Answer:
h = f(t) = -15cos((π/5)t) +20
Step-by-step explanation:
If you like, you can make a little table of positions:
(t, h) = (0, 5), (5, 35)
Since the wheel is at an extreme position at t=0, a cosine function is an appropriate model:
h = Acos(kt) +C
The amplitude A of the function is half the difference between the t=0 value and the t=5 value:
A = (1/2)(5 -35) = -15
The midline value C is the average of the maximum and minimum:
C = (1/2)(5 + 35) = 20
The factor k satisfies the relation ...
k = 2π/period = 2π/10 = π/5
So, the function can be written as ...
h = f(t) = -15cos((π/5)t) +20
Answer:
The sum of three times a number and 4
Answer:
3/20
Step-by-step explanation:
Let 20/20 represent the whole bottle of green paint.
If Robin used 17/20 of this paint, then Josie must have used:
20/20 - 17/20, or 3/20, of the bottle of paint.
Answer:
-7
Step-by-step explanation:
Let the number be x
So we get equation : 3x + 8 = -13
Thus, 3x = -13-8 = -21
So, x = (-21)/3
Hence the required number is -7
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: Lets say that each tower can be build with 1 block, then you can build 257 towers
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆