Answer:
7
Step-by-step explanation:
x * x = 7x
7 x 7 = 7 x 7
49 = 49
so if x is 7, the equation is true...
P=(15x-2+4x+7)2=(19x+5)2=38x+10
-2 is the answer! Remove the parentheses then move the terms. After that, collect the terms and calculate. Lastly, divide both sides.
15.375/15.125 x 100 =~98.4
The ~% is 98.4%
Error = ~2.6%
Part B
Be a near amount. Can be