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
madreJ [45]
3 years ago
8

Lee bought a 7 kilogram can of raisins for $6.50. What is the unit price? Round answrr to the nearest cent.

Mathematics
1 answer:
meriva3 years ago
3 0
0.92857142857

or about 92 cents per kilogram
You might be interested in
Suppose that the sample standard deviation was s = 5.1. Compute a 98% confidence interval for μ, the mean time spent volunteerin
NISA [10]

Answer:

The 95% confidence interval would be given by (5.139;5.861)  

Step-by-step explanation:

1) 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".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

2) Confidence interval

Assuming that \bar X =5.5 and the ranfom sample n=1086.

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=1086-1=1085

Since the Confidence is 0.98 or 98%, the value of \alpha=0.02 and \alpha/2 =0.01, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.01,1085)".And we see that t_{\alpha/2}=2.33

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

5.5-2.33\frac{5.1}{\sqrt{1086}}=5.139    

5.5+2.333\frac{5.1}{\sqrt{1086}}=5.861

So on this case the 95% confidence interval would be given by (5.139;5.861)    We are 98% confident that the mean time spent volunteering for the population of parents of school-aged children is between these two values.

5 0
3 years ago
Pls help i cant get this question :(
sukhopar [10]

Answer:

A

Step-by-step explanation:

X<2

Everything before 2 on the X-Axis will be shaded.

< are broken lines, ≤ are solid lines.

3 0
2 years ago
Answer the question in the picture
Schach [20]

The area of the semicircle is A = 1187.9 cm².

<h3>What is the area of a circle?</h3>

The area of a circle with a radius of r is A = πr².

Given that, the diameter of the semicircle is 55 cm.

The radius of the semicircle is,

r = 55/2

The area of a semicircle is given by,

A = (1/2)πr²

Substitute the values,

A = (1/2)π(55/2)²

A = 1187.9

Hence, the area of the semicircle is A = 1187.9 cm².

Learn more about the area of a circle:

brainly.com/question/22964077

#SPJ1

6 0
1 year ago
3 - 6k + 9g - 11 + 7g<br>(Distribute it with like terms and stuff)​
AURORKA [14]

Answer:

-6k+16g-8

Step-by-step explanation:

simplify

6 0
2 years ago
Which relation is a function?<br>Do Not Post A Link.​
Schach [20]
the one that starts with (-2,-2)
5 0
2 years ago
Other questions:
  • Before she went on a diet, Jenna’s waist measured 32.45 inches.After the diet, it measured 26.97 inches.How many inches did Jenn
    6·2 answers
  • Simplify 5(x – 2) + 11
    8·1 answer
  • Solve for x<br><br> 3x - 4 = 2x - 10<br><br> x = 14<br> x = 6<br> x = -6<br> x = -14
    9·2 answers
  • Factor this trinomial. answer should have 2 binomials. y^2+5y-36
    10·1 answer
  • Somebody please help
    15·1 answer
  • Select the correct answer. What is the value of c, correct to one decimal place? A. 4.6 B. 3.2 C. 2.8 D. 1.2
    13·2 answers
  • I need help!! (photo included)
    13·1 answer
  • Whats 4
    14·1 answer
  • Amir says the graph of<br> y= x2 + 16 has -4 as a zero. Is Amir correct?<br> Explain.
    7·2 answers
  • A shop has this offer.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!