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
Kamila [148]
3 years ago
11

Please help me don’t skip!

Mathematics
1 answer:
hammer [34]3 years ago
4 0

Answer:7

Step-by-step explanation:

You might be interested in
Suppose taxi fare from Logan Airport to downtown Boston is known to be normally distributed with a standard deviation of $2.50.
Mariulka [41]

Answer:

95% Confidence interval for taxi fare:  ($20.5,$24.2)

Step-by-step explanation:

We are given the following data set: for fares:

$22.10, $23.25, $21.35, $24.50, $21.90, $20.75, and $22.65

Formula:

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{156.5}{7} = 22.35

95% Confidence interval:

\bar{x} \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

22.35 \pm 1.96(\frac{2.5}{\sqrt{7}} ) = 22.35 \pm 1.85 = (20.5,24.2)

6 0
3 years ago
solve for each please i really need help if u want to help me with my test and i get an a or a b i will give u 500 dollars
Len [333]

Answer:

The relation is not a function

The domain is {1, 2, 3}

The range is {3, 4, 5}

Step-by-step explanation:

A relation of a set of ordered pairs x and y is a function if

  • Every x has only one value of y
  • x appears once in ordered pairs

<u><em>Examples:</em></u>

  • The relation {(1, 2), (-2, 3), (4, 5)} is a function because every x has only one value of y (x = 1 has y = 2, x = -2 has y = 3, x = 4 has y = 5)
  • The relation {(1, 2), (-2, 3), (1, 5)} is not a function because one x has two values of y (x = 1 has values of y = 2 and 5)
  • The domain is the set of values of x
  • The range is the set of values of y

Let us solve the question

∵ The relation = {(1, 3), (2, 3), (3, 4), (2, 5)}

∵ x = 1 has y = 3

∵ x = 2 has y = 3

∵ x = 3 has y = 4

∵ x = 2 has y = 5

→ One x appears twice in the ordered pairs

∵ x = 2 has y = 3 and 5

∴ The relation is not a function because one x has two values of y

∵ The domain is the set of values of x

∴ The domain = {1, 2, 3}

∵ The range is the set of values of y

∴ The range = {3, 4, 5}

3 0
3 years ago
Write the explicit formula for the geometric sequence represented by the recursive formula. a1 = 11 an = 3 · an-1 A) an = 11 · 3
lozanna [386]
C. an= 11 * 3n-1. have funnnnn
8 0
3 years ago
Read 2 more answers
The figure below shows three uniform objects: a rod with m1 = 7.00 kg, a right triangle with m2 = 3.70 kg, and a square with m3
navik [9.2K]
The answer is 

G = [m1(veca1a2) + m2 (veca3a4) + m3veca5a6)] /  (m1 + m2  + m3) 

G= m1x5 + m2 x 4sqrt (2) + m3x 3sqrt (2)  / 16  =  35 +4 x 3.7x sqrt (2) + 5.3 x3 4sqrt (2) / 16 =35 + 36<span> sqrt (2) / 16
G = 53.09
LOOK AT THE IMAGE

</span>

6 0
3 years ago
I need help for school​
mr Goodwill [35]
Its 11 cause I’m built different
3 0
3 years ago
Other questions:
  • Two angles and the non-included side of one triangle are congruent to the corresponding parts of another triangle. Which congrue
    15·2 answers
  • If f(x)=3(x+5)+4/x what is f(a+2) ?
    10·1 answer
  • To either side kneel two high-court functionaries, dressed very like the Oba, but with plainer headdresses and fewer neck-rings.
    10·2 answers
  • HELP MEH Which is one factor that affects the type of cloud that will form?
    6·2 answers
  • The spinner is spun twice. whats the probability of the arrow landing on three and then an odd number?
    15·1 answer
  • The school band is selling tickets for a chance to win an Ipad. Lucy bought 20 out of the 200 tickets sold. What percent chance
    6·2 answers
  • Given f(x)=2^x and g(x)=f(x-3)+4, write the new function rule (equation) for function g and describe (using words*) the two tran
    10·1 answer
  • Please help me please
    7·1 answer
  • Один острый угол прямоугольного треугольника равен 30".
    12·1 answer
  • 20 points!<br><br> Please draw this out on a number line so I have a direct answer, thank you! :D
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!