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viktelen [127]
3 years ago
10

1225=s^2 solve for s

Mathematics
2 answers:
Zigmanuir [339]3 years ago
8 0
You could solve this in one of several ways.  
1) you could find the square root of both sides of the given equation, being sure to write (+.-) in front of the sqrt of 1225, or
2) you could rewrite the given equation as s^2-1225=0 and factor the result
3) you could use logarithms to solve the given equation.
Naddik [55]3 years ago
6 0
<span>s = -35 or s = 35                                                                                                                .   .                         .                                      .             .              .                 .              .                     .            .              .            .            .           .            .                                                    </span>
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In Melanie's Styling Salon, the time to complete a simple haircut is normally distributed with a mean of 25 minutes and a standa
Triss [41]

Answer:

Longer than 27.7 minutes.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 25, \sigma = 4

The slowest quarter of customers will require longer than how many minutes (to the nearest tenth) for a simple haircut?

Longer than the 100 - 25 = 75th percentile of times, which is X when Z has a pvalue of 0.75. So X when Z = 0.675. So

Z = \frac{X - \mu}{\sigma}

0.675 = \frac{X - 25}{4}

X - 25 = 4*0.675

X = 27.7

So

Longer than 27.7 minutes.

8 0
3 years ago
Evaluate5− t/3 when t=12 ​
Novosadov [1.4K]

Answer:

1

Step-by-step explanation:

5 -  \frac{t}{3} =  \frac{5}{1} - \frac{12}{3} = 5 - 4 = 1

or

5 -  \frac{t}{3} =  \frac{5}{1} -  \frac{12}{3} =  \frac{15 - 12}{3} =  \frac{3}{3} = 1

Hope this helps ;) ❤❤❤

8 0
3 years ago
Read 2 more answers
Leon has 3/8 the number of tropical fish that haru has how many times the number of tropical fish Leon has is the number of trop
stealth61 [152]
Let
Haru's number ---> x 
<span>Leon's number ---> (3/8)x 
</span>so
ratio of 
<span>Leon : Haru = (3/8)x : x </span>
<span>= 3/8 : 1 </span>
<span>= 3 : 8
</span>
the answer is
3 : 8
5 0
3 years ago
Read 2 more answers
How do you simplify on number 1?
Dennis_Churaev [7]
Okay. On the part that's not the whole number, see how the top number is BIGGER than the bottom? That means that it's not simplified. In order to make it simplified, you have to take a whole out of the pat that's not a whole number. Since the denominator is 12, the whole is 12/12. So, subtract it from the 13/12.

13/12-12/12=1/12

Now, since you found a whole inside of the fraction you have to add 1 to the whole number.
5+1=6

So, the answer is 6 1/12.

Thanks for the points!
6 0
3 years ago
Tramserran? Do you think you could lend a hand for these questions? You have saved my life on more than one occasion. It's Algeb
Makovka662 [10]

Answer:

#1). 6 , 18 , 54

#2). 5/3 , 14 / 9 , 41/27

#3). 1.5 , 2.5 , 2.5

Step-by-step explanation:

#1).

g(x) = 3x

g(2) = 3 . 2 = 6

g²(2) = 3 . 3 . 2 = 18

g³(2) = 3 . 3 . 3 . 2 = 54

#2).

g(x) = 1/3 x + 1

g(2) = 2/3 + 1 = 5/3

g²(2) = g(5/3) = 5/9 + 1 = 14/9

g³(2) = g(14/9) = 14/27 + 1 = 41/27

#3).

g(x) = -1 ║x - 2 ║ + 3

g(0.5) = -1 (1.5) + 3 = 1.5

g²(0.5) = g(1.5) = -1(0.5) + 3 = 2.5

g³(0.5) = g(2.5) = -1(0.5) + 3 = 2.5

8 0
3 years ago
Read 2 more answers
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