So the question ask to find how to integrate cos2t without using substitution and base on my research, the integral of the cos2t = (1/2) sin(2t), and negate the said integral because the derivative of cosx is - sinx. I hope you are satisfied with my answer and feel free to ask for more
You're given the slope of the line and a point thru which the line passes. So it makes sense to use the point-slope form of the equation of a straight line: if the point is (a,b) and the slope is m, then
y-b=m(x-a). You'd then solve this for y to obtain the equation in slope-intercept form.
On the other hand, if you're asked to write the equation in slope-intercept form, starting with the general form of this equation may be faster: y=mx+b.
Substitute the given values for x and y (which are 25 and -9) and m (which is (2/5). Solve the resulting equation for b (the y-intercept).
Then write the finished equation: y=( ? )x + b, where b is the y-intercept you've just found.
Answer:
Option 2 is the correct answer
Step-by-step explanation:

The solution is 6326.59509248 =6329.60
p=5000,r=4,t=6 years
compound interest=P[1+r\100]^(t)
Step-by-step explanation:
Convert metre to centimetre
Recall: 1m = 100cm
That means,
3m = 3 * 100cm = 300cm
Now we compare them since they have the same unit.
300cm : 6cm
50 : 1
Answer = 50 : 1