Answer:
7 hours
Step-by-step explanation:
78-15=63
63 divided by 9= 7
It works because even if the numbers are broken apart, you are still multiplying the numbers by their values, it's only different because once broken apart, it's in expanded form instead of standard form. It also makes multiplication easier since you don't have to deal with such large numbers.
Answer:
√9/√13=5
√10-3r=r
Step-by-step explanation:
this must be the answer
For the first one (aka 7) you would write 10² wich is the same as 10×10 and so the answer is 100
For the second one (aka 8) you would write 3×3×3×3×3×3×3×3×3 and the answer is 486 square miles
Answer:
B. The range of the function is all real numbers
