4/(m+9)+5/(m^2-81)=
4/ ( m+9) +5 / ( m-9)(m+9)=
4(m-9)/(m+9)(m-9)+ 5 / (m+9)(m-9)=
(4m-36+5)/(m+9)(m-9)=
4m-31/ (m+9)(m-9)
the answer is D
The greatest common factor of 2 and 4 is 2
B. 8+(-10)
Explanation:
8-10 is -2
If you try all the answers, 8+-10=-2
Answer: LCM =96
GCF=4
Step-by-step explanation:
Answer:
Cost per Electricity Unit= $0.61
Cost per Gas Unit= $0.22
Step-by-step explanation:
Suppose,
Cost per Electricity Unit: e
Cost per Gas Unit: g
for the first month condition, equation would be

and for the next month condition, equation would be like

By solving both linear equations simultaneously, we get
e=0.61 and g=0.22