The number of combinations are 9. Its really simple, just do 3 x 3 = 9
The membrane fluidity would be impaired and the neuron would undergo apoptosis . and the osmosis would be disrupted and the neuron would be unable to communicate. Also many chemicals would not be able to move into and out of the neuron, disrupting communication.d. the neuron would be deprived of oxygen and would undergo necrotic death.
Answer: 
The cable car’s elevation will be 750 feet after 15 minutes or 65 minutes.
Step-by-step explanation:
Given: A cable car begins its trip by moving up a hill. As it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet.
Then, total time taken to reach the peak = (Distance) ÷ (speed)
= (2,000 feet) ÷ ( 50 feet/minute)
= 40 minutes
Then, as the car moves down to the hill’s base, its elevation drops at the same rate.
The equation that models the cable car’s elevation, e, after t minutes is
e= (constant rate)|t- time to reach peak |+ Peak's height

When the cable car’s elevation will be 750 feet after minutes, then we have

Time cannot be negative, so the cable car’s elevation will be 750 feet after 15 minutes or 65 minutes.
Answer: 6 ways
there are 6 ways to move from one corner of a cube to the diagonally opposite corner in three moves
Step-by-step explanation:
Given that;
-It's restricted to three moves.
-It has to move from one diagonal to its opposite diagonal.
-it can only move through the edges.
Hence, in the first move.
We have three(3) different options that is three different possible moves that can lead us to the final destination.
The second move.
We have two (2) different possible moves each
The last move
We have just one(1) possible move.
To get the total possible ways, we will multiply the possible options for each move.
Move 1 = 3 options
Move 2 = 2 options each
Move 3 = 1 option each
3 × 2 × 1 = 6 ways
Answer: 27/28 or 0.9642857
Step-by-step explanation:
5/7 + 1/4 = 5 · 4/7 · 4 + 1 · 7/4 · 7 = 20/28 + 7/28 = 20 + 7/28 = 27/28