Math Fun II

[Ellie Williams]

Hey guys! Since some of you guys seemed to enjoy the previous Math Fun, I decided to make another one!

Rules:
-You may use a scientific calculator, pencil, eraser, and paper to help you solve the problems. Nothing more than that please.
-Try to do each problem yourself.
-Show your work if possible.
-Have fun! This is also a good opportunity to practice your skills :).

Spoiler: 1

Spoiler: 2

Spoiler: 3

Just for clarification, it's 1 mile linear distance.

Spoiler: 4

Spoiler: 5

C, γ, m, ω, and δ are constants.

Spoiler: 6

Spoiler: 7

Spoiler: 8

Spoiler: BONUS

 

[Komodо]

Beethoven would probably be the only one who doesn't dislike Justin Bieber, because he couldn't hear before he died and that's why he can't hear his awful voice. Btw, I like the fact that JB has been pushed off a cliff <:

 

[Ellie Williams]

Beethoven would probably be the only one who doesn't dislike Justin Bieber, because he couldn't hear before he died and that's why he can't hear his awful voice. Btw, I like the fact that JB has been pushed off a cliff <:

That wasn't my idea. Google "Justin Bieber was thrown off a cliff" ( ͡° ͜ʖ ͡°).

 

[packta]

Gave it a good shot in notepad :p Curious about the answers to 4 and 7.

Spoiler: Answer 1

0

Spoiler: Answer 2

10000/25 = 400
400 - 12*2 = 400 - 24 (as 12 either side would give 25 consecutive even numbers)
Final answer: 376

Spoiler: Answer 3

No. of semi-circles in 1 mile = 5280/40 = 132
Total distance ran = 1/2 circumference of circle * 132 = π*(40/2)*132
= 8293.80460548ft
= 1.57079632679mi
As v=d/t, then t=d/v so t=1.57079632679/5 = 0.31415926535h
= 18 minutes and 51 seconds

Spoiler: Answer 4

Yeah nah.

Spoiler: Answer 5

g(t) = -wCe^(-y/2m)sin(wt-G)

Spoiler: Answer 6

dV/dt = 18
V = 18t+8
V = x^3
x = V^(1/3)
SA = 6x^2
SA = 6V^(2/3)
SA = 6(18t+8)^(2/3)
dSA/dt = 72/(18t+8)^(1/3)

Spoiler: Answer 7

Yeah nah.

Spoiler: Answer 8

dv/dt = 9.8 - v/m
v = 9.8t - vt/m
v(1+t/m) = 9.8t
v = 9.8t/(1+t/m)
v = 9.8*5/(1+5/4)
v = 21.78ms^-1

Spoiler: Answer BONUS

If by length you mean how far he drops vertically, then 100m
If you mean the horizontal distance travelled then;
0 = -x^2+100
x = [+/-]sqrt(100)
x = [+/-]10m

 

[Deeds]

I don't know how to do this type of math ._.
I'm only going into 8th grade, like plz.
I am taking Algebra in 8th grade though!

 

[Facelurite]

I disagee with this suggestionz -1 @staf lok pls snwhhqjkanakamma

 

[Caaaaarman]

Math:
Mental Abuse to Humans.