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
eimsori [14]
3 years ago
8

If 3cot^2x - 5cotx = -2, then cotx = _____.

Mathematics
1 answer:
stealth61 [152]3 years ago
7 0
3cot²x - 5cotx = -2

Lets pretend cotx = t

3t² - 5t = -2
3t² - 5t + 2 = 0

factor polynomial
(3t-2)(t-1) = 0

3t-2 = 0
t-1 = 0

then "t" which is also cotx is equal to 1 or 2/3



You might be interested in
The diameter of a flour tortilla is 12 inches. What is the area to the nearest hundredth?
dimaraw [331]

3.14*d

3.14*12= 37.68

Rounded to the nearest hundredth would be 37.7

4 0
3 years ago
Read 2 more answers
Which description is correct for the polynomial 2x² + 2?
Blizzard [7]

Answer:

The polynomial is a quadratic binomial

Step-by-step explanation:

we have

2x^{2}+2

Classify the polynomial

<u>By the number of terms</u>

we know that

A polynomial with two terms is a binomial

<u>By the Degree of a Polynomial</u>

we know that

The degree of a polynomial is calculated by finding the largest exponent in the polynomial

In the given problem the largest exponent is 2

so

Is a quadratic equation

therefore

The polynomial is a quadratic binomial


6 0
3 years ago
Read 2 more answers
Marcelo can select from 2 types of oranges and 3 types of peaches. If he randomly selects 1 orange and 1 peach, how many possibl
ICE Princess25 [194]
6

2x3=6

oranges-
peaches-

possible combination:
1-

2-

3-

4-

5-

6-
8 0
3 years ago
What is the value of x
STALIN [3.7K]
X=11, set 10x+5x+15=180
                 15x+15=180, subtract 15 from 180= 165, then divide 165 by 15
7 0
3 years ago
How to solve the system of equation 500y-600x=2800 , 400y-400x=2400 by elimination
tatiyna

Answer:

x=2 and y=8

Step-by-step explanation:

Given:

Equation 1:

500y-600x=2800

Simplifying the above equation by dividing both sides by 100

\frac{500y-600x}{100}=\frac{2800}{100}

\frac{500y}{100}-\frac{600x}{100}=28\\\\5y-6x=28

Equation 2:

400y-400x=2400

Simplifying the above equation by dividing both sides by 400.

\frac{400y-400x}{400}=\frac{2400}{400}

\frac{400y}{400}-\frac{400x}{400}=6\\\\y-x=6

Now the system of equation is:

(1a) 5y-6x=28

(2a) y-x=6

Solving by elimination

Multiplying equation (2a) with -5

-5(y-x)=-5\times 6

(2b) -5y+5x=-30

Adding equations (1a) and (2b) in order to eliminate y

      5y-6x=28

+  -5y+5x=-30

We get -x=-2

∴ x=2

Plugging x=2 in equation (2a).

y-2=6

Adding 2 both sides.

y-2+2=6+2

∴ y=8

7 0
3 years ago
Other questions:
  • Answer The question... What is the slope of the line passing through the points (2,-5 ) and 4,1)?
    9·1 answer
  • What is the length of the side opposite O<br> 3 units<br> O<br> 4 units<br> O<br> 5 units<br> O<br> 6 units
    14·1 answer
  • Simplify the expression x^-4×y^3×x^4×y^2.
    14·1 answer
  • I NEED HELP AS SOON AS POSSIBLE!
    12·1 answer
  • Find m2 ROL if<br><br> m2 ROC = 31° and<br><br> m2 COL = 52°<br><br> 0<br><br> L
    13·1 answer
  • Find the volume of the cylinder. Round your answer to the nearest tenth.
    6·1 answer
  • X sobre 6 = 4<br> ????????
    15·2 answers
  • 5 + 3 = 28<br> 9 + 1 = 810<br> 8 + 6 = 214<br> 5 + 4 = 19<br> then, 7 + 3 = ???
    10·2 answers
  • HELP ASAP PLEASE! GIVING AWAY 30 POINTS AND BRAINLIEST!
    15·2 answers
  • Add. x+2/3x+x+5/2x2+10x
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!