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
worty [1.4K]
2 years ago
11

13434yards of ribbon cost $7. Find the cost per yard. (Unit Rate).Enter your answer as a whole number or a decimal. Do not inclu

de a label.
Mathematics
1 answer:
Lera25 [3.4K]2 years ago
4 0

Answer:

1,919.1

Step-by-step explanation:

I know that's the answer

You might be interested in
The theoretical probability of an event occurring is 2/5 Which best describes the experimental probability associated with this
max2010maxim [7]
The answer is out of every 5 trials, the desired out come will be approximately 2 times. 
6 0
3 years ago
Read 2 more answers
Please answer this in two minutes
LekaFEV [45]

Answer:

20/29

Step-by-step explanation:

SOH CAH TOA

so its opposite/hyp...

20/29

is the answer

3 0
3 years ago
Two surfers and statistics students collected data on the number of days on which surfers surfed in the last month for 30 longbo
Alisiya [41]

Answer:

Do not reject H0. The mean days surfed for longboarders is significantly larger than the mean days surfed for all shortboarders

Step-by-step explanation:

The null hypothesis is that  the mean days surfed for all long boarders is larger than the mean days surfed for all short boarders

H0:  μL > μs      against the claim Ha:  μL≤ μs

the alternate hypothesis is the mean days surfed for all long boarders isless or equal to  the mean days surfed for all short boarders (because long boards can go out in many different surfing conditions)

The test statistic is

t= x1- x2/  √s1/n1+ s2/n2

1) Calculations

Longboards

Mean

ˉx=∑x/n=4+8+9+4+9+7+9+6+6+11+15+13+16+12+10+12+18+20+15+10+15+19+21+9+22+19+23+13+12+10/30

=377/30

=12.5667

Longboard Variance S2=[∑dx²-(∑dx)²/n]/n-1

=[831-(-13)²/30]/29

=831-5.6333/29

=825.3667/29

=28.4609

Shortboard Mean

ˉx=∑x/n=6+4+6+6+7+7+7+10+4+6+7+5+8+9+4+15+13+9+12+11+12+13+9+11+13+15+9+19+20+11/30

=288/30

=9.6

Shortboard Variance S2=[∑x²-(∑x)²/n]/n-1

=[ 3270-(288)2/30]/29

=3270-2764.8/29

=505.2/29

=17.4207

2) Putting values in the test statistic

t=|x1-x2|/√S²1/n1+S²2/n2

t =|12.5667-9.6|/√28.4609/30+17.4207/30

t =|2.9667|/√0.9487+0.5807

t=|2.9667|/√1.5294

t=|2.9667|/1.2367

t=2.3989

3) Degree of freedom =n1+n2-2=30+30-2=58

4) The critical region is t ≤ t(0.05) (58) =1.6716

5) Since the calculated t= 2.4 does not fall in the critical region t(0.05) (58)  ≤ 1.6716 we do not reject H0.

The p-value is 0.008969. The result is significant at p <0 .05.

6 0
3 years ago
The sum of 2 consecutive numbers is 43. What are the numbers
Evgesh-ka [11]
21 and 22 because 21+22=43
5 0
3 years ago
Find the length of the missing ride. ROUND YOUR ANSWER TO THE NEAREST TENTH
irakobra [83]

Using pythagorean theorem:

\begin{gathered} c^2=a^2+b^2 \\ b=\sqrt[]{c^2-a^2} \\ b=\sqrt[]{19^2-17^2} \\ b=\sqrt[]{72} \\ b\approx8.5 \end{gathered}

8 0
9 months ago
Other questions:
  • Lola measures three buttons for a shirt she is making. one button is 1/8 inch, one is 3/8 inch, and one is 1/4 inch. the button
    7·1 answer
  • HELP PICTURE IS SHOWN
    9·1 answer
  • Determine the solution set of (x - 3)2 = 49. {6, -8} {4, 10} {10, -4}
    9·1 answer
  • The value of 1 in 375,081 is 10
    8·2 answers
  • In a survey sample of 83 respondents, about 30.1% of the sample work less than 40 hr per week. What is the estimated standard er
    10·1 answer
  • Express the polynomial 2m^2-3+7m in standard form
    14·1 answer
  • Last week, 17 employees exceeded their sales quota, 13 employees met their sales quota, and 3 employees didn't meet their sales
    12·1 answer
  • What is the solution to 2log9(x)=log^9(8)+log9(x-2)
    13·2 answers
  • After 7 hours of driving, who is farther from his or her home? By how much?
    7·1 answer
  • Determine the area of a parallelogram if<br> its base is 16 cm and its height is 7 cm.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!