Answer:
Read below.
Step-by-step explanation:
A perfect cube is a number cubed (If that makes sense). Such as 3³ will equal a perfect cube because it's being multiplied by itself 3 times. 3×3×3=9. It will work for any whole number. You can check if a given number is a perfect cube by using the cube root (![\sqrt[3]{x}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%7D)
).
Hope it makes sense!
The length of the shortest side would be 10in because x = 3.
3 + 7 = 10
5 x 3 + 6 = 21
5 x 3 - 3 = 12
10 + 21 + 12 = 43
10<12<21
So 10 would be your answer :)
It's value is 20 :) in the tenths place
you can also use a place value chart :)
Answer:
GCF: 20
Step-by-step explanation:
The thing you want to do is factor both numbers down to their lowest primes.
40:2 * 2 * 2 * 5
60:2 * 2 * 5 * 3
Now underline what is in both sets of primes. I'll bold them. The number that is bolded comes from 2 * 2 * 5 which is 20
The highest common factor is 20
