Answer:
Examples of infrastructure include transportation systems, communication networks, sewage, water, and electric systems. Projects related to infrastructure improvements may be funded publicly, privately, or through public-private partnerships.
Answer:
Sheave wheel and hoist cable
Explanation:
The sheave wheel is a pulley wheel that sits above the mine shaft. The hoist cable passes over the sheave wheel and then down the shaft of the mine. The sheave wheel reduces the sliding friction of the mine cable. The head frame is the structure that supports the sheave wheel.
Answer:
true is the correct answer
Answer:
See Explaination
Explanation:
class MagicSquare():
def __init__(self,side):
self.side=side
self.two_dimension=[]
for row in range(1,side+1):
row_line=[]
for col in range(1,side+1):
row_line.append(0)
self.two_dimension.append(row_line)
def display(self):
row=0
col=int((self.side-1)/2)
for i in range(1,self.side**2+1):
self.two_dimension[row][col]=i
row-=1
col+=1
if row==-1:
row=self.side-1
if col==self.side:
col=0
if self.two_dimension[row][col]==0:
continue
else:
row+=1
if row==self.side:
row==0
for line in self.two_dimension:
for num in line:
print("{0:>3}".format(num),end=" ")
print()
def main():
for i in range(1,14,2):
square=MagicSquare(i)
square.display()
print("----------------------------------------------------")
if __name__ == '__main__':
main()
Answer:
Answered below
Explanation:
Data values in a program are held in variables. Variables are like containers for holding different types of data. A variable can be identified depending on the kind of data it holds. Variables can hold data types of integers, strings, arrays, lists, sets, Boolean etc. They hold unique data types and a can not hold different data types. Different rules exist for naming variables in different programming languages. A variable name should start with lowercase letters and be descriptive of the data it holds.
