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aleksandrvk [35]
3 years ago
11

Please solve the attached problem and chose from the answers below.

Mathematics
2 answers:
DanielleElmas [232]3 years ago
4 0

Answer:

C

Step-by-step explanation:

\frac{5}{4t}-\frac{t+4}{10t^2}=\frac{5\left(10t^2\right)-4t\left(t+4\right)}{40t^3}=\frac{2t\left(25t-2\left(t+4\right)\right)}{40t^3}=\frac{\left(25t-2t-8\right)}{20t^2}=\frac{23t-8}{20t^2}

Charra [1.4K]3 years ago
3 0

For this case we must find the value of the following expression:

\frac {5} {4t} - \frac {t + 4} {10t ^ 2}

So, we have:

\frac {5 * 10t ^ 2-4t (t + 4)} {4t * 10t ^ 2} =\\\frac {50t ^ 2-4t ^ 2-16t} {40t ^ 3} =

We add similar terms:

\frac {46t ^ 2-16t} {40t ^ 3} =

We simplify dividing the numerator and denominator by 2:

\frac {23t ^ 2-8t} {20t ^ 3} =

We factor the numerator:

\frac {t (23t-8)} {20t ^ 3} =

We simplify:

\frac {23t-8} {20t ^ 2}

Answer:

Option C

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