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
Karolina [17]
3 years ago
14

Sin2xcosx + cos2xsinx=-1/2

Mathematics
1 answer:
Gnesinka [82]3 years ago
8 0
If you know the rule,

The left side is equal to sin(3x), which is equal to -1/2

So x = (12pi*n-pi) / 18, where n is any integer.
You might be interested in
A farmer can buy two types of plant​ food, mix A and mix B. Each cubic yard of mix A contains 35 pounds of phosphoric​ acid, 15
Nadusha1986 [10]

Answer:

The answer is below

Step-by-step explanation:

Given that the minimum monthly requirements are 840 pounds of phosphoric​ acid, hence:

35 pounds of phosphoric acid mix A + 14 pounds of phosphoric acid mix B ≥ 840 pounds of phosphoric​ acid

35x + 14y ≥ 840

The minimum monthly requirements are 540 pounds of nitrogen, hence:

15 pounds of nitrogen mix A + 18 pounds of nitrogen mix B ≥ 540 pounds of nitrogen

15x + 18y ≥ 540

The minimum monthly requirements are 768 pounds of potash, hence:

16 pounds of potash mix A + 64 pounds of potash mix B ≥ 768 pounds of potash

16x + 64y ≥ 768

Also, x ≥ 0 and y ≥0.

Therefore the equations are:

35x + 14y ≥ 840

15x + 18y ≥ 540

16x + 64y ≥ 768

x ≥ 0 and y ≥ 0

Plotting with geogebra gives the graph below.

The point are (0,60), (48,0), (18,15), (32,4)

7 0
2 years ago
Help with this algebra question
Degger [83]
We have:
 3x + 4y = 12
 The first thing we should do in this case is clear and.
 We have then:
 4y = -3x + 12
 y = (- 3x + 12) / (4)
 Rewriting:
 y = (- 3/4) x + 3
 We evaluate now for x = 4
 y = (- 3/4) (4) + 3
 y = -3 + 3
 y = 0
 The ordered pair is:
 (x, y) = (4, 0)
 Answer:
 
y = (- 3/4) x + 3
 
(x, y) = (4, 0)
6 0
3 years ago
Read 2 more answers
The sum of the measures of the interior angles of a polygon is 1440 How many sides does it have ________ sides
Rufina [12.5K]
The only shape that has that much is a decagon 10 sides. t<span>he </span>sum<span> of the interior </span>angles of a  Regular Decagon is 1440 degrees. 
8 0
3 years ago
Read 2 more answers
Sheniah went to McDonald's and bought a soda for one dollar. She also bought a Big Mac. For any price of the Big Mac, what would
Natalka [10]

Answer:

$1+x(price of big mac)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Consider the quadratic function f(x) = x2 – 5x + 6.
PolarNik [594]
A = 2
b = -5
c = 6

The coefficients are 2 and -5
The constant is 6
5 0
3 years ago
Other questions:
  • Complete the steps used to slove a system of liner equations by substituting the value of y into one of the original equations t
    11·1 answer
  • Only number 9. Please— Thanks
    5·1 answer
  • Solve for ∡1:
    7·1 answer
  • During the last week of the semester, students at a certain college spend on the average 4.2 hours using the school’s computer t
    10·1 answer
  • 2a) Solve using substitution.
    15·1 answer
  • Help asap its a live class and they want me to do this
    6·1 answer
  • write each of the following fraction as equivalent fractions with a denominator of 10 a. 1/2 b. 1/4 c. 3/30 d. 12/30​
    5·1 answer
  • 3) Puan wishes to build a garden at the bottom of his property. He wants to split in
    10·1 answer
  • A triangle has vertices at (3,2),(3,6),(7,2) find the area of the triangle
    9·1 answer
  • Angle A and angle B form a vertical angle pair. The measure of angle A is six less than twice times the measure of angle B. Find
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!