(5x²y³)²
(5x²y³)(5x²y³)
25x⁴y⁶
Answer:
Mean speed is 55.7 mph.
Step-by-step explanation:
The provided frequency distribution is:
Speed Cars
30-39 4
40-49 19
50-59 50
60-69 15
70-79 12
The formula to compute the mean for the grouped data is:
![\bar{X} =\frac{\sum(mf)}{\sum(f)}](https://tex.z-dn.net/?f=%5Cbar%7BX%7D%20%3D%5Cfrac%7B%5Csum%28mf%29%7D%7B%5Csum%28f%29%7D)
Here, m is mid point and f is frequency.
The mean speed can be computed as:
Thus, the mean speed is 55.7 mph.
Answer:
x and y = 0
the question looks weird and almost wrong because when you subtract the equations, you are left with nothing
Step-by-step explanation:
Multiply the top equation by 3 to make the -x a -3x instead.
Then do the top equation - the bottom equation
At this point you should be left with x
Answer:
-3 is not a solution
Step-by-step explanation:
Subtstitute the possible solution into the equation and see if it is true
3x -5 = 4+2x
3(-3) -5 = 4+2(-3)
-9-5 = 4-6
-14 = -2
This is not true so -3 is not a solution
Answer:
1 = Yes
2 = NO
Step-by-step explanation: