**Answer:**

B)4,989,600

**Step-by-step explanation:**

The letters of 'MATHEMATICS' contains 11 letters.

The following letters repeats twice, TT,MM,AA.

When we talk of distinguishable wasy, we are referring to arrangement without repetition.

Therefore the letters of "MATHEMATICS" can be arranged in distinguishable ways.

The correct answer is B.

Well when she hits the water h=0 so

2t^2-t-6=0 factor

2t^2-4t+3t-6=0

2t(t-2)+3(t-2)=0

(2t+3)(t-2)=0, since t>0

t=2 seconds...

However it should be noted that h(t)=-2t^2+t+6 implies that

v(t)=dh/dt=-4t+1 and

a(t)=dv/dt=-4

Since this is a free fall equation, this would suggest that the acceleration due to gravity is -4, whether that is supposed to be -4ft/s^2 or -4m/s^2, it certainly is not on this planet! :D If it is -4ft/s^2 it could be on the Moon or if it is -4m/s^2 it could be on Mars.

**Answer: **

**y= -7**

**Step-by-step explanation:**

**Answer:**

V = x^3

**Step-by-step explanation:**

Please share the illustration of the cube.

V = x^3 is the only possible correct answer.

**Answer:**

1 to 5

**Step-by-step explanation:**

During this time she has most likely stoped running and taking a break. Since she is not running any more the rate of change is 0 because he is not making any progress.