2 years ago

Answer please answer!! I need the answer asap

Mathematics

1 answer:

PSYCHO15rus [73]2 years ago

7 0

Answer:

35 cm

Step-by-step explanation:

is the correct answer

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<img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%20%7B%7D%5E%7B2%7D%20%20%2B%2012x%20%2B%2036" id="TexFormula1" title="f(x)

Mars2501 [29]

Answer:

Step-by-step explanation:

We are given the function:

$\displaystyle f(x) = x^2 + 12x + 36$

And we want to determine the value of:

$\displaystyle f^{-1}(225)$

Let this value equal <em>a</em>. In other words:

$\displaystyle f^{-1}(225) = a$

Then by the definition of inverse functions:

$\displaystyle \text{If } f^{-1}(225) = a\text{, then } f(a) = 225$

Hence:

$\displaystyle f(a) =225 = (a)^2 + 12(a) + 36$

Solve for <em>a: </em>

$\displaystyle \begin{aligned} 225 &= a^2 + 12a + 36 \\ \\ a^2 + 12a -189 &= 0 \\ \\ (a + 21)(a-9) &= 0\end{aligned}$

By the Zero Product Property:

$\displaystyle a + 21 = 0 \text{ or } a - 9 = 0$

Hence:

$\displaystyle a = -21 \text{ or } a = 9$

Thus, f(9) = 225. Consequently, f⁻¹(225) = 9.

In conclusion, our answer is B.

3 0

2 years ago

A rectangle's length is three times its width. Let w denote the rectangle's width. What polynomial represents the rectangle's ar

Nataliya [291]

Width = W
Length = 3 times w = 3W

Area = length x width = 3W * W = 3W^2

8 0

2 years ago

If a man earns 90cents every 3 minutes and he works for a day shift of 5hours how much will he earn in that time?

zavuch27 [327]

Answer:

It is 9000 cents or $90 total for 5 hours

Step-by-step explanation:

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Anna [14]

the answer is D. all of the above

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3 years ago

Question 1 point

ludmilkaskok [199]

Answer:

h = 23 hours

Step-by-step explanation:

Take 143.75 and divide it by 6.25

143.75/6.25 = 23

23 is the answer

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2 years ago

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