3 years ago

Find the functions domain

Mathematics

1 answer:

horrorfan [7]3 years ago

4 0

The domain is the x side or the x-axises.

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How would you find the zero of f (x)=16x^4 - 9x^2

krok68 [10]

$f (x) = 16x ^ 4 - 9x ^ 2 \\ \\16x ^ 4 - 9x ^ 2=0\\ \\x^2(16x^2-9)=0 \\ \\x^2 =0 \ \ or \ \ 16x^2-9=0\\ \\ x=0 \ \ or \ \ (4x-3)(4x+3)=0\\ \\ x=0 \ \ or \ \ 4x-3=0 \ \ or \ \ 4x+3 =0\\ \\x=0 \ \ or \ \ 4x=3 \ \ / :4 \ \ or \ \ 4x=-3\ \ / :4 \\ \\ x=0 \ \ or \ \ x=\frac{3}{4} \ \ or \ \ x=-\frac{3}{4}$

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3 years ago

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The area of an 20 -cm-wide rectangle is 440 cm. What is its length?

Nataly [62]

Answer:

22cm

Step-by-step explanation:

440÷20

8 0

4 years ago

Find the surface area of the triangular prism shown below

Varvara68 [4.7K]

Answer:

174 ft^2

Step-by-step explanation:

$area = 2 \times 8 \times 3 + 2 \times 7 \times 5 + 7 \times 8 \\ = 48 + 70 + 56 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = 174 \: {ft}^{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$