1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jekas [21]
3 years ago
9

if you biked for 7 miles and ran for 3 1/2 miles. what is the unit rate of miles you biked to miles run?

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
5 0
For every biked mile you run half a mile (1/2)

Bike(1Mile) Run(1/2)

You might be interested in
PLEASE HELP AND FAST!!!!!!!! WITH STEPS PLEASE
BaLLatris [955]

Answer:

Step-by-step explanation:

5c+1+3c=61

8c+1=61

8c=62

c=7.75

4 0
3 years ago
Which of the following should be avoided when proving a trigonometric identity?
White raven [17]

Answer:

cosine

Step-by-step explanation:

fundamental trigonometric identities

7 0
3 years ago
Please answer this!!
balu736 [363]

Answer:

3,724 cubic inches

Step-by-step explanation:

All you have to do is multiply 19•14•14

5 0
3 years ago
The USDA conducted tests for salmonella in produce grown in California. In an independent sample of 252 cultures obtained from w
Marat540 [252]

Answer:

 The decision rule is  

Fail to reject the null hypothesis

  The conclusion is  

There no sufficient evidence to show that the proportion of salmonella in the region’s water differs from the proportion of salmonella in the region’s wildlife

Step-by-step explanation:

From the question we are told that

   The first  sample size is n_1   =  252

    The number that tested positive is  k_1  =  18

     The second sample size is  n_2   =  476

     The number that  tested positive is  k_2 =  20

     The level of significance is  \alpha  = 0.01

Generally the first sample proportion is mathematically represented as

      \^ p _1 =  \frac{k_1 }{ n_1 }

=>    \^ p _1 =  \frac{18 }{ 252 }

=>    \^ p _1 = 0.071

Generally the second sample proportion is mathematically represented as

      \^ p _2 =  \frac{k_2 }{ n_2 }

=>    \^ p _2 =  \frac{20 }{ 476}

=>    \^ p _2 = 0.042

The  null hypothesis is            H_o  :  p_1 - p_2 = 0

The alternative hypothesis is  H_a :  p_1 - p_2 \ne 0

Generally the test statistics is mathematically represented

       z =  \frac{ \^ p_1 - \^ p_2  -  ( p_ 1 - p_2 )}{ \sqrt{\frac{\^ p_1 (1-\^ p_1)}{ n_1  } + \frac{\^ p_2 (1-\^ p_2)}{ n_2  }  } }

=>    z =  \frac{ 0.071 - 0.042  - 0 }{ \sqrt{\frac{0.071  (1-0.071)}{  252  } + \frac{0.042 (1-\^ 0.042)}{ 476  }  } }

=>    z =  1.56

From the z table  the area under the normal curve to the right corresponding to  1.56   is  

        P(Z >  1.56 ) =0.05938

Generally the p-value is mathematically represented as

         p-value =  2 * P(Z >  1.56 )

=>      p-value = 2 *  0.05938

=>      p-value = 0.1188

From the value obtained we see that   p-value  >  \alpha hence

  The decision rule is  

Fail to reject the null hypothesis

  The conclusion is  

There no sufficient evidence to show that the proportion of salmonella in the region’s water differs from the proportion of salmonella in the region’s wildlife

 

5 0
3 years ago
The amount of money in a bank account with an initial balance of $15,000 earns 3% per year. In the exponential model of the form
oksian1 [2.3K]
1.03=b this makes sense because it increases 3 percent so you add 1 to .03

8 0
3 years ago
Read 2 more answers
Other questions:
  • A parka that sold for 65 dollars is marked up to 70.20 what is the percent of markup
    12·2 answers
  • I need help ASAP://);(
    14·2 answers
  • PLEASE HELP ME! IT WOULD BE VERY MUCH APPRECIATED!
    10·1 answer
  • Twice a number is equal to 35 more than 7 times the number.Find the number
    5·1 answer
  • Falcon 13 miles an hour more than 6 times the speed of human how fast is the fastest human
    11·1 answer
  • OmZC > mZE > m2D
    5·1 answer
  • Javier bought a 20-pound bag of dog food for his Great Dane, Tank. After 7 days, all the dog food was gone.
    10·1 answer
  • √2 x √27 use the properties of radicals to simplify
    6·1 answer
  • 1. Is the average change in population is the same now as it was 50 years ago? Explain your answer.
    6·1 answer
  • Complete the double number line to show the other values of fat and protein.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!