Answer:
A =256 cm^2
Step-by-step explanation:
The perimeter of a square is 64 cm
P = 4s where s is the side length
64 = 4s
Divide by 4
64/4 = 4s/4
16 =s
The side length is 16 cm
The area of a square is
A = s^2
A = 16^2
A =256 cm^2
<span>Rounded numbers are easier to work with in your head. They are only approximate. An exact answer can not be obtained with these numbers. Sometimes an exact answer is not required.To round numbers to the nearest ten thousand, make the numbers whose last four digits are 0001 through 4999 into the next lower number that ends in 0000. For example 54,424 rounded to the nearest ten thousand would be 50,000. Numbers that have the last four digits of 5000 or more should be rounded up to the next even ten thousand. The number 78,988 rounded to the nearest ten thousand would be 80,000.this might help you understand
</span>
4(9*11/2)
=198
198+9*9
198+81
=279 inches
279 inche= 23.25square foot
23.25*0.112*<span>10,000
</span>=<span>26040
</span>
Answer:
6. 10^3 ten to the third power
7. 10^5 ten to the fifth power
8. not sure
10. 60
19. 20
11-13: not sure
and i can't understand the rest
Step-by-step explanation:
