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3 years ago

What is the slope of the line represented by the equation 3x+4y= 1/2? –4/3 –3/4 3/4 4/3.

Mathematics

1 answer:

Alexxx [7]3 years ago

8 0

Answer:

-3/4 is the slope

Step-by-step explanation:

3x + 4y = 1/2

4y = -3x + 1/2

y = -3/4x + 0.125

m = -3/4

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Answer:

750

Step-by-step explanation:

it is to easey

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3 years ago

Cristina has completed .4 of his test. The test has 40 questions total. if he completes 12 more how many more will he have left?

bixtya [17]

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3 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

Which of the following represents a positive number?

Trava [24]

Answer: OPTION C

Step-by-step explanation:

A positive number must be greater than (>) 0, so lets check which fits this condition.

--------------------------------------------

7.09+(-7.28)=-0.19 NEGATIVE

-12+11.5=-0.5 NEGATIVE

-4.8-(-6.1)=1.3 POSITIVE

-21-(-18.5)=2.5 NEGATIVE

--------------------------------------------

C represents positive number

Hope this helps!! :)

Please let me know if you have any question

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3 years ago

Find x can someone plz help me

Nadusha1986 [10]

Answer:

x=8

Step-by-step explanation:

6 0

3 years ago