Answer:
B
Step-by-step explanation:
x/5 + 2/3x
first you multiply both denominator. 
this will be you denominator unless you can simplify it.
denominator=5 x 3X = 15X
now you times both denominator with the opposite numerator.
e.g. 5 x 2 and X x 3X.
=10 and 3X^2
now you and both numerators which is 3X^2 + 10
so the answer is b
 
        
                    
             
        
        
        
If the bases ar same, assume exponents are same
if
x^z=x^m
assume z=m
so 
base is both 7 therefor
3x+5=1-x
solve 
add x
4x+5=1
minus 5
4x=-4
divide 4
x=-1
        
             
        
        
        
8x²+3y²=24
8x²+3y²-24=0
Let x be 1 ,
Therefore
8+3y²-24=0
3y²-16=0
3y²=16
y²=16/3
y=4/1.7
y=40/17
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Answer:
3 units
Step-by-step explanation:
Hello
The sphere volume is:
(4/3)*Pi*r^3
then
36 = (4/3)*Pi*r^3
36/[(4/3)*Pi] = r^3
8,5 = r^3
r = 3
Best regards