I’m pretty sure it’s C if not A
Hi , so the address is Solar system , Milky way , Laniakea.
Answer:
L = 17 m, W = 12 m
Explanation:
W = (L - 5) m
P = 2(L + W) = 58 m
Substitute W = L - 5 from the first equation into the second equation and get L:
2[L + (L - 5)] = 58
2(2L - 5) = 58
2L - 5 = 58/2 = 29
L = (29 + 5)/2 = 17
Then W = L - 5 = 17 - 5 = 12
If the receptors in muscle fibers are thought of as locks, the keys are NEUROTRANSMITTERS.
Receptors are large protein molecules which are located on the surface of neuron. They have to be opened before a neuron is activated, that is why they are considered as lock. The neurotransmitter molecules are considered as the key, because they bind to the neuron and activate neural firing.
