All categories

3 years ago

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

1 answer:

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

Indicate the equation of the given line in standard form. The line through the midpoint of and perpendicular to the segment join

lianna [129]

The midpoint is (3,-1)

5 0

3 years ago

Math experts please help!!!!

Shalnov [3]

Answer:

x is 72 degrees

Step-by-step explanation:

To find the measure of x, you need to know the sum of the interior angles of the pentagon.

Sum = (n - 2) x 180

Sum = (5 - 2) x 180

Sum = 3 x 180

Sum = 540

Now divide this by 5, the number of sides

540/5 = 108 degrees for each angle of the pentagon.

To find the measure of x, look at the opposite angle, which is 108 degrees

180 - 108 = 72

The measure of angle x is 72 degrees.

If this answer is correct, please make me Brainliest!

5 0

3 years ago

What percent of 82 is 9.75. Round your answer to the nearest tenth

AysviL [449]

Hi there!

8 would be the nearest ten of 7.995..

1.Multiply 82 with 0.01:

$82$ · $0.01=0.82$

2.Multiply the terms:

$0.82$ · $9.75=7.995$

3.Round the term:

$7.995=8$

Therefore, 82% of 9.75 in nearest tenth is 8.

4 0

2 years ago

Find the volume of the rectangular prism

user100 [1]

Volume= Length • Width • Height

Given info: 6•8•9= 432cm cubed

8 0

3 years ago

Read 2 more answers

Please help me I’m struggling :’(

Vesna [10]

Answer:

B. $x = \sqrt{40}$

Step-by-step explanation:

Using Pythagorean theorem, find the value of x.

Pythagorean theorem is given as $c^2 = a^2 + b^2$

Where,

c is the longest side of a right angled ∆ = the hypotenuse = x

a and b are legs of the right angled ∆ = 2 and 6

Plug in the values into the equation and solve for x

$x^2 = 2^2 + 6^2$

$x^2 = 4 + 36$

$x^2 = 40$

$x = \sqrt{40}$

5 0

3 years ago