I really need help on apex in physics can someone help
<span>An ionic crystal consists of ions bound together by electrostatic attraction. The arrangement of ions in a regular, geometric structure is called a crystal lattice. Examples of such crystals are the alkali halides, which include: potassium fluoride (KF)</span>
1) Find g (4) by substituting 4 in place of x in g (x).
g(4) = 4^3 = 64
2) Substitute 64 in place of the x in f(x)
f(64) = 2(64) + 5
= 128 + 5
= 133
Answer:
1.5 hr and 3.5 hr
Step-by-step explanation:
Time in the first part= x
Time in the second part= 5 - x
- 49x+60(5-x)=283.5
- 49x+300-60x=283.5
- 11x=300-283.5
- 11x= 16.5
- x= 16.5/11
- x= 1.5 hr
- and
- 5-x= 5-1.5= 3.5 hr