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
Stells [14]
3 years ago
12

the price of an item has been reduced by $2.72 . the new sale price is $96.09 . what was the original price?

Mathematics
1 answer:
stellarik [79]3 years ago
6 0
You add the two numbers together and get $98.81
You might be interested in
Identify the following data set:
Vsevolod [243]

Answer: Population

Step-by-step explanation:

6 0
3 years ago
One worker can finish a job in 9 hours, and another for 6 hours. The first worker started working at 7 am and the 2nd worker sta
noname [10]

Answer:

NANI!?!?

Step-by-step explanation:2

POOOOOOOOOOOOOO

3 0
3 years ago
A randomized trial tested the effectiveness of diets on adults. Among 36 subjects using Diet 1, the mean weight loss after a yea
seropon [69]

Answer:

The 95%  confidence interval is

           0.45 <  \mu_1 - \mu_2  < 5.35

Step-by-step explanation:

From the question we are told that

   The first sample size is  n_1   =  36

   The first  sample mean is  \= x_1  =  3.5

   The first standard deviation is  \sigma_1  =  5.9 \ pounds

   The second  sample size is n_2 =  36

    The second  sample mean is  \= x_2 =  0.6

    The second  standard deviation is \sigma  =  4.4

Generally the degree of freedom is mathematically represented as

     df =  \frac{ [ \frac{s_1^2 }{n_1 }  + \frac{s_2^2 }{n_2} ]^2 }{ \frac{1}{(n_1 - 1 )} [ \frac{s_1^2}{n_1} ]^2 + \frac{1}{(n_2 - 1 )} [ \frac{s_2^2}{n_2} ]^2  }

=>  df =  \frac{ [ \frac{5.9^2 }{34 }  + \frac{4.4^2 }{34} ]^2 }{ \frac{1}{(34 - 1 )} [ \frac{5.9^2}{34} ]^2 + \frac{1}{(34- 1 )} [ \frac{4.4^2}{ 34} ]^2  }

=>  df =63

Generally the standard error is mathematically represented as

      SE =  \sqrt{ \frac{s_1 ^2 }{n_1}  + \frac{s_2^2 }{ n_2 } }

=>  SE =  \sqrt{ \frac{ 5.9 ^2 }{ 36 }  + \frac{ 4.4^2 }{36} }

=>  SE = 1.227

From the question we are told the confidence level is  95% , hence the level of significance is    

      \alpha = (100 - 95 ) \%

=>   \alpha = 0.05

Generally from the t distribution table the critical value  of   at a degree of freedom of is  

     t_{\frac{\alpha }{2}, 63  } =  1.998

Generally the margin of error is mathematically represented as

        E =  t_{\frac{\alpha }{2}, 63  } *  SE

=>    E =  1.998 * 1.227

=>    E =  2.45

Generally 95% confidence interval is mathematically represented as  

      (\= x_1 - \x_2) -E <  \mu

 => (3.5  - 0.6) - 2.45 <  \mu_1 - \mu_2  < (  3.5  - 0.6)  + 2.45

=>   0.45 <  \mu_1 - \mu_2  < 5.35

     

8 0
2 years ago
Two sides of a triangle measure 10 inches and 10.9 inches. The included angle between these sides is 65°. What is the approximat
fenix001 [56]

Answer:

9.9inches

Step-by-step explanation:

From the attachment, the opposite side is debited as "x" while the Hypotenuse is 10.9inches, we can find the third side by using trigonometry

From trigonometry, Sin(x)= opposite/Hypotenuse

Sin(65)=X/10.9

X= Sin(65) ×10.9

X=0.9063×10.9

=9.8688

Hence the third side of the triangle is approximately 9.9inches

CHECK THE ATTACHMENT FOR THE TRIANGLE

6 0
3 years ago
Help plz!!!!!!!!!!!!!!!!!!!!!!!!
ivolga24 [154]

Answer: the answer is 10

Step-by-step explanation: used a caculator

5 0
3 years ago
Read 2 more answers
Other questions:
  • Find a ⋅ b. a = 9i + 5j, b = 4i + 3j
    5·2 answers
  • HELP ME ASAP 29 POINTS
    5·1 answer
  • Ten people stand in line. The first goes to the back of the line and the next person sits down, so that the person who was third
    8·1 answer
  • 1) What is the perimeter of the triangle shown in the drawing?
    12·1 answer
  • How do you simplify i²⁹? (If you can't tell, that's the imaginary number i^29).
    8·1 answer
  • Ratio of 24 to the price
    5·1 answer
  • Elena is 56 inches tall.
    8·2 answers
  • Identify the graph of the following equation. x&gt;2
    14·1 answer
  • 30% of what number is 150? A. 500 B. 50 C. 45 D. 200
    14·2 answers
  • PLEASE HELP ME WITH ALGEBRA!! THANK YOU!!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!