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Sonbull [250]
3 years ago
12

Add. (5)/(c-5)+(9)/(c-5)

Mathematics
2 answers:
Nitella [24]3 years ago
8 0

Answer:

The answer would be 14/c-5

Step-by-step explanation:

marta [7]3 years ago
6 0
Since the denominators are already equal to each other, all you have to do is add the numerators.

\frac{5}{c - 5} + \frac{9}{c - 5}  =  \frac{5 + 9}{c - 5} =  \frac{14}{c - 5}
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3 years ago
Let f(x)= 100 / −10+ e^ −0.1x . What is f(−6) ?
bija089 [108]

The value of f(-6) is -12.2

Explanation:

Given that the function f(x)=\frac{100}{-10+e^{-0.1\left(x\right)}}

We need to determine the value of f(-6)

The value of f(-6) can be determined by substituting the value for x=-6 in the function and simplify the function.

Hence, let us substitute x=-6 in the function, we get,

f(-6)=\frac{100}{-10+e^{-0.1\left(-6\right)}}

Let us apply the rule -\left(-a\right)=a , we get,

f(-6)=\frac{100}{-10+e^{0.1\left(6\right)}}

Multiplying the numbers, we get,

f(-6)=\frac{100}{-10+e^{0.6}}

The value of e^{0.6}=1.822

Substituting the value of e^{0.6}=1.822 , we get,

f(-6)=\frac{100}{-10+1.822}

Subtracting the denominator, we have,

f(-6)=\frac{100}{-8.178}

Dividing, we have,

f(-6)=-12.228

Rounding off to the nearest tenth, we have,

f(-6)=-12.2

Thus, the value of f(-6) is -12.2

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