I suppose you're supposed to convert 100111 from base 2 to base 10. We have

so the missing number is 39.
Answer:
CBA=MNP
Step-by-step explanation:
Side NP=CB
Side NM=AB
then the angles between those sides are equal
Answer:

will give you an explanation if you want tag me on comment.
Answer:
perimeters of the rectangle=p=46.014 metres
Step-by-step explanation:
Given that:
Length (l) = 21 m
Area of rectangle(A) = 42.15 meter-square
Width (w)=?
Required data:
Perimater of Rectangle=p=?
Calculation:
As we know that Area of rectangle=A=l*w
Putting the value we get
42.15 m(square)=(21 m)*w
or w=42.15/21
or w=2.007 m
Now to find perimters of rectangle we know that
p=2(l + w) metres
putting the values
p=2(21+2.007) metres
p=2(23.007) metres
p=46.014 metres
Answer:
1,020
Step-by-step explanation:
25.5 times 40 equals 1,020