Answer:
\int\limits^{\pi/2} _0 (1+4cos^{2} (2x)dx
Step-by-step explanation:
Arc length is calculated by dividing the arcs in to small segments ds
By pythagoren theorem

then integrate ds to get arc length.
We are given a function as
y = sin 2x in the interval [0, pi/2]
To find arc length in the interval
Arc length 
Hence arc length would be
B)
25. 3y+15
26. 15k+20
27. 21n+7p
28. 60w+20x
Also, you got number 19, number 21, and number 24 wrong.
D+D+D+D+D = 5D, not D⁵
S+S+S = 3S, not S³
N+N+N+N = 4N, not N⁴
Remember, repeated addition, (n+n+n) is 3n. Repeated multiplication, (n•n•n) is n³.
Hope this helps.
Answer:
No they are not parallel.
Step-by-step explanation:
You have to figure out the slopes of each set of points. For (-5,3) and (-6,-1) the slope is 4 and for (3,-2) and (2,-7) the slope is 5. You can only have parallel lines if the slope is same and the y- ints are different. Here the slopes aren't same.
Sorry If im wrong. Hope this helps!
She would earn $7.80 per day
Answer:
To get your answer, you need to fix the typos, but the answer is gonna be the closest thing to 13/42 if that is the real value
Step-by-step explanation:
none of these answers are anywhere near to 13/42