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2 years ago

If f(c)=2x^2-x, find f(-4) - f(9)

Mathematics

1 answer:

murzikaleks [220]2 years ago

7 0

Answer:

-13f

Simplify by combining the sum of 4 + 9 with the term "f" and assume integers will be negative.

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2 years ago

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3 years ago

Find the length of the leg a of a right triangle with leg length b = 21.5 inches and the hypotenuse c = 31.9 inches. Use a calcu

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The length of the leg a of the right triangle is obtained by applying the Pythagorean theorem which is given as:

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Thus, we have that:

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Given that b = 21.5 inches and c = 31.9 inches, we now have:

$a^2+(21.5)^2=(31.9^2)$ $a^2+462.25=1017.61$ $a^2=1017.61-462.25$ $a^2=555.36$ $\begin{gathered} a=\sqrt[]{555.36}=23.57 \\ \Rightarrow a=23.6\text{ inches (to one decimal place)} \end{gathered}$

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1 year ago

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