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JulijaS [17]
3 years ago
10

Which is colder -3 -12 -8 -15

Mathematics
1 answer:
8_murik_8 [283]3 years ago
4 0

Answer:

-15 is colder than the others

Step-by-step explanation:

It is colder because it is in the negatives but it also has a higher absolute value

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Kamal is buying supplies for a science lab. He needs a piece
V125BC [204]

Answer:

kamal needs to buy 84 in of wire.

Step-by-step explanation:

multiply the length value by 12:

if he wants 7 feet, and the store only sells it in inches, then we know what a foot is twelve inches so 12x7=84.

hope this helped! :D <3

8 0
3 years ago
Read 2 more answers
How to find the general in an arithmetic sequence
Katen [24]
Hello,

If r is the commun term added.

a_{n}=a_{0}+n*r

4 0
3 years ago
The Center for Medicare and Medical Services reported that there were 295,000 appeals for hospitalization and other Part A Medic
Ymorist [56]

Answer:

(a) 0.00605

(b) 0.0403

(c) 0.9536

(d) 0.98809

Step-by-step explanation:

We are given that 40% of first-round appeals were successful (The Wall Street Journal, October 22, 2012) and suppose ten first-round appeals have just been received by a Medicare appeals office.

This situation can be represented through Binomial distribution as;

P(X=r)= \binom{n}{r}p^{r}(1-p)^{n-r} ; x = 0,1,2,3,....

where,  n = number of trials (samples) taken = 10

            r = number of success

            p = probability of success which in our question is % of first-round

                   appeals that were successful, i.e.; 40%

So, here X ~ Binom(n=10,p=0.40)

(a) Probability that none of the appeals will be successful = P(X = 0)

     P(X = 0) = \binom{10}{0}0.40^{0}(1-0.40)^{10-0}

                   = 1*0.6^{10} = 0.00605

(b) Probability that exactly one of the appeals will be successful = P(X = 1)

     P(X = 1) = \binom{10}{1}0.40^{1}(1-0.40)^{10-1}

                  = 10*0.4^{1} *0.6^{10-1} = 0.0403

(c) Probability that at least two of the appeals will be successful = P(X>=2)

    P(X >= 2) = 1 - P(X = 0) - P(X = 1)

                     = 1 - \binom{10}{0}0.40^{0}(1-0.40)^{10-0} - \binom{10}{1}0.40^{1}(1-0.40)^{10-1}

                     = 1 - 0.00605 - 0.0403 = 0.9536

(d) Probability that more than half of the appeals will be successful =             P(X > 0.5)

  For this probability we will convert our distribution into normal such that;

   X ~ N(\mu = n*p=4,\sigma^{2}= n*p*q = 2.4)

  and standard normal z has distribution as;

      Z = \frac{X-\mu}{\sigma} ~ N(0,1)

  P(X > 0.5) = P( \frac{X-\mu}{\sigma} > \frac{0.5-4}{\sqrt{2.4} } ) = P(Z > -2.26) = P(Z < 2.26) = 0.98809

3 0
3 years ago
Can somone answer this
Sunny_sXe [5.5K]

Answer:

$618

Step-by-step explanation:

$1854 divided by 18 months = $103 per month

$103 x 12 months = $1236 paid in one year.

$1854originally owed - $1236 paid in a year = $618 still owed after one year of payments.

8 0
3 years ago
Read 2 more answers
a) Suppose you are able to download 1 free song to your tablet daily and each additional download costs $0.59. If your monthly b
icang [17]
If 1 additional song costs $0.59, then there would be 26 additional songs downloaded. Because $15.34 divided by $0.59 is 26. 

Let x be the number of songs downloaded.

x = 28 + (15.34/0.59)
x = 28 + (26)
x = 54

You have 54 songs downloaded on your tablet. 

Hope this helps :)
7 0
3 years ago
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