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
KengaRu [80]
4 years ago
6

Find the exact value of cos 75 by using a sum or difference formula

Mathematics
1 answer:
anygoal [31]4 years ago
3 0
Cos 75 = 45 + 30

Formula: cos 45 x cos 30 - sin 45 x sin 30

Cos 45 = root 2 / 2
Cos 30 = root 3 / 2
Sin 45 = root 2 / 2
Sin 30 = 1 / 2

You might be interested in
The number 3.14 is a rounded value of the mathematical quantity π. If you replace 3.14 with π, what is the exact formula for the
Novay_Z [31]

 the  radius = 3.14*2r= 6.28r.i got this answer from user

Lizplllllllll



3 0
4 years ago
A manufacturer needs to pay $300 to start making a certain new product. Besides the initial costs of $300, this product will als
maw [93]

Answer:

\displaystyle \frac{300+18x}{x}\le 24

Step-by-step explanation:

<u>Average Cost</u>

Making a certain new product costs $300 plus $18 per product.

The total cost for x products is given by:

300 + 18x

To get the average cost, we divide the total cost by the number of products manufactured:

\displaystyle A=\frac{300+18x}{x}

If the manufacturer wants to keep the average cost at $24 or less:

\mathbf{\displaystyle \frac{300+18x}{x}\le 24}

This is the required inequality

6 0
3 years ago
There are 32 cookies in a 20-ounce package of Oreos. How many Oreos are in a 15-ounce package?
Helga [31]

<em>Answer:</em>

<em>2.133</em>

<em>Step-by-step explanation:</em>

<em>Hope this helps!</em>

4 0
3 years ago
Read 2 more answers
Un empresario textil de Gamarra desea distribuir un bono de productividad entre sus empleados por su buen desempeño en la semana
spin [16.1K]

Answer:

There are 6 employees in the factory

The amount of money distributed to the employees = 5000 soles

To solve the problem without using equations, We would try different numbers for the employees starting from 2 employees.

Question:

A textile entrepreneur from Gamarra wants to distribute a productivity bonus among his employees for his good

performance in the week. Making calculations, he realizes that if he gave each one 800 soles, he would have

200 leftovers , and if he gave them 900 soles, he would lack 400. How many employees are there in your factory? How much money do you have to distribute? How would you solve the problem without using equations?

Step-by-step explanation:

For the first two questions, we would determine the number of employees that are in the factory and the amount of money that was distributed by solving using equations. Each statement would be written in the form of an equation.

Let the amount of money distributed to the employees = p

The number of employees in the factory = q

First statement showing the relationship of the variables:

800q + 200 = p ...equation 1

2nd statement showing the relationship of the variables:

900q - 400 = p ...equation 2

Equating both equations: p = p

800q + 200 = 900q - 400

900q-800q = 200+400

100q = 600

q = 600/100 = 6

Substitute for q = 6 in any if the equation.

Using equation 1

800(6) + 200 = p

p = 5000

Therefore, the amount of money distributed to the employees = 5000soles

The number of employees in the factory = 6

To solve the problem without using equations, We would try different numbers for the employees starting from 2 employees (as they are more than 1) to arrive at a particular amount distributed:

(800×2) + 200 = 1800

(900×2) - 400 = 1400

By increasing the numbers using consecutive even numbers (2,4,6...) and multiplying, we would arrive at a value that is equal to both.

8 0
3 years ago
What it's "Linear Regression"?
Flauer [41]
Linear Regression is an approach for modeling the relationship between a scalar dependent variable y and one or more explanatory variables denoted x. the case of one explanatory variable is called simple linear regression
6 0
3 years ago
Read 2 more answers
Other questions:
  • Virginia drew the figure at the right on the board. The steps below are used to solve for the unknown angle, x, in the figure bu
    8·1 answer
  • Factor 4n 2 - 5n - 6.<br> a.(4n - 3)(n + 2)<br> b.(4n + 3)(n - 2)<br> c.(4n + 2)(n - 3)
    12·2 answers
  • Please helppppp 20 points
    11·1 answer
  • Jacobs college savings are invested in a bond that pays an annual interest of 6.2% compounded continuously. How long will it tak
    10·1 answer
  • Find the volume of the backpack that is 17” x 12” x 4”. i would solve using l x w x h, but there is a hemisphere or something on
    9·1 answer
  • Background Layout -
    7·1 answer
  • If a video is getting 5,000 views every 10 minutes, how long will it take to reach 60,000 views?
    9·1 answer
  • What is the value of n? Write your answer as a number only
    7·1 answer
  • Emily and Fred each have some money.
    7·2 answers
  • The graph of a linear equation passes through (0, -6) and (9,0).<br> What is the equation?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!