First, you can factor out 625 using the 'tree' method or the 'ladder' method.
625
/ \
5 125
/ \
5 25
/ \
5 5
This means you can say that 625=5 to the power of 4
If your problem requires you to use only whole integers with exponents, then that would be the only way.
If not, then you can also do 625=25*5²
75/25= 3
72/24= 3
7*3= 21
x= 21
I hope this helps!
~kaikers
Answer:
Step-by-step explanation:
The probability is 0.9958.
We first find the z-score associated with both of these values, using the formula
.
For the lower score, we have:
Using a z-table (http://www.z-table.com) we see that the area under the curve to the left of, less than, this is 0.0021.
For the upper score, we have:
Using a z-table (http://www.z-table.com) we see that the area under the curve to the left of, less than, this is 0.9979.
To find the area between these two, we subtract:
0.9979 - 0.0021 = 0.9958
Answer:
x= -59
Step-by-step explanation:
x-31=-90
Adding 31 to both sides we get
x-31+31=-90+31
x=-59