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kkurt [141]
3 years ago
8

a rectangle has a length of 5 cm and width 3 cm. a similar rectangle has length 7.25 cm what is the width in cm of this rectangl

e
Mathematics
2 answers:
zheka24 [161]3 years ago
4 0
First Rectangle Area: 5 * 3=15
Second rectangle's width: 15/7.5=2
I think this is the ans 
OleMash [197]3 years ago
4 0
For my answer it was is 3
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HELP!!! STATS!!!
Vadim26 [7]

Answer:

The 99% confidence interval is   165.776  <  \mu <  180.224  

Step-by-step explanation:

From the question we are told that

     The sample size is  n  = 100

     The sample mean is  \=  x  =  173 \  days

      The population standard deviation is  \sigma =  28 \ days  

From the question we are told the confidence level is  99% , hence the level of significance is    

      \alpha = (100 - 99 ) \%

=>   \alpha = 0.01

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } = 2.58

Generally the margin of error is mathematically represented as  

      E = Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }

      E = 2.58  *  \frac{28 }{\sqrt{100} }

=>    E = 7.224

Generally 95% confidence interval is mathematically represented as  

      \= x -E <  \mu <  \=x  +E

=>     173 -7.224  <  \mu < 173 + 7.224    

=>     165.776  <  \mu < 180.224  

     

4 0
3 years ago
Mr. Swanson has $350 to order music books for the new school year. Music books cost $10 each and come in packages of 5. Mr. Swan
Talja [164]
Answer:
$300

Explanation:
$10(cost of 1 book) x 5(how many comes in packages) = 50 ( total cost of 1 package)
Mr. Swanson ordered 6 so...
$50 x 6 = $300
Mr. Swanson would have $50 let's over
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3 years ago
I need help!!<br> I don’t get it!!
Len [333]

Answer:

170

Step-by-step explanation:

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3 years ago
4x-2= -14<br> what value of x makes 4x-2= -14 true?
ad-work [718]

-6

<u>4 x (-6)</u> - 2

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=-14

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4 years ago
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Please help I will give brainly
Angelina_Jolie [31]

Answer:

The slope of the line is 2.

This means that Jan runs 2 laps every 1 minute.

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