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
yanalaym [24]
3 years ago
6

13. You and a friend have dinner at a restaurant. Your meal costs $15.85 and

Mathematics
1 answer:
aalyn [17]3 years ago
7 0
Xbxkskeshxikrjdkwwkndjxjx
You might be interested in
A 95% confidence interval is (70,110). what is the margin for error? A. 19 B.38 C.20 D.40
goldfiish [28.3K]

Answer:

C.20

Step-by-step explanation:

Confidence interval concepts:

A confidence interval has two bounds, a lower bound and an upper bound.

A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.

The margin of error is the difference between the two bounds, divided by 2.

In this question:

Lower bound: 70

Upper bounf: 110

Margin of error:

M = \frac{110 - 70}{2} = \frac{40}{2} = 20

Thus the correct answer is given by option C.

3 0
3 years ago
PLEASE HELP
Thepotemich [5.8K]

Answer:

A

Step-by-step explanation:

Half of 44 is 22

4 0
3 years ago
Read 2 more answers
Find the measure of the angle indicated. 6
deff fn [24]

Answer:

1) m∠U = 90°

2) m∠C = 80°

Step-by-step explanation:

1) The given figure is a quadrilateral

The sum of the interior angles of  quadrilateral = 360°

∴ The sum of the interior angles of the given figure = 360°

Therefore, we have;

80° + 24·x + 4 + 6 + 21·x + 90° = 360°

80° + 45·x + 10  + 90° = 360°

x = (360°- (80° + 10° + 90°))/45 = 4

x = 4

m∠U = 6 + 21·x = 6 + 21 × 4 = 90

m∠U = 90°

2) The sum of the interior angles of the given quadrilateral = 360°

∴ 21·x + 6 + 20·x + 24·x + 4 + 21·x + 6 = 360°

86·x + 16 = 360°

x = (360° - 16°)/86 = 4

x = 4

m∠C = 20·x = 20 × 4 = 80

m∠C = 80°

3) In the figure, some angles are left out, therefore, more information on the remaining angles required

6 0
3 years ago
How to divide 8 by 3 the long way
PilotLPTM [1.2K]

The number 8 divided by 3 is 2 with a remainder of 2 (8 / 3 = 2 R.

4 0
3 years ago
Read 2 more answers
The equation x2+y2=14 represents a
Ann [662]

Answer:

r = √14

Step-by-step explanation:

Is this what you meant?  If so heres' the answer

Equation of circle

Center the origin

r = √14

5 0
3 years ago
Read 2 more answers
Other questions:
  • a rectangular table is two times as long as it is wide. if the area is 18ft^2, find the length and the width of the table.
    14·1 answer
  • What is the answer to K/15=6/5
    11·1 answer
  • John is a car salesman. He earns 5.5% commission on all cars he sells. How much commission would John earn if sold a new car for
    11·2 answers
  • 32 is 160% percent of what number
    5·1 answer
  • What is the value of the function y=2x−3 when x=−1 ?
    7·1 answer
  • Need helppppppppppppppppp
    13·2 answers
  • Somebody else has to comment for me to Mark u as BRAINLIEST!! It won't let me
    15·1 answer
  • What is 5/6 -3/8 ........
    9·1 answer
  • What is the equation of the line if its slope is -3/4 and Y-intercept is -4
    10·2 answers
  • Alex is planning his birthday party. He needs 2 gallons of juice for every 15 guests. If Alex expecting 30 guests, how many gall
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!