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
ioda
3 years ago
12

Jenny will choose between two restaurants to purchase pizzas for her party. The first restaurant charges a delivery fee of $6 fo

r the entire purchase and 12 per pizza. The second restaurant has no delivery fee and charges 14 per pizza.
Mathematics
1 answer:
IgorC [24]3 years ago
8 0

Answer:

The second one

Step-by-step explanation:

The second one because if you compare 12+6=18 to 14 the better buy is the second one because 14 is less than 18

You might be interested in
How can you tell if a number is devisible by 3?
Sunny_sXe [5.5K]

Answer:

Add all the digits.

If the sum of digits is a multiple of 3, the number is too

6 0
3 years ago
Read 2 more answers
What is 6.37 × 104 written in standard form?   A. 63,700   B. 637,000   C. 6370   D. 637
Setler [38]
= 6.37 * 10^4 = 637 * 10^2 = 63700

In short, Your Answer would be Option A

Hope this helps!
8 0
3 years ago
Read 2 more answers
Thirty-six people auditioned for a play, and 6 people got roles. write the ratio in simplest form of the number of people who au
Mandarinka [93]
The ratio would be 6:1 because out of every 6 people, 1 person got a role.  Please mark Brainliest!!!
3 0
3 years ago
Read 2 more answers
Suppose a baker claims that the average bread height is more than 15cm. Several of this customers do not believe him. To persuad
Deffense [45]

Answer:

a) 17-2.26\frac{1.9}{\sqrt{10}}=15.64  

17+2.26\frac{1.9}{\sqrt{10}}=18.36  

So on this case the 95% confidence interval would be given by (15.64;18.36)

b) 1. n=15, conf =95% \bar X= 35 s=2.7

> round(qt(p=1-0.025,df=15-1),2)

[1] 2.14

> round(qt(p=0.025,df=15-1),2)

[1] -2.14

2. n=37, conf =99% \bar X= 82 s=5.9

> round(qt(p=1-0.005,df=37-1),2)

[1] 2.72

> round(qt(p=0.005,df=37-1),2)

[1] -2.72

3. n=1009, conf =90% \bar X= 0.9 s=0.04

> round(qt(p=1-0.05,df=1009-1),2)

[1] 1.65

> round(qt(p=0.05,df=1009-1),2)

[1] -1.65

Step-by-step explanation:

Part a: What is the lower bound to this confidence interval? 2 cm (round to 2 decimal places) What is the upper bound to this confidence interval? cm (round to 2 decimal places)

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

Solution to the problem

We have the following data:

\bar x= 17 represent the sample mean

s = 1.9 represent the sample deviation

n =10 represent the sample size

The confidence interval for the mean is given by the following formula:  

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}} (1)  

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:  

df=n-1=10-1=9  

Since the Confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,9)".And we see that t_{\alpha/2}=2.26  

Now we have everything in order to replace into formula (1):  

17-2.26\frac{1.9}{\sqrt{10}}=15.64  

17+2.26\frac{1.9}{\sqrt{10}}=18.36  

So on this case the 95% confidence interval would be given by (15.64;18.36)

Part b

1. n=15, conf =95% \bar X= 35 s=2.7

> round(qt(p=1-0.025,df=15-1),2)

[1] 2.14

> round(qt(p=0.025,df=15-1),2)

[1] -2.14

2. n=37, conf =99% \bar X= 82 s=5.9

> round(qt(p=1-0.005,df=37-1),2)

[1] 2.72

> round(qt(p=0.005,df=37-1),2)

[1] -2.72

3. n=1009, conf =90% \bar X= 0.9 s=0.04

> round(qt(p=1-0.05,df=1009-1),2)

[1] 1.65

> round(qt(p=0.05,df=1009-1),2)

[1] -1.65

5 0
3 years ago
Find the surface area of the regular hexagonal prism. Round your answer to the nearest hundredth.
natka813 [3]
A single rectangle has the area of (11 mm)(8 mm) = 88 mm²
So the lateral areas which are the total number of rectangles will be 6*(88 mm²) = 528 mm²
Just recall the formula of the regular polygon, given the side of that polygon.
This hexagon has the area of (1/4)*(6)*(8²)*cot(180°/6) = 166.28 mm²
There are two bases; so 2*(166.28 mm²) = 332.55 mm²

Hence, the surface area is lateral areas + base areas:
528 mm² + 332.55 mm² = 860.55 mm² (ANSWER: d)
6 0
3 years ago
Other questions:
  • Nikhil gets paid a 5 percent commission on every pair of shoes that he sells. He earned $1.00 on the last pair of shoes that he
    14·1 answer
  • A class is playing a game called “Guess my Number,” in which the number is an integer. The teacher gives these clues for the unk
    7·2 answers
  • Jimmy spent $121.60 on shirts. Tee shirts cost $9.10 and long sleeve shirts cost $14.20. If he bought a total of 10, how many of
    9·1 answer
  • 18. Solve the inequality. Show your work.<br> –6b &gt; 42 or 4b &gt; –4
    15·2 answers
  • The radius of Venus is 3,760.4 miles. What is the approximate volume of Venus?
    9·1 answer
  • In math is -34 less than -9
    14·1 answer
  • Graph the function f( x ) = |x+2| - 3
    14·2 answers
  • -3/5(-5/9)
    7·1 answer
  • The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 7 to 4. If there were 4
    10·1 answer
  • HELP ME PLEASE!!!!!!!<br> 50 POINTS!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!