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3 years ago

Which statement best describes the equation x^5+x^3-14=0

Mathematics

1 answer:

oee [108]3 years ago

5 0

<span>The equation is not quadratic in for because it cannot be written as a second degree polynomial</span>

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I need help and can you plz tell me the answer

Sav [38]

The least common multiple of 4 and 7 is 28 I think sorry I haven't been in school for a week

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3 years ago

Find the inverse of the following function. Then prove they are inverses of one another.

solmaris [256]

Answer: $\dfrac{x^2+1}{2}$

Step-by-step explanation:

Given

$f(x)=\sqrt{2x-1}$

We can write it as

$\Rightarrow y=\sqrt{2x-1}$

Express x in terms of y

$\Rightarrow y^2=2x-1\\\\\Rightarrow x=\dfrac{y^2+1}{2}$

Replace y be x to get the inverse

$\Rightarrow f^{-1}(x)=\dfrac{x^2+1}{2}$

To prove, it is inverse of f(x). $f(f^{-1}(x))=x$

$\Rightarrow f(f^{-1}(x))=\sqrt{2\times \dfrac{x^2+1}{2}-1}\\\\\Rightarrow f(f^{-1}(x))=\sqrt{x^2+1-1}\\\\\Rightarrow f(f^{-1}(x))=x$

So, they are inverse of each other.

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3 years ago

Logan drew 8 hearts and 14 circles. What is the ratio of hearts to all shapes?

lbvjy [14]

Answer:

<h2>ratio is</h2>

Step-by-step explanation:

<h2>4:7 your answer is like this . follow me</h2>

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2 years ago

What are the factors of m^2-12m+20

Juli2301 [7.4K]

Answer:

(m - 10)(m - 2)

Step-by-step explanation:

We need 2 numbers whose product is + 20 and whose sum = -12. They are -10 and -2. These go into the 2 parentheses:

(m - 10)( m - 2).

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3 years ago

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Trigonometry word problems

astraxan [27]

From a point on the ground 47 feet from the foot of a tree, the angle of elevation of the top of the tree is 35º. Find the height of the tree to the nearest foot.

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2 years ago