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
Phantasy [73]
3 years ago
13

Question 1 of 10

Mathematics
1 answer:
Andru [333]3 years ago
6 0

Answer:

c

Step-by-step explanation:

You might be interested in
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airp
yKpoI14uk [10]

Answer:

Confidence Interval in 95% confidence level for the quality rating is (6.06,7.46)

Step-by-step explanation:

Confidence Interval can be calculated using the formula M±ME where

  • M is the mean of the sample
  • ME is the margin of error in a given confidence level

Using the sample obtained from 50 business travelers we get

  • Mean of the sample is 6.76
  • standard deviation of the sample is 2.526

Margin of error (ME) around the mean using the formula

ME=\frac{z*s}{\sqrt{N} } where

  • z is the corresponding statistic in 95% confidence level (1.96)
  • s is the standard deviation of the sample (2.526)
  • N is the sample size (50)

Using the numbers in the formula we get:

ME=\frac{1.96*2.526}{\sqrt{50} } ≈ 0.70

Then the confidence interval becomes 6.76±0.70

6 0
3 years ago
HLEP PMG PLSakkwkwksksk
Alex_Xolod [135]

Answer:

3 is the constant

Step-by-step explanation:

12 times 3 = 36

18 times 3 = 54

25 times 3 = 54

5 0
3 years ago
Sandy pays $120 for 4 violin lessons. How much does she pay for 10 violin lessons?
monitta

Answer:

300$

Step-by-step explanation:

divide 120 by 4 and then mutiply the answer on that by 10

7 0
3 years ago
Read 2 more answers
If the angle of elevation of the sun is 63° and the flagpole casts 27-foot shadow, how tall is the flagpole?
VLD [36.1K]

Answer:

Step-by-step explanation:

To help you solve

Use the fact that (height of flagpole)/(length of shadow) = tan(angle of elevation).

5 0
2 years ago
Solve for x: -7 &lt; x-1 &lt; 8<br> 06 0-6 &gt;x&gt;9<br> 06 &gt;x&gt;-9<br> O-6
avanturin [10]

Answer:

−

7

<

x

−

1

<

8

=

6

=

0

−

6

>

x

>

9

=

−

6

>

x

>

9

6

>

x

>

−

9

=

−

6

>

x

>

9

O

−

6

=

−

6

>

x

>

9

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Cual es la diferencia 4/7 y 1/3
    15·1 answer
  • a bottle contains 225 coins. 1/3 of the coins are £1 coins. 110 of the coins are 50p coins. the rest of the coins are 20p coins.
    12·1 answer
  • G(x)= -4x <br> h(x)= 2x^3 + 5x^2 + 2x Find(2g+4h)(x)
    7·1 answer
  • Simplify the expression.
    8·2 answers
  • Find the product of -9 and-3
    6·2 answers
  • Please help On a coordinate plane, a point is 4 units to the left and 1 unit down.
    13·1 answer
  • Please determine x.
    14·1 answer
  • Which equation represents a line which is perpendicular to the line x – 2y = -14?
    5·1 answer
  • Help help help help last one
    15·2 answers
  • The equation y = 1/4x represents a proportional relationship. What is the constant of proportionality?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!