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2 years ago

12

Find the inverse of the following function: f(x) = 5/ square root of x, for x > 0

2 answers:

UNO [17]2 years ago

7 0

The inverse is y = (5/y)^2

You can get this by switching the x and y values and then solving for your new y.

x = 5/sqrt(y) ----> Multiply both sides by sqrt(y)
sqrt(y)*x = 5 ---> divide both sides by x
sqrt(y) = 5/x ---> square both sides
y = (5/x)^2

USPshnik [31]2 years ago

5 0

Answer:

f-1=25/x^2, for x>0

Step-by-step explanation:

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A toy maker claims his best product has an average lifespan of exactly 14 years. A skeptical quality control specialist asks for

slamgirl [31]

Answer:

interval = [17.3948 , 20.6052]

Step-by-step explanation:

given,

random sample (n) = 45

average product lifespan = 19 years

standard deviation = 4 years

confidence interval of 99 % = ?

we know,

t* = qt(1.99/2 + 44 ) = qt(0.995,44)

t* = 2.692

so,

interval

$x = 19 \pm t* \times (\dfrac{s}{\sqrt{n}})$

$x = 19 \pm 2.692 \times (\dfrac{4}{\sqrt{45}})$

$x = 19 \pm 2.692 \times 0.5963$

$x = 19 \pm 1.6052$

interval = [19 - 1.6052 , 19 + 1.6052]

interval = [17.3948 , 20.6052]

4 0

2 years ago

Please help asap! 20 points for helping and show all work

Alona [7]

14x2=28
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6 0

2 years ago

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Julli [10]

Answer:

5z

Step-by-step explanation:

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2 years ago

Read 2 more answers

Which value of x will make the triangles similar by the SSS similarity theorem

masha68 [24]

Answer:

x = 30.

Step-by-step explanation:

For the triangles to be similar corresponding sides must be in the same ratio.

So 50/ 75 = x / 45

75x = 50*45

x = 50* 45/75

= 2 * 45 / 3

= 30. (answer).

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3 years ago

Describe the relationship between x and why in a line with negative slope

bulgar [2K]

In a line with negative slope, as x increase, y decreases.

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2 years ago