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3 years ago

5 and 1/4 divided by negative 6 simplify

Mathematics

2 answers:

Zanzabum3 years ago

8 0

Answer:

-0.875

Step-by-step explanation:

5 1/4 = 5.25

5.25/ -6 = -0.875

Sindrei [870]3 years ago

7 0

Answer:

$\frac{7}{8}$

Step-by-step explanation:

concert the mixed number to an improper fraction

$\frac{21}{4} \div ( - 6)$

dividing a positive and negative equals a negative: (+)÷(-)= (-)

$- \frac{21}{4} \div 6$

reduce the number with the gretest common factor 3

$- \frac{7}{4 } \times \frac{1}{2}$

multiply the fraction

$- \frac{7}{8}$

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ATCs are required to undergo periodic random drug testing.

aleksandr82 [10.1K]

Answer:

The responsess to the given question can be defined as follows:

Step-by-step explanation:

$P(medication\ used) = 0.007 \\\\P( drug \not\ used ) = 1 - 0.007 = 0.993\\\\P(test\ positive | medication \ used) = 0.96 \\\\ P(test \ negative | medication \ used) = 1 - 0.96 = 0.04\\\\$

$P(Point | Non-used\ medication )=0.93\\\\ P(Point |No\ medication ) = 1 - 0.93 = 0.07$

As per the given info we draw the tree diagram which is defined in the attachment file.

$P ( test \ is\ positive ) = P( medication \ used ) \times P( Test \ positive | medication \ used ) + P( medication not \ used ) \times P( Test\ positive | medication \ not \ used )$

$= ( 0.007 \times 0.96 ) + ( 0.993\times 0.07 )\\\\= 0.0762$

$P( medication \ used | test\ positive )= \frac{\textup{P( medication used ) *P( Test positive given medication used )}}{\textup{P( medication used )}}$

$= \frac{( 0.007\times 0.96 )}{0.0762}\\\\= 0.0882$

8 0

2 years ago

The shop declare a discount of 20% and later a discount of 15% after

Zolol [24]

Let, the original amount = x
First discount = x * 0.20 = 0.20x

Amount after first discount = x - 0.20x = 0.80x
Second discount = 0.80x * 0.15 = 0.12x

Amount after second discount = 0.80x - 0.12x = 0.68x
Difference would be: x-0.68x = 0.32x

So, Your Answer would be 32%

Hope this helps!

8 0

3 years ago

What reaction did Pocahontas's people have to her helping the Jamestown colonists?

Scrat [10]

Answer:

They were very angry about her helping the colonists.

Step-by-step explanation:

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2 years ago

Find the probability that the family of 3 children will have exactly 2 girls

SOVA2 [1]

Well if we're talking genetics included in the answer its 3/8