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
attashe74 [19]
3 years ago
7

14. It costs a pool cover manufacturer $0.15 per square foot for the material they use to make pool covers. If a certain circula

r pool requires a cover with a 24-foot diameter, find the cost for the material
Mathematics
1 answer:
laila [671]3 years ago
6 0

Answer:

$2.83

Step-by-step explanation:

Diameter of the pool = 24ft

Cost of 1 ft² = $0.15

Area of the pool=?

But the pool is a circular pool,

Area of a circle = Πr² or πd²/4

π = 3.142

Area of the pool = (π * 24) / 4

Area = (3.142 * 24) / 4

Area = 18.85ft²

If 1ft² = $0.15

18.85 = $x

x = (18.85 * 0.15) / 1

x = $2.8275 = $2.83

The cost of the pool is $2.83

You might be interested in
Puthina Unge bought a new Compaq computer system on sale for $1,770. It was advertised as 30% off the regular price. What was th
Vika [28.1K]
The answer is $2300.99
4 0
3 years ago
For a triangle to be classified as equilateral, what must all three angles measure? Do not include the degree symbol in your
OleMash [197]

Answer:

I think the answer is 60.

8 0
3 years ago
1.8 = 2.1h - 5.7 - 4.6h <br> h= __
Blababa [14]

Answer:

how are you doing

Step-by-step explanation:

7 0
3 years ago
Which algebraic expression is a polynomial with a degree of 3?
Irina18 [472]

Option a: 4x^{3} -\frac{2}{x}

Option b: 2y^{3} +5y^{2} -5y

Option c: 3y^{3} -\sqrt{4y}

Explanation:

The highest degree of a polynomial is the largest exponent of that variable.

Now, we shall determine the polynomial with degree 3.

Option a: 4x^{3} -\frac{2}{x}

From the expression 4x^{3} -\frac{2}{x}, the highest degree of the polynomial is 3.

Hence, 4x^{3} -\frac{2}{x} is a polynomial with a degree of 3.

Hence, Option a is the correct answer.

Option b: 2y^{3} +5y^{2} -5y

From the expression 2y^{3} +5y^{2} -5y, the highest degree of the polynomial is 3.

Hence, 2y^{3} +5y^{2} -5y is a polynomial with a degree of 3.

Hence, Option b is the correct answer.

Option c: 3y^{3} -\sqrt{4y}

From the expression 3y^{3} -\sqrt{4y}, the highest degree of the polynomial is 3.

Hence, 3y^{3} -\sqrt{4y} is a polynomial with a degree of 3.

Hence, Option c is the correct answer.

Option d: -xy\sqrt{6}

From the expression -xy\sqrt{6}, the highest degree of the polynomial is 1.

Hence, -xy\sqrt{6} is a polynomial with degree 1.

Hence, Option d is not the correct answer.

5 0
3 years ago
Read 2 more answers
Find the angle between u = (8.- 3) and v = (-3,- 8) Round to the nearest tenth of a degree.
Nimfa-mama [501]

Answer:

<h2>90°</h2>

Step-by-step explanation:

First you must calculate the module or the magnitude of both vectors

The module of u is:

|u|=\sqrt{(8)^2 + (-3)^2} \\\\|u|=\sqrt{64 + 9}\\\\|u|=8.544

The module of v is:

|v|=\sqrt{(-3)^2 + (-8)^2} \\\\|u|=\sqrt{9 + 64}\\\\|u|=8.544

Now we calculate the scalar product between both vectors

u*v = 8*(-3) + (-3)*(-8)\\\\u*v = -24+ 24=0

Finally we know that the scalar product of two vectors is equal to:

u*v = |u||v|*cos(\theta)

Where \theta is the angle between the vectors u and v. Now we solve the equation for \theta

0 = 8.544*8.544*cos(\theta)\\\\0 = cos(\theta)\\\\\theta= arcos(0)\\\\\theta=90\°

the answer is 90°

Whenever the scalar product of two vectors is equals to zero it means that the angle between them is 90 °

5 0
3 years ago
Read 2 more answers
Other questions:
  • Write this decimal in a fraction in its simplest form.
    7·1 answer
  • Whats after hundreds thousands
    5·1 answer
  • You've just been hired by the Illinois athletic department to fertilize their
    8·1 answer
  • HELP ASAP!! ILL MARK YOU BRAINLIEST IF CORRECT :)
    6·2 answers
  • It takes 8 minutes to fill an empty aquarium to a depth of
    10·2 answers
  • 1. 8x^2 + 10x - 9<br>2. 3x^4 - 14x^2 - 9<br>3. 4x^2 + 5x - 9<br>4. 8x^2 + 10x - 18
    11·2 answers
  • 8. Calculate<br> 341) + 35)<br> ༣༨
    15·2 answers
  • Evaluate the expression: x +y + z (if x =33, y = -28, and z =40)
    9·1 answer
  • What is the answer please?
    13·1 answer
  • Figure 1 is similar to figure 2. What is TS?<br>1 unit<br>4 units<br>8 units<br>2 units​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!