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sergij07 [2.7K]

3 years ago

8

Why do you have to show your work

2 answers:

swat323 years ago

8 0

In order to help explain how you came to your answer. It also helps when marking or reviewing because it's easier to find any mistakes

erica [24]3 years ago

7 0

In a problem you need to show your work because you need to show what strategies or equations, evidence to your answer. In math you show your work for that. In Ela you show work to give text evidence to your statement. Sometimes showing your work isn't that annoying. Sometimes it is don't worry I feel you.

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12 * 5 is 60.
Actual distance: 60 miles.

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3 years ago

In the whole number 2,098,753,124 what is the place value of the digit 9

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90,000,000 is the answer

Step-by-step explanation:

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3 years ago

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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

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

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

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

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

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

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

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

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

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3 years ago

Nico can do 42 push-ups in 3 minutes.

Alchen [17]

Step-by-step explanation:

Hey there!

It is said we need to find the unit rate.

What we can do is apply Unitary Method.

3 minutes = 42 push ups

1 minute = $\sf{\bf{\dfrac{42}{3}}}$

<u>So, 12 push ups per minute is the unit rate.</u>

In 5 minutes, he will do 12×5 = <u>60 push ups!</u>

Hope it helps :)

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2 years ago

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Gnesinka [82]

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3 years ago

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