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4 years ago

Can I get some help please?

Mathematics

2 answers:

stich3 [128]4 years ago

6 0

X= 6
because 6 x 6 x 6 = 216

Anna [14]4 years ago

4 0

X=-6

Hope I have been of assistance!

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Stells [14]

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Volume : pi*radius^2*height=pi*1.5^2*9=20.25pi~64 cm^3

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4 years ago

Yahoo creates a test to classify emails as spam or not spam based on the contained words. This test accurately identifies spam (

Amiraneli [1.4K]

Answer and Step-by-step explanation:

The computation is shown below:

Let us assume that

Spam Email be S

And, test spam positive be T

Given that

P(S) = 0.3

$P(\frac{T}{S}) = 0.95$

$P(\frac{T}{S^c}) = 0.05$

Now based on the above information, the probabilities are as follows

i. P(Spam Email) is

= P(S)

= 0.3

$P(S^c) = 1 - P(S)$

= 1 - 0.3

= 0.7

ii. $P(\frac{S}{T}) = \frac{P(S\cap\ T}{P(T)}$

$= \frac{P(\frac{T}{S}) . P(S) }{P(\frac{T}{S}) . P(S) + P(\frac{T}{S^c}) . P(S^c) }$

$= \frac{0.95 \times 0.3}{0.95 \times 0.3 + 0.05 \times 0.7}$

= 0.8906

iii. $P(\frac{S}{T^c}) = \frac{P(S\cap\ T^c}{P(T^c)}$

$= \frac{P(\frac{T^c}{S}) . P(S) }{P(\frac{T^c}{S}) . P(S) + P(\frac{T^c}{S^c}) . P(S^c) }$

$= \frac{(1 - 0.95)\times 0.3}{ (1 -0.95)0.95 \times 0.3 + (1 - 0.05) \times 0.7}$

= 0.0221

We simply applied the above formulas so that the each part could come

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3 years ago

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ICE Princess25 [194]

The range would be [-4, infinity) because range is the y-value. The lowest y-value is -4. The greatest y-value goes up to infinity.

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3 years ago

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Alenkinab [10]

The direct variation equation is y =kx

Lets see:-

4y/4 = x/4
y = 1/4x

Answer: Yes, this is a direct variation

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3 years ago

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gladu [14]

Answer: pretty sure its 2 but it doesn't go back to 0 so not completely sure

Step-by-step explanation:

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3 years ago

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