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NeX [460]
2 years ago
6

Is that correct? I don’t think it is, can someone tell me the answer

Mathematics
1 answer:
lidiya [134]2 years ago
6 0

It is right but what's the full question

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Find the x-values that are solutions of the equation 5cot^2x-15=0
julia-pushkina [17]
First solve for the trig function 'cot'
cot^2 x = \frac{15}{5} = 3

Next take the sqrt of both sides (include plus/minus)
cot x = \pm \sqrt{3}

Now take reciprocal of both sides, this will change trig function to 'tan'
(cot = 1/tan)

tan x = \pm \frac{1}{\sqrt{3}} = \pm \frac{\sqrt{3}}{3}

Finally use the unit circle or inverse tan on your calculator to find x.
There will be 4 solutions, one for each quadrant.

x = \frac{\pi}{6}, \frac{5\pi}{6}, \frac{7\pi}{6}, \frac{11\pi}{6}
3 0
3 years ago
While hiking, Sanjay went up 200 meters. If Sanjay started at 500 meters above sea level, which integers represents his elevatio
Aliun [14]

Answer:300

Step-by-step explanation:

-200+500=300

3 0
3 years ago
A toy plane moves at a constant speed of 2m/s. How long will it travel a distance of 42 meters?
Tpy6a [65]

Answer:

option A. 21 sec

Step-by-step explanation:

Speed = the distance over the time

Given:

Speed = 2 m/s  and distance = 42 m and time = t

So,

2 = 42/t

Solve for t

t = 42/2 = 21 sec.

The answer is option A. 21 sec

7 0
3 years ago
What’s the answer to this question
Andreas93 [3]

Answer:

ab

Step-by-step explanation:

When all of the variables are the same in a problem, think of them as the same term. They can be added and subtracted just as you would add and subtract normal numbers.

For example if I have 5 bananas on a table and take away 3 bananas. I only have two bananas left (2b). It's the same when there are variables!

Subtract 9 from 3:

-6ab+7ab

Add -6 to 7:

ab

Your final answer is ab!

8 0
3 years ago
Read 2 more answers
en la plaza de un pueblo se quiere colocar una estatua dedicada a un ciudadano. Se desea situarla a igual distancia de la iglesi
notka56 [123]

Answer:

Step-by-step explanation:

hhh

8 0
4 years ago
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