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blagie [28]
3 years ago
11

I don't get what f(-10) means

Mathematics
1 answer:
m_a_m_a [10]3 years ago
8 0
It wants you to complete the function using -10 for x. . .

e.g: f(x) = 1/2x + 2

f(-10) = 1/2(-10) + 2
f(-10) = 3
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Suppose r varies directly with the square of m and inversely as s. If r= 12 when m = 6 and s=4, find r when m = 4 and s 10
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Answer:

r=\frac{32}{15}

Step-by-step explanation:

If r varies directly with the square of m and inversely as s,

then r=\frac{km^2}{s} where k is some constant

Given r = 12 when m = 6 and s = 4:

       r=\frac{km^2}{s}

⇒    12=\frac{k6^2}{4}

⇒ \frac{12\times4}{6^2} =k

⇒     k = \frac{4}{3}

Therefore, substituting the found value of k into the original equation: r=\frac{4m^2}{3s}

Find r when m = 4 and s = 10:

   r=\frac{4m^2}{3s}

⇒ r=\frac{4\times4^2}{3\times10}

⇒ r=\frac{32}{15}

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3 years ago
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