Answer:
Step-by-step explanation:
When multiplying or dividing two negatives, multiply or divide the normal way and make your answer positive. Two negatives make a positive.
Answer: ![20\ cm](https://tex.z-dn.net/?f=20%5C%20cm)
Step-by-step explanation:
The first step to solve the exercise is to make the conversion from meters to centimeters.
Since
, then the dimensions of the wood board in centimeters are:
![Lenght=100\ cm\\\\Width=60\ cm](https://tex.z-dn.net/?f=Lenght%3D100%5C%20cm%5C%5C%5C%5CWidth%3D60%5C%20cm)
Now, you must find the Greatest Common Factor (GCF). The steps are:
- Descompose 100 and 60 into their prime factors:
![100=2*2*5*5=2^2*5^2\\60=2*2*3*5=2^2*3*5](https://tex.z-dn.net/?f=100%3D2%2A2%2A5%2A5%3D2%5E2%2A5%5E2%5C%5C60%3D2%2A2%2A3%2A5%3D2%5E2%2A3%2A5)
- Multiply the commons with the lowest exponents:
![GCF=2^2*5\\\\GCF=4*5\\\\GCF=20](https://tex.z-dn.net/?f=GCF%3D2%5E2%2A5%5C%5C%5C%5CGCF%3D4%2A5%5C%5C%5C%5CGCF%3D20)
Therefore, the side lenght of each square must be:
![s=20\ cm](https://tex.z-dn.net/?f=s%3D20%5C%20cm)
2860 times .12 equals $343.20
When you simplify the square root of a number, you are looking for factors of the number that are perfect squares that you can remove from under the radical. For example sq root of 8... it's not a perfect square but factors of 8 include 2 x 4... 4 is a perfect square so we can take it out of the radical by taking it's square root. Now you are left with 2* sq root of 2.
For sq root of 48
48 = 12 x 4
12 = 3x4 so we can say 48 = 3x4x4
so... sq root 48 = sq root 3x4x4
we have two 4's under the radical. Sq root x^2 = x so sq root 4^2 is 4
Pull it out from the radical and we are left with 4 * sq root 3
Answer:
345600000000 and 670
Step-by-step explanation: