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leva [86]
2 years ago
7

3. Ron wants to make sandwiches for him and his friends. He has the following choices in breads whole wheat, multigrain, rye). H

e has these types of meat choices turkey, ham). He has these types of choices for vegetables lettuce, tomatoes). Finally, he has these choices for spreads (mayo, mustard]. If each sandwich has bread, spread, meat, and vegetable, how many possible combinations are there? Be sure to show your work.
Mathematics
1 answer:
Mekhanik [1.2K]2 years ago
7 0

Answer:24

Step-by-step explanation:

Given

Ron wants to make sandwiches

he has 3 choice for bread,2 choices for meat,2 choices for vegetables

and 2 spreads.

A bread can be selected in 3 ways similarly there are 2 choices for meat,vegetables  and spreads

So there can be 3\times 2\times 2\times2=24

So there are twenty four ways in which he can make sandwiches for him and his friends.

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A certain company's main source is a mobile app. The function h models the company's annual profit (in million of dollars) as a
cricket20 [7]

Answer:

At price 3 and 11, the profit will be $0

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

<em> A certain companies main source of income is a mobile app. The companies annual profit (in millions of dollars) as a function of the app’s price (in dollars) is modeled by P(x)=-2(x-3)(x-11) which app prices will result in $0 annual profit?</em>

My answer:

Given:

  • x is the app price
  • P(x) is the profit earned

If we want to find out the app price that will result in $0 annual profit? It means we need to set the function:

P(x)=-2(x-3)(x-11) = 0

<=> (x-3)(x-11)= 0

<=> x - 3 = 0 or x - 11=0

<=> x = 3 or x = 11

So at price 3 and 11, the profit will be $0

Hope it will find you well.

5 0
2 years ago
Read 2 more answers
A recent study found that 51 children who watched a commercial for Walker Crisps (potato chips) featuring a long-standing sports
hichkok12 [17]

Answer:

1

The claim is that the mean amount of Walker Crisps eaten was significantly higher for the children who watched the sports celebrity- endorsed Walker Crisps commercial

2

The kind of test to use is a t -test because a t -test is used to check if there is a difference between means of a population

3

t  =  3.054

4

The p-value  is   p-value  =  P(Z >  3.054) = 0.0011291

5

The conclusion is  

There is sufficient evidence to conclude that the mean amount of Walker Crisps eaten was significantly higher for the children who watched the sports celebrity- endorsed Walker Crisps commercial

The test statistics is  

Step-by-step explanation:

From the question we are told that

   The first sample size is  n_1  =  51

    The first sample  mean is \mu_1  =  36

    The second sample size is  n_2  =  41

    The second sample  size is  \mu_2  =  25

     The first standard deviation is  \sigma _1  =  21.4 \  g

    The second standard deviation is  \sigma _2  =  12.8 \  g

  The  level of significance is  \alpha =  0.05

The  null hypothesis is  H_o  :  \mu_1 = \mu_ 2

The  alternative hypothesis is  H_a :  \mu_1 > \mu_2

Generally the test statistics is mathematically represented as

    t  =  \frac{\= x_1 - \= x_2}{ \sqrt{ \frac{s_1^2}{n_1}  + \frac{s_2^2}{n_2}  } }

=>   t  =  \frac{ 36 - 25}{ \sqrt{ \frac{ 21.4^2}{51}  + \frac{ 12.8^2}{41}  } }

=> t  =  3.054

The  p-value is mathematically represented as

     p-value  =  P(Z >  3.054)

Generally from the z table  

             P(Z >  3.054) =  0.0011291

=>   p-value  =  P(Z >  3.054) = 0.0011291

From the values obtained  we see that p-value  < \alpha so  the null hypothesis is rejected

Thus the conclusion is  

  There is sufficient evidence to conclude that the mean amount of Walker Crisps eaten was significantly higher for the children who watched the sports celebrity- endorsed Walker Crisps commercial

5 0
2 years ago
A student claims that 3x + 2y = 5xy. Use a visual representation to show whether this is true or false
Ket [755]

Answer:

It is true, except when x = 2/5, since it is an asymptote.

Step-by-step explanation:

3x=5xy-2y

3x=y(5x-2)

3x/5x-2=y

5x-2=0 -------> 5x=2 --------> x=2/5

7 0
2 years ago
Hayden, from the blog "Hanging with Hayden," directly sent an email to her reader's age 18 to 21 and asked the survey question,
QveST [7]

Answer:

e.) The survey is meaningless because of nonresponse bias.

Step-by-step explanation:

3 0
2 years ago
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Write the limit as a definite integral on the interval [a, b], where ci is any point in the ith subinterval. limit interval lim
tankabanditka [31]

Seems like it would be

\displaystyle\int_5^9x^4\,\mathrm dx

7 0
2 years ago
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