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
nignag [31]
2 years ago
7

the width of a rectangular yard is 3 yards more than twice its length. the perimeter of the garden is 192 yards

Mathematics
1 answer:
Bas_tet [7]2 years ago
6 0

Answer:

Step-by-step explanation:

W = 2L + 3, and:

P = 2W + 2L = 192

Substituting 2L + 3 for W, we get:

P = 2(2L + 3) + 2L = 192, or

4L + 6 + 2L = 192, or:

6L = 186

L = 186/6 = 31

The length is 31, the width is 62 + 3, or 65

Therefore, the perimeter P is P = 2(31) + 2(65) = 130 + 62  = 192 (OK!)

You might be interested in
There are big spenders among University of Alabama football season ticket holders. This data set Roll Tide!! shows the dollar am
Bas_tet [7]

Using the z-distribution, as we have a proportion, the 95% confidence interval is (0.2316, 0.3112).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

We also consider that 130 out of the 479 season ticket holders spent $1000 or more at the previous two home football games, hence:

n = 479, \pi = \frac{130}{479} = 0.2714

Hence the bounds of the interval are found as follows:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2714 - 1.96\sqrt{\frac{0.2714(0.7286)}{479}} = 0.2316

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2714 + 1.96\sqrt{\frac{0.2714(0.7286)}{479}} = 0.3112

The 95% confidence interval is (0.2316, 0.3112).

More can be learned about the z-distribution at brainly.com/question/25890103

7 0
2 years ago
I give you all these points, just give me the correct answer
agasfer [191]
I might be wrong but I think it is 50 .
4 0
2 years ago
Read 2 more answers
Which property justifies this statement?
Katen [24]
I know its not division,addition,multiplication,with the process of elimination its reflexive

5 0
3 years ago
Read 2 more answers
Can someone help me?
Readme [11.4K]

Answer:

B

Step-by-step explanation:

The answer is B because if you move two times to the right it gives you 0.09 like the eqution.

But scientific notation requires number without decimal, so the answer cannot be E because 0.9 is a decimal.

Just reminder: B and D have the same result!! just different coefficient

5 0
3 years ago
Read 2 more answers
Two different types of polishing solutions are being evaluated for possible use in a tumble-polish operation for manufacturing i
ad-work [718]

Answer:

p-value: 1.000

There is enough evidence at the 1% level of significance to suggest that the proportions are not equal.

Step-by-step explanation:

We will be conducting a difference of 2 proportions hypothesis test

The hypothesis for this test is:

H0:  p1 - p2=0

Ha:  p1 - p2  ≠0

(p1 ) = 252/300 = 0.84

(p2) = 195/300 = 0.65

This is a 2 tailed test with a significance level of 1%.  So our critical values are:  z > 2.575  and z < -2.575

See the attached photo for the calculations for this test

5 0
2 years ago
Other questions:
  • How many pizzas did six children if each child ate 3/8 over of a pizza
    15·1 answer
  • In the length of each leg of an isosceles triangle is 13 and the base is 24, the length of the altitude to the base is
    5·1 answer
  • Help!!! i don’t understand how i would be able to find rt
    6·1 answer
  • If 35% of the students attended the ceremony. What fraction of the students attended the ceremony? Help, please!
    10·1 answer
  • A triangle has a base of 15 feet and height of 9.5. what is the area of the triangle
    10·1 answer
  • To complete her holiday wrapping, Bella needs identical
    5·1 answer
  • When multiplying a binomial by a trinomial, is the degree of the product<br> always 5? Explain.
    12·2 answers
  • Mary's bill at a restaurant was $47.59. Mary wants to leave a 20% tip.
    14·2 answers
  • Which best describes the following sentence?
    9·1 answer
  • Solve for x.<br> A. 6/3<br><br> B. 5<br><br> C. 12<br><br> D. 12.5
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!