answer.
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
Komok [63]
2 years ago
13

An artist cuts 4 squares with sides of length x ft from the corners of a 12 ft-by-18 ft rectangular piece of sheet metal. She be

nds up the sides and welds the corners to form a rectangular garden fountain that is x ft high. Write and simplify a function for the volume V of the fountain in terms of x
Mathematics
1 answer:
ehidna [41]2 years ago
6 0

Answer:

V = 216x - 60x^2 + 4x^3

Step-by-step explanation:

The volume V of the fountain is equal to:

V = L*W*h

Where L is the lenght of the fountain, W is the width of the fountain and h is the high of the fountain

We already know that h is equal to x. On the other hand, if we cut a square with side of length x, L and W are calculated as:

L = 18 - 2x

W = 12 - 2x

So, replacing L, W and h on the equation of the volume, we get:

V = (18-2x)*(12-2x)*x

Finally, simplifying the function we get:

V = ((18*12)+(18*(-2x))+(-2x*12)+((-2x)*(-2x)))*x

V = (216-36x-24x+4x^2)*x\\V = (216-60x+4x^2)*x\\V = 216x - 60x^2 + 4x^3

You might be interested in
A new drug on the market is known to cure 30% of patients with cervical cancer. If a group of 18 patients is randomly selected,
Dima020 [189]

Answer:

Probability cured of cervical cancer =  18C0 (0.30)⁰(0.70)¹⁸ +  18C1(0.30)(0.70)¹⁷

Step-by-step explanation:

Given:

Patients cured = 30% = 0.30

Number of patients (n) = 18

Probability cured of cervical cancer = P(X≤1)

Probability cured of cervical cancer  = P(X=0) + P(X=1)

Probability cured of cervical cancer =  18C0 (0.30)⁰(0.70)¹⁸ +  18C1(0.30)(0.70)¹⁷

5 0
2 years ago
Which of the following is NOT a property of the​ chi-square distribution?
LenKa [72]

Answer:

A) The mean of the​ chi-square distribution is 0

A) is not a property of chi square distribution.

Step-by-step explanation:

We have to find the properties of a chi square test.

A) False

The mean of a chi square distribution is equal to the degree of freedom.

B) True

The​ chi-square distribution is non symmetric.

C) True

The chi square value can be zero and positive.

It can never be negative because it is based on a sum of squared differences .

D) True

The​ chi-square distribution is different for each number of degrees of​ freedom.

When we are working with a single population variance, the degree of freedom is n - 1.

5 0
2 years ago
At a certain company, the annual winter party is always held on the second of Friday of December. What is the latest possible da
vitfil [10]

Answer:

The latest possible date is December, 14th.

Step-by-step explanation:

Notice that the second Friday of December is n+7, where n is the date for the first Friday of December. So, the latest the first Friday, the latest the second. As the weeks have seven days, the first Friday will be between 1st and 7th of each month. So, the latest first Friday will be 7th. Therefore, the latest second Friday will be 14th.

7 0
2 years ago
According to Time magazine, the annual global seafood consumption rose from 22 pounds per person in the 1960s to 38 pounds per p
svetoff [14.1K]
First we need to find how much the annual global seafood consumption (agsc) rose, which is 16 pounds

now, we find how much percent of 22 is 16. we put it through a calculator and, rounded to the nearest tenth, get 72.7%

so, the percent increase is 72.7%
3 0
2 years ago
Read 2 more answers
A hospital bill is estimated to be $462.00. It ends up actually costing the patient $525.00. What is the percent error in the bi
Mamont248 [21]
In order to find the percent error, we need to first find the difference between what was expected and what is actually costed. We do this by subtracting:

525-462=63

So now we know that the expected amount was off by $63. To find the percent error, we need to take this $63, and divide it by the amount that was estimated. Let's do that now:

\frac{63}{462}=0.1364

However this is in decimal form. We need to multiply by 100 in order to get it in a percent:

0.1364*100=13.64%

Now we know that the percent error of the hospital bill estimate is 13.64%.
6 0
2 years ago
Other questions:
  • Pepper Jackie draws a map of the youth center building. The length of the building in her map is 6 inches. The actual length of
    6·2 answers
  • For 7 years, Sheri deposits $3350 at the end of each year into an account that earns 19.7% per year compounded annually. Determi
    12·1 answer
  • The height of an object t seconds after it is dropped from a height of 300 meters is s(t) = −4.9t2 + 300. (a) Find the average v
    6·1 answer
  • Three data entry specialists enter requisitions into a computer. Specialist 1 processes 42 percent of the requisitions, speciali
    6·1 answer
  • Ikeoluwa collected data on whether 656565 professional golfers have practiced for at least 10{,}00010,00010, comma, 000 hours in
    6·1 answer
  • Evelyn borrowed $30 from her mother to buy a sweater. After 3 weeks of babysitting, she pays her mother back $24. ​ What percent
    11·1 answer
  • Consider the two triangles. Triangles W U V and X Z Y are shown. Angles V U W and Y X Z are congruent. Angles U W V and X Z Y ar
    9·2 answers
  • Maya can run 18 miles in 3 hours, and she can bike 18 miles in 2 hours.
    13·1 answer
  • If you were to describe a translation of triangle ABCABC, what information would you need to include in your description? If you
    14·1 answer
  • 1+5+5VE+Y5-5U<br> Help me please
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!