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
il63 [147K]
3 years ago
8

What is energy and what is it

Mathematics
2 answers:
Ierofanga [76]3 years ago
8 0
It is ability to do work. Simply everything is energy "E=mc^2" says even mass is energy
zhannawk [14.2K]3 years ago
7 0
Energy is the ability to move and the power source of an object
You might be interested in
2. Two researchers, Beth and Frank, ask a random sample of teenagers whether or not they had
Veseljchak [2.6K]

Answer:

Frank's confidence interval, (.75, .89) has to be wrong.

The explanation is presented below.

Step-by-step explanation:

The Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample proportion) ± (Margin of error)

Margin of Error is the width of the confidence interval about the mean.

So, a sample proportion of 80% indicates that Beth's interval of (.73, .87) gives a margin of error of 7%.

Making the lower limit of the interval be

(Sample proportion) - (Margin of error) = 80 - 7 = 73%

Upper limit of the interval = (Sample proportion) + (Margin of error) = 80 + 7 = 87%

Hence, this confidence interval is plausible for the survey carried out.

But Frank's interval of (.75, .89) doesn't work with the definition of a confidence interval given above. The range has to be equally spread around the mean with (lower limit, upper limit). The lower limit cannot be 75 and the upper limit 89.

If the lower limit is truly 75, the margin of error has to be (80 - 75), 5%. And the corresponding upper limit should be (80 + 5), 85%.

Frank's interval as (.75, .85) would have been more plausible.

And if the upper limit is truly 89%, the fiitting lower limit, judging by the distance of the upper limit from the sample proportion (89 - 80 = 9%), should be (80 - 9), 71%. Frank's interval as (.71, .89) would also have been more plausible.

Hope this Helps!!!

7 0
3 years ago
Find the mean of the picture below?
Kobotan [32]
The believe mean is four
8 0
3 years ago
How many solutions are there to the equation below? <br><br> 8x-10=3(2x+5)+2x
pishuonlain [190]

Answer:

No solutions

Step-by-step explanation:

8x - 10 = 3(2x + 5) + 2x

8x - 10 = 6x + 10 + 2x

8x - 10 = 8x + 10

4 0
2 years ago
What is the slope of a line that is perpendicular to a line whose equation is 3y=−4x+2 ?
MAVERICK [17]

3y=−4x+2

y = -4x/3 + 2/3

y = 3x/4 + 2/3

so the slope is 3/4 remember that perpendicular slope is just the opposite reciprocal of the original slope given.

8 0
3 years ago
!!!WILL GIVE BRANLIEST ASAP!!!
posledela

Answer:

Domain: (-3,-3,0,4)

Range: (-5,0,1,7)

Function: No

Step-by-step explanation:

Because there is a repeating -3 in the domain.

Brainliest please!

6 0
3 years ago
Other questions:
  • What is the sum for a1=? R=? And n=?
    12·2 answers
  • The graph of a system of equations with the same slope will have no solutions
    5·2 answers
  • What is -13 equal to
    7·1 answer
  • Which of the following equations represent a line that has a slope of –5 and that passes through (2, –6)? Check all of the boxes
    15·1 answer
  • Find the domain of the function. (Enter your answer using interval notation.) f(x) = 7 − 1 2 x if x ≤ 2 8x − 4 if x &gt; 2 g
    10·1 answer
  • Find the coordinates of the foot of the perpendicular from (6,8) the line through(1,5) and (9,3)​
    7·1 answer
  • A car is 180 inches long. a truck is 75% longer then the car. How long is the truck?
    10·2 answers
  • Which value from the list below, when substituted for x, would represent an acute triangle with side lengths x, x+ 4, and 20? As
    11·2 answers
  • Write each fraction number as a decimal write each fraction number as a decimal 4/33
    10·1 answer
  • PLSS HELP IF YOU TURLY KNOW THISS
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!