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
kaheart [24]
3 years ago
15

A dish tv satellite dish is the shape of a paraboloid. the dish is 36 inches wide, and 8 inches deep. how many inches should the

receiver be located from the vertex for optimal reception? (round to the nearest thousandth)

Mathematics
1 answer:
MrRa [10]3 years ago
4 0
Refer to the diagram shown below. It shows a vertical cross-section of the paraboloid through its axis of symmetry.

Let the vertex of the parabola be at the origin. Then its equation is of the form
y = bx²

Because the parabola passes through (18,8), therefore
8 = b(18²)
b = 0.02469
The parabola is y = 0.02469x².

The receiver should be placed at the focal point of the paraboloid for optimal reception.
The y-coordinate of the focus is
a = 1/(4b) = 1/0.098765 = 10.125 in

Answer: The receiver is located at 10.125 inches from the vertex.

You might be interested in
Is 4/10 bigger than 4/100
lyudmila [28]

Answer:

Yes

Step-by-step explanation:

4/10 = 0.4

4/100 = 0.04

0.4 > 0.04

Therefore the answer is yes

4 0
3 years ago
Read 2 more answers
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Yanka [14]

Answer:

The answer is A. k = 4.25.

Step-by-step explanation:

To find proportionality, solve for 8.5 divided by 2 and 17 divided by 4.

Both of those answers are 4.25, so that would be the final answer.

<h2><u><em>PLEASE MARK AS BRAINLIEST!!!!!</em></u></h2>
3 0
2 years ago
Read 2 more answers
In a company, there are 50 employees and some committees. If each employee belongs
Mrrafil [7]

Step-by-step explanation:

6x50

=300÷10

=30

Mark me brainliest !!!

7 0
2 years ago
Help! Please!
fomenos

Answer:

is the board game to BOARD for Neal so you have 1.54

Step-by-step explanation:

its ligit 5.5

6 0
3 years ago
you have $15,000 to invest for 5 years at 5.5% annual interest rate that is compounded continuously. how much money will you hav
MissTica

Answer:

$19,747.96

Step-by-step explanation:

You are going to want to use the continuous compound interest formula, which is shown below:

A = Pe^{rt}

<em>A = total</em>

<em>P = principal amount</em>

<em>r = interest rate (decimal)</em>

<em>t = time (years)</em>

<em />

First, lets change 5.5% into a decimal:

5.5% -> \frac{5.5}{100} -> 0.055

Next, plug in the values into the equation:

A=15,000e^{0.055(5)}

A=19,747.96

After 5 years, you will have $19,747.96

4 0
3 years ago
Other questions:
  • Mariylnn is going to paint a wall in her bedroom. The wall is 15 feet long and 8 feet tall. The window takes up an area 6 feet l
    5·1 answer
  • What is 59.7% of 6010
    14·2 answers
  • Find n (A) for the set A = {0,1,2,3,4}​
    12·1 answer
  • After five years of earning interest at an annual rate of 4%, an investment has earned $1,200 in interest. Determine the amount
    9·2 answers
  • 230 divide 30 equals
    10·2 answers
  • Write the expanded form of the expression<br> y(0.25 +6)
    5·1 answer
  • 12 divided by 1/2 is
    8·2 answers
  • Layla calculates the mean of the ages of 10 students on her bus, and she discovers the average(mean) age is 12.8. What will happ
    10·1 answer
  • Julio is paid 1.1 times his normal hourly rate for each hour he works over 28 hours in a
    11·1 answer
  • What is 0.74 divided by .08
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!