We will see that the solution in the given interval is: x = 0.349 radians.
<h3>How to solve equations with the variable in the argument of a cosine?</h3>
We want to solve:
cos(3*x) = 1/2
Here we must use the inverse cosine function, Acos(x). Remember that:
cos(Acos(x)) = Acos(cos(x)) = x.
If we apply that in both sides, we get:
Acos( cos(3x) ) = Acos(1/2)
3*x = Acos(1/2)
x = Acos(1/2)/3 = 0.349
So x is equal to 0.349 radians, which belongs to the given interval.
If you want to learn more about trigonometry, you can read:
brainly.com/question/8120556
A)
distance covered
5*2/3 = 3.333
time taken = 21min
this means it takes
5*<span>6.306 = 31.53 to covers 5 km
b) </span><span>21min/3.33 = 6.306 time taken to ran 1 km</span>
First we turn the percent to a decimal by dividing it by 100.
25/100 = 0.25
" of " means multiply
0.25 x 204 = 51....so 25% of 204 is 51
E40435.29 = E404,000
E214729.08 = E215,000
E64968.75 = E650,000
E223589.99 = E224,000
E111111.11 = E110,000
Hope this helps , pleeease vote as brainliest!!
