. It is the measure to compare two data, the % sign is used to express the percentage.

We have a customer purchased a lawn mower for a total purchase price of $318.75.

Sales tax rate = 7.75%

Sales tax amount = 7.75% of $318.75

Sales tax amount = $24.64 ≈ $24.70

Original price = 318.75 + $24.70 = $343.45

Thus, the selling price of the lawn mower is $343.45 if the customer purchased a lawn mower for a total purchase price of $318.75.

Learn more about the percentage here:

brainly.com/question/8011401

#SPJ2

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