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
SVEN [57.7K]
2 years ago
5

Please help fast. J hjddhdhhfhdhdhdhdhdhdhdhdhdjddhd

Mathematics
2 answers:
Nana76 [90]2 years ago
6 0
Plug 5 in for x and solve. 5(4) - 2 = 18
Murrr4er [49]2 years ago
4 0
The answer would be 18
You might be interested in
-5t = -45 please help
gladu [14]

Answer:

t = 9

Step-by-step explanation:

8 0
3 years ago
A Gallup Poll in July 2015 found that 26% of the 675 coffee drinkers in the sample said they were addicted to coffee. Gallup ann
emmasim [6.3K]

Answer:

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

A confidence interval has two bounds, the lower and the upper

Lower bound:

\pi - M

Upper bound:

\pi + M

In this problem, we have that:

\pi = 0.26, M = 0.05

Lower bound:

\pi - M = 0.26 - 0.05 = 0.21

Upper bound:

\pi + M = 0.26 + 0.05 = 0.31

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

4 0
3 years ago
The large rectangle shown here is 3cm by 5 cm. What is a direct way to determine the area of the rectangle in square centimeters
dlinn [17]

Answer:

Place the squares on the rectangle.

Step-by-step explanation:

Hello!

The area of the 1cm by 1cm square is 1 square cm.

We can solve for the area by placing multiple of those squares in the larger rectangle.

If we place it, we get 15 placed squares, with a total area of 15 square cm. This relies on the meaning of area, as we are simply measuring the number of square cm taken up by the object.

We would place 3 rows of 5 squares, representing a height of 3 cm (side length of 3 squares), and a length of 5 cm (side length go 4 squares).

This also proves the area formula A = L * W, as we multiple the side lengths to find the number of square units.

8 0
2 years ago
Kelly wants to cut her birthday cake into 20 equal pieces. If she uses all of the cake, what is the correct angle she needs to c
klasskru [66]

Answer: Well if i am correct she would be cutting acute angles.

4 0
3 years ago
How can I get this count <br>y = 0.75x + 0.25​
Andrews [41]

Answer:

what the question

?

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • What does 2 times the quantity x plus 6 look like in an equation
    10·2 answers
  • I need this answered, hurry
    8·1 answer
  • How do I do this problem?
    9·1 answer
  • Find the solution the each of the following first order linear differential equations:
    11·1 answer
  • What is 100×507 and show how you got the answer​
    14·2 answers
  • A store sold $115.50 worth of coffee mugs. how many mugs did they sell? at3.50 per mug
    5·1 answer
  • (Repost) The points (2, 1), (5, –2), and (–2, –3) describe the vertices of a triangle. Is the triangle a right triangle? Hint: p
    9·2 answers
  • A metal products company is coating
    6·1 answer
  • Help me please!! giving 50 points!!!
    12·2 answers
  • Which survey best represents a sampling error?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!