Answer:
Addition
Step-by-step explanation:
Since you are trying to make x the subject, you need to "get rid" of the -2. So, because it is a negative number, you add 2 to make it 0, which is added to both sides, making x = 7.
Hope this helps!
Answer:
1.2 * 10 ^6
Step-by-step explanation:
0.0000012
Move the decimal 6 places to the right
The 6 becomes the exponent in
a* 10^b a must be a number 1 or greater but less than 10
b is the the number of places the decimal moves (+ to the right, - to the left)
000001.2
Then the number becomes 1.2 * 10 ^6
Answer:
7.5 mph
Step-by-step explanation:
Given :
Distance traveled in miles = 10 miles
Time taken = 1 hour 20 minutes
In other to express average speed on terms of miles per hour :
Time in hour = 80 / 60 = 1.333333 hours
Average speed = Distance traveled / time taken
Distance = 10 miles / 1.33333 hours
Distance = 7.5 miles per hour
Heres some info i learend
s but its not complete maybe i guess
Terms. We combine em by adding. The numbers or subtracting the numbers that are multiplied times the radicals.