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
Reika [66]
3 years ago
10

If each person takes up 2.25 square feet of space, how many people can fit into an area that is 15 feet by 30 feet?

Mathematics
1 answer:
3241004551 [841]3 years ago
7 0
D is the answer Multiply 15 times 30 and divide by 2.25
You might be interested in
Every repair bill at Chuckie’s Service Spot includes a fixed charge for an estimate of the repairs plus an hourly fee for labor.
lakkis [162]

Answer:

overpriced is all I can say.....

8 0
3 years ago
A catering company charges $550 for 20 guests
sladkih [1.3K]
775-550 = 225 for an extra 15 guests
225/15= 15$ per person
6 0
3 years ago
When the sample size and the sample proportion remain the same, a 90 percent confidence interval for a population proportion p w
deff fn [24]

Answer:

A 90% confidence interval for <em>p</em> will be <u>narrower </u>than the 99% confidence interval.

Step-by-step explanation:

The formula to compute the (1 - <em>α</em>) % confidence interval for a population proportion is:

CI=\hat p\pm z_{\alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

Here \hat p is the sample proportion.

The margin of error of the confidence interval is:

MOE= z_{\alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

The MOE is dependent on:

  1. Confidence level
  2. Standard deviation
  3. Sample size

The MOE is directly related to the confidence level and standard deviation.

So if any of the two increases then the MOE also increases, thus widening the confidence interval.

And the MOE is inversely related to the sample size.

So if the sample increases the MOE decreases and vice versa.

It is provided that the sample size and the sample proportion are not altered.

The critical value of <em>z</em> for 90% confidence level is:

z_{\alpha/2}= z_{0.10/2}=z_{0.05}=1.645

And the critical value of <em>z</em> for 99% confidence level is:

z_{\alpha/2}= z_{0.05/2}=z_{0.05}=1.96

So as the confidence level increases the critical value increases.

Thus, a 90% confidence interval for <em>p</em> will be narrower than the 99% confidence interval.

6 0
3 years ago
Please help me! 7th grade science!
Minchanka [31]

Answer:

The answer is 20 watts

Step-by-step explanation:

power=joules/seconds

60/3=20

4 0
3 years ago
What’s the LMC of 11 and 44
juin [17]

Answer:

The answer is 44.  The least common mutiple (lcm) of 11 and 44 is 44.  Please mark me brainliest! :)

3 0
3 years ago
Read 2 more answers
Other questions:
  • How do u find the answer to this
    9·1 answer
  • There are 72 girls and 60 boys waiting to see A play in the school auditorium. They are seated in rows in the auditorium with th
    6·2 answers
  • (15 points)
    7·1 answer
  • A horse trots in a circle around its trainer at the end of a 22-foot-long rope. Find the area of the circle that is swept out. R
    9·2 answers
  • Which of these quardinates could be the<br> Y intercept of this graph
    13·1 answer
  • Find the perimeter of the quadrilateral.
    9·1 answer
  • Please Help!<br><br> Car X travels 174 miles in 3 hours.
    13·1 answer
  • The width of a rectangular field is 20 feet less than its length. The area of the field is 12,000 ft? What is the length of the
    8·2 answers
  • Help me please... I don’t get dis T^T
    6·1 answer
  • Please help? What is the tangent ratio of angle B?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!