Step-by-step explanation:
1st picture:
a) Red dots on -5 and 5
b) Red dots on -2 and 2
c) No solution
2nd picture:
8 and -8 because |x| gives the distance between zero to 8
Answer:
length = 47, width = 25
Step-by-step explanation:
L = 2W - 3
2L + 2W = 156
2( 2w -3) + 2W = 156
4w - 6 + 2W = 156
6W = 150
W = 25
L = 2(25) - 3
L = 47
Answer:
There are 4 liters- in a gallon. Why? Well because for a gallon to be completely filled you need 4 liters, nothing less, and nothing more.
Answer:
121
Step-by-step explanation:
32.1 + 32.1 m by 28.4 + 28.4
have a nice day!
Answer:
20,000 particles
Step-by-step explanation:
Here we are given that the amount if radioactive particles has come down to 40,000 from 80,000 in 80 years . Hence by the definition of Half Life,the half life of the item is 80 years.
Now we are asked to guess the number of radioactive particles after 80 years. As we already know that , the half life of material is 80 years , the number of radioactive particles will be reduced to its half in 80 years. Hence the number of radioactive particles after 80 years is 20,000