Answer:
200
Step-by-step explanation:
First, we know that 1 meter=100 centimeters, so we need to find a common measurement. Lets right it all as meters, so we dont get confused. Then we can find the total area of the floor by multiplying the too side lengths together:
400 centimeters x 200 centimeters= 80000 centimeters!
The total area of the floor is 80,000 centimeters
Now find the area of each tile:
20 centimeters x 20 centimeters= 400 centimeters
Now to find how many of those tiles can fit in that floor, we divide 80,000 by 400.
80,000/400=200
He needs 200 tiles.
Hope this helps!
Answer:
12.56
Step-by-step explanation:
solve using the quadratic formula.
Exact Form:
l
=
√
12.56
2
,
−
√
12.56
2
Decimal Form:
l
=
1.77200451
…
,
−
1.77200451
…
im doing this problem right now---
ok so a1=256 a2=64 a3=15 a4=4... find a9
the sequence divides by 1/4 every term
an=a1*r^n-1
an=(256)*(1/4)^n-1
replace n with 9
A9=(256)*(1/4)^9-1
A9=(256)*(1/4)^8
=(256)*(1/4)
A9=64^8
1/256 or a9= 0.00390625
Answer:
B
Step-by-step explanation:
it is the B because that's 2/5
Answer:
x^2
Step-by-step explanation:
the explanation i do not know please because i am not sure of it.
