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3 years ago

What is the value of p?

Mathematics

1 answer:

guapka [62]3 years ago

3 0

Answer:

Step-by-step explanation:

comment if you want a step-by-step

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A pilot takes a taxi from the airport to a hotel. The taxi driver charges $2.50 initial charge plus $2.65 per mile. which equati

grandymaker [24]

Answer:

x is the number of miles

Step-by-step explanation:

Because the per mile charge is $2.65 per mile .. so for x miles, the per mile charge is 2.65x. And the fixed charge is the initial charge of $2.50.

y = 2.50 + 2.65x

7 0

3 years ago

The sales of a grocery store had an average of $7,000 per day. The store introduced several advertising campaigns in order to in

Sati [7]

Answer:

a.The advertising campaigns increased the average daily sales.

Step-by-step explanation:

This is a hypothesis test for the population mean.

The claim is that the advertising campaigns increased the average daily sales.

Then, the null and alternative hypothesis are:

$H_0: \mu=7000\\\\H_a:\mu> 7000$

The significance level is 0.05.

The sample has a size n=100.

The sample mean is M=7280.

The standard deviation of the population is known and has a value of σ=1000.

We can calculate the standard error as:

$\sigma_M=\dfrac{\sigma}{\sqrt{n}}=\dfrac{1000}{\sqrt{100}}=100$

Then, we can calculate the z-statistic as:

$z=\dfrac{M-\mu}{\sigma_M}=\dfrac{7280-7000}{100}=\dfrac{280}{100}=2.8$

This test is a right-tailed test, so the P-value for this test is calculated as:

$\text{P-value}=P(z>2.8)=0.0026$

As the P-value (0.0026) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the advertising campaigns increased the average daily sales.

7 0

3 years ago

Express the function graphed on the axes below as piecewise function

lianna [129]

Answer:

<--------o o------------->

-4 2

Step-by-step explanation:

Because the sign in the inequalities is only greater than/ less than (not equal to), we know that there is an open dot on x=-4 and on x=2.

From there, we shade the area on the graph that is true to the function. So, we can test points.

First we will test x=-5

-5<-4 --> this is true, so we will shade to the left of x=-4

Now test x=0

0<-4 --> this is false

0>2 --> this is also false, so the area between the two open dots will not be shaded

Now test x=3

3>2 --> this is true, so we will shade to the right of x=3

7 0

3 years ago

6q-7=2q+29 I don't know how to do this, help please.

Tems11 [23]

The first thing you should do is to add -2q on both sides of the equation and then add +7 on both sides so you will have:
6q - 2q = 29 +7
4q = 36 so q is equal to 36/4 or 9 :)))
i hope this is helpful
have a nice day

5 0

3 years ago

Read 2 more answers

Which of the following points would maximize the objective function N=3x+5y?

Aleonysh [2.5K]

Answer:

D try B or its either one of that i took the quiz long time ago. so I don't really remember.

8 0

3 years ago