1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nadya68 [22]
2 years ago
14

PLEASE HELP WORTH 50 POINTS

Mathematics
1 answer:
VashaNatasha [74]2 years ago
5 0

Answer:cos( A + B ) = cosAcosB - sinAsinB ;

cos( A + B ) / ( cosAsinB ) = ( cosAcosB - sinAsinB ) / ( cosAsinB ) = ( cosAcosB ) / ( cosAsinB ) - ( sinAsinB ) / ( cosAsinB ) = cosB / sinB - sinA / cosA = cotB - tanA ;

                     

tan²(x) - sin²(x) = sin²(x)/cos²(x) - sin²(x)

… = sin²(x) (1/cos²(x) - 1)

… = sin²(x) (sec²(x) - 1)

… = sin²(x) tan²(x)

Step-by-step explanation:

You might be interested in
Select the correct answer. The volume of one of the Great Lakes is 3. 5 × 103 cubic kilometers. If there are 6. 3 × 107 fish in
valentinak56 [21]

The average number of fish per cubic kilometer is 1. 8 \times 10^4.

The correct option is B.

Given

The volume of one of the Great Lakes is 3.5 × 103 cubic kilometers.

The number of fish in the lake = 6. 3 × 107.

<h3>What is the average value?</h3>

The average is the middle value of the given data set and is calculated by adding up all the numbers and dividing the result by the total quantity of figures added.

The average number of fish per cubic kilometer is given by;

\rm \text{The average number of fish per cubic kilometer}= \dfrac{Number \ of \ fish \ in \ lake}{Total \ volume \ of \ lake}

Substitute all the values in the formula;

\rm \text{The average number of fish per cubic kilometer}= \dfrac{Number \ of \ fish \ in \ lake}{Total \ volume \ of \ lake}\\\\ \text{The average number of fish per cubic kilometer}= \dfrac{6.3\times 10^7}{3.5\times 10^3}\\ \text{The average number of fish per cubic kilometer}= 1.8 \times 10^4

Hence, the average number of fish per cubic kilometer is 1. 8 \times 10^4.

To know more about the Average rate click the link given below.

brainly.com/question/12395856

5 0
2 years ago
The radius of a circle is 9.8 meters. What is the circle's area? Use 3.14 for pi and round your answer to the nearest hundredth
Sidana [21]

Answer:

301.719

Step-by-step explanation:

Area of a circle is 3.142 x r². Hope this helps!!!

6 0
2 years ago
10 more than 2 times a number is equal to 2 times the number plus 50. What is the number?
Rudik [331]

Answer:

No Solutions

Step-by-step explanation:

When you set up the equation 2x + 10 = 2x + 50, and you subtract 2x from both sides you get 10 = 50, which obviously is never true...

4 0
3 years ago
Read 2 more answers
use the vertical line test to determine if the relation (-6,-2), (-2,6), (0,3), (3,5) is a function. Explain your response.
sattari [20]
Graph the points and connect them and draw vertical lines in between them. You can already tell it's a function because every input has exactly on output.
6 0
3 years ago
I need help with two questions, and an explanation on how to do them please
Lilit [14]

$39 multiply that by 1/3  OR  39 divide that by 3 . That will get 13 .

39 multiply that by 1/3 OR 39 divide that by 4 . You will get 9.75

Add 13 and 9.75  

13+9.75=22.75

Now you subtract 39 - 22.75

You will get 16.25

6 0
3 years ago
Other questions:
  • an appliance store sells lamps at $ 95.00 for two.a department store sells similar lamps at five for 250.00 which store sells at
    11·1 answer
  • In one baseball season, Peter hit twice the difference of the number of home runs Alice hit and 6. Altogether, they hit 18 home
    11·1 answer
  • The number of "destination weddings" has skyrocketed in recent years. For example, many couples are opting to have their wedding
    12·1 answer
  • What is the period of the sinusoidal function?
    15·2 answers
  • What is 36=6b — 6+b
    6·2 answers
  • Fran is making a punch for her birthday party. She needs 4 1/5 liters of juice for the punch, but she only has 1 4/5 liters. How
    6·2 answers
  • Point A is located at (-6, 2). Which point on the coordinate plane shows a reflection of point A across the
    12·1 answer
  • Simplify in Exponential form <br> First correct answer gets BRAINLIEST
    5·2 answers
  • Solve the following eqation: 4m - 12 = 0
    15·2 answers
  • What is the value of log(x exponent 2 y exponent 3 divided by z) when given the following:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!