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
Anastasy [175]
2 years ago
8

[asy] size(7cm); draw((1.8,0)--(3.2,0),Arrows); draw((2,0.03)--(2,-0.03)); draw((3,0.03)--(3,-0.03)); for(real i=15/7; i<2.9;

i+=1/7){ draw((i,0.02)--(i,-0.02)); }; label("2",(2,-0.02),S); label("3",(3,-0.02),S); label("$\heartsuit$",(16/7,-0.01),S,red); [/asy] What is the simplest fraction whose value is equal to the number $\textcolor{red}{\heartsuit}$ depicted on this number line?
Mathematics
1 answer:
shutvik [7]2 years ago
3 0

Answer:

2 2/7

Step-by-step explanation:

You might be interested in
Will mark brainliest
faust18 [17]

x^3 is strictly increasing on [0, 5], so

\max\{x^3 \mid 0\le x\le5\} = 5^3 = 125

and

\min\{x^3 \mid 0 \le x\le5\} = 0^3 = 0

so the integral is bounded between

\displaystyle \boxed{0} \le \int_0^5x^3\,dx \le \boxed{125}

8 0
2 years ago
A spinner is divided into 10 congruent sections. Each section is labeled with a number as shown. The spinner will be spun one ti
Ksivusya [100]

Answer: 1/2 i think

Step-by-step explanation:

6 0
3 years ago
3. The measures of the angles of a triangle are in the extended ratio 2:3. 10. What is the measure of the
Kay [80]

Answer:

120

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
a full-time employee who works 40 hours per week earns 29.85 per hour estimate the person's annual income
balu736 [363]
There are 52 weeks in a year. The question is asking how much is the annual salary.
8 0
3 years ago
Read 2 more answers
A manufacturer uses production method to produce steel rods. A random sample of 17 steel rods resulted in lengths with a standar
Arisa [49]

Answer:

\chi^2 =\frac{17-1}{12.15} 22.09 =15.87

Traditional method

We can find a critical value in the chi square distribution with df =16 who accumulates \alpha/2 =0.05 of the area on each tail and we got:

\chi^2_{crit}= 7.962

\chi^2_{crit}=26.296

Since the calculated value is between the two critical values we don't have enough evidence to conclude that the true deviation is NOT significantly different from 3.5 cm

Confidence level method

We can find the p value like this

p_v =2*P(\chi^2 >15.87)=0.92

Since the p value is higher then the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is NOT significantly different from 3.5 cm

Step-by-step explanation:

Data provided

n=17 represent the sample selected

\alpha=0.1 represent the significance

s^2 =4.7^2 =22.09 represent the sample variance

\sigma^2_0 =3.5^2 =12.15 represent the value to check

Null and alternative hypothesis

We want to verify if the new production method has lengths with a standard deviation different from 3.5 cm, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 = 12.15

Alternative hypothesis: \sigma^2 \neq 12.15

The statistic for this case is given by:

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

The degrees of freedom are:

df =n-1= 17-1=16

\chi^2 =\frac{17-1}{12.15} 22.09 =15.87

Traditional method

We can find a critical value in the chi square distribution with df =16 who accumulates \alpha/2 =0.05 of the area on each tail and we got:

\chi^2_{crit}= 7.962

\chi^2_{crit}=26.296

Since the calculated value is between the two critical values we don't have enough evidence to conclude that the true deviation is significantly different from 3.5 cm

Confidence level method

We can find the p value like this

p_v =2*P(\chi^2 >15.87)=0.92

Since the p value is higher then the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is significantly different from 3.5 cm

7 0
3 years ago
Other questions:
  • The solution to system of inequalities is often an infinite set of points? TRUE OR FALSE :
    6·1 answer
  • What's the value of 3.872
    7·1 answer
  • 10 to the seventh power
    8·1 answer
  • What is the positive difference between the square of the sum of the first five positive integers and the sum of the first five
    12·1 answer
  • 5. compune o problema dupa exercitiul dat,apoi rezolva 45678-(45678-3255)=
    11·1 answer
  • HELP ME PLZ AND I WILL SHOW YOU MY KITTTTY
    15·1 answer
  • Eric's water bottle holds 500 mL. He drinks 4 bottles of water at soccer practice.
    5·2 answers
  • Simplify 2a - x/3b - 4 1/2a - 1/6b​
    5·1 answer
  • 0.60 10 000 % = 0.00006% 0 6 X 10-5% ayudemnea resolverlo
    12·1 answer
  • NEED THIS PLS HELP!!!!!!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!