a. Rounding to the nearest hundredth means that we only have access to numbers with 2 decimal digits. Our number is enclosed between 45.28 and 45.29. Which one is a better approximation? Well, the one who's closer! To tell how "close" two numbers are, just compute the absolute value of their difference:
So, the distance from 45.29 is less than the distance from 45.28, which makes 45-29 the best approximation.
b. Rounding to the nearest integer means that we can't use decimal digits at all. By the same logic of case (a), we have to choose between 27 and 28: we have
Which makes 27 the best approximation
c. Rounding to the nearest tenth means that we can only use one decimal digit. Again, the logic is always the same: the number lies between 0.2 and 0.3, and we use the same test to check which is a better approximation:
Which makes 0.2 the best approximation.
4 miles
Step-by-step explanation:
if you travel 8 in 1 hour just cut it in half
8 * 1/2 = 4
Answer: D. exponential growth
Step-by-step explanation:
Answer:
The filled table for each equation by using the exact values in the table is
10x+2y=56
x y
______________________
0 28
0
________________________
8x+3y=49
x y
_________________________
0 
0
_________________________
Step-by-step explanation:
Given equations are 10x+2y=56 and 8x+3y=49
To fill the table for each equation by using the exact values in the table :
10x+2y=56
put x=0 in above equation we get
10(0)+2y=56
2y=56
Therefore (0,28)
put y=0 in the given equation 10x+2y=56 we get
10x+2(0)=56
10x=56
Therefore (,0)
10x+2y=56
x y
_________________________
0 28
0
__________________________
For
8x+3y=49
put x=0 in above equation we get
8(0)+3y=49
3y=49
Therefore (0,)
put y=0 in the given equation 8x+3y=49 we get
8x+3(0)=49
8x=49
Therefore (,0)
8x+3y=49
x y
_________________________
0
0
________________________
