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Romashka-Z-Leto [24]
3 years ago
14

Is 3.80012569923.... a irrational or rational ?

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
5 0

We can't tell from the information you've given.

With the dots at the end, you showed that there's more
to the decimal.  But you didn't say how much more.

-- If the decimal EVER ends, even after a billion places,
then it's rational.

-- If it repeats, then it's rational.  That .80012569923 may repeat,
or part of it, like the 9923, may repeat, or the whole thing may be
part of some larger bunch that repeats.  We don't know.

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SashulF [63]
For this case we have the following expression:
 h (t) = - 16t ^ 2 + 122t + 10
 We look for the maximum of the function, for this, we derive:
 h '(t) = - 32t + 122
 We match zero:
 -32t + 122 = 0
 We cleared t:
 t = 122/32
 t = 3.8125 s
 Then, the maximum height will be:
 h (3.8125) = - 16 * (3.2185) ^ 2 + 122 * (3.2185) +10
 h (3.8125) = 236.92 feet
 Answer:
 
It takes the boulder to reach maximum height about:
 
t = 3.8125 s
 
the boulders maximum height is:
 
236.92 feet
3 0
3 years ago
3. A savings account has a 3% interest rate. (a) Complete the ratio table shown. Show your work. Deposit ($) 100 50 300 Interest
blsea [12.9K]
We all know, savings account have "Compound Interest"

So, Here, On $100 deposit, amount of Interest = $12

So, for $50, it would be: $6

Then, for $300, it is: $36

b) If you deposit $200, then balance after 1 year, 
A = P(1 + r)^t

A = 200(1 + 0.03)^1

A = 200(1.03)
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Now, Balance with $150
A = 150 (1 + 0.03)^1
A = 150(1.03)
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Difference = 206 - 154.5 = $51.5

In short, Your Answer would be: $51.5

Hope this helps!

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Answer:

Step-by-step explanation:33

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What is the equation of the line with a slope of 2 through the points 2,4
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Answer:

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Step-by-step explanation:

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4=2*2 + b

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4 0
2 years ago
1.Mike buys an item with a price of $15 and uses a 10% off coupon. How much does he save by using this coupon?
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Answer:

14.31

Step-by-step explanation:

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3 years ago
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