Number 21 is the first answer a.) 8
Answer:
I think they are shown on the right next to your profile
Step-by-step explanation:
Answer:
7.21 m is the total length you get when you add the length of the three pieces
Brainly says you need the following points
- The pattern is min-zero-max-zero-min, which is the pattern for a cosine function of the form y = acos(x) + k, but is reflected over the x-axis (so a < 0).
- The amplitude is |a|, so a = –1 and |a| = 1.
- The midline is exactly between the max and the min, y = (6 + 8)/2 = 7, so k = 7.
- The equation is y = –cos(x) + 7.
