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3 years ago

0.423 rational or irrational

Mathematics

2 answers:

alexgriva [62]3 years ago

7 0

It would b rational...hope this helps

-BARSIC- [3]3 years ago

4 0

Rational because<span>A rational number is one that can be written as a fraction, with whole numbers in the numerator and the denominator. </span>

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The table shows the number of hours that Kaitlyn worked last week.

Inessa05 [86]

Answer:

Step-by-step explanation:

5 1/2 , 6 3/4 , 4 2/3

Convert to decimals

5.5 , 6.75 , 4.67

Add

16.92

She worked 16.92 hours

Convert to mixed fraction

Hope this helps :)

6 0

3 years ago

Round 5,784 to the nearest ten

viva [34]

Answer:

I think you might mean 5.784 and if that is the case it would be 5.8

Step-by-step explanation:

5.8 would be the answer because 8 is closer to 10 than 0 so 7 would be rounded up to 8

6 0

3 years ago

You have two biased coins. Coin A comes up heads with probability 0.1. Coin B comes up heads with probability 0.6.However, you a

Andrews [41]

Answer:

The probability that our guess is correct = 0.857.

Step-by-step explanation:

The given question is based on A Conditional Probability with Biased Coins.

Given data:

P(Head | A) = 0.1

P(Head | B) = 0.6

<u>By using Bayes' theorem:</u>

$P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}$

We know that P(B) = 0.5 = P(A), because coins A and B are equally likely to be picked.

Now,

P(Head) = P(A) × P(head | A) + P(B) × P(Head | B)

By putting the value, we get

P(Head) = 0.5 × 0.1 + 0.5 × 0.6

P(Head) = 0.35

Now put this value in $P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}$ , we get

$P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}$

$P(B|Head) = 0.6 \times \frac{0.5}{0.35}$

$P(B|Head) = 0.857$

Similarly.

$P(A|Head) = 0.857$

Hence, the probability that our guess is correct = 0.857.

7 0

4 years ago

Kelli is walking to raise money for a local shelter. A neighbor gives her $20. Her uncle donates $2 per kilometer. Write an equa

stiv31 [10]

Y=20+2x I think this is right

4 0

3 years ago

Tell whether the ratios are equivalent: 3 days to 4 hours and 9 days to 12 hours. show your work.

bonufazy [111]

Answer:

yes.

Step-by-step explanation:

write these ratios as fractions to see if they are proportional

3/4

9/12 -------> this can be simplified by dividing by 3

= 3/4

therefore yes they are equivalent

5 0

3 years ago