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
FromTheMoon [43]
2 years ago
5

A group of engineers is building a parabolic satellite dish whose shape will be formed by rotating the curve y=ax2 about the y-a

xis. If the dish is to have a 20-foot diameter and a maximum depth of 2 feet, find the value of a and the surface area (in square feet) of the dish.

Mathematics
1 answer:
Blizzard [7]2 years ago
7 0

Answer:

Step-by-step explanation:

See attached file .

You might be interested in
In ΔJKL, j = 93 cm, k = 82 cm and l=86 cm. Find the measure of ∠J to the nearest degree.
zhuklara [117]

Answer:

5

Step-by-step explanation:

Answer:

85t

Step-by-step explanation:

1. Volume of a cone: 1. V = (1/3)πr2h 2. Slant height of a cone: 1. s = √(r2 + h2) 3. Lateral surface area of a cone: 1. L = πrs = πr√(r2 + h2) 4. Base surface area of a cone (a circle): 1. B = πr2 5. Total surface area of a cone: 1. A = L + B = πrs + πr2 = πr(s + r) = πr(r + √(r2 + h2))

hope this helps

8 0
2 years ago
Read 2 more answers
Need help on maths question asap
Zigmanuir [339]

Answer:

276

Step-by-step explanation:

1 - 1/3 - 5/12 = 1/4

1/4 is the fraction of the vegetarian guests

1 is the total number of guests

so you multiply 69 by 4 and 276 is your answer

let me know it it is correct :)

4 0
3 years ago
2 1/5 + 1 3/5 = ??? Plz help
jok3333 [9.3K]

Answer:

3 \frac{4}{5}

Step-by-step explanation:

1) Add the whole numbers first.

3  + \frac{1}{5}  +  \frac{3}{5}

2) Join the denominators.

3 +  \frac{1 + 3}{5}

3) Simplify.

3 \frac{4}{5}

hence, the answer is 3 4/5.

5 0
2 years ago
Choose the more precise measurement.<br><br> 37 T <br><br> 56 lb
Gnesinka [82]

Answer:

56lb

Step-by-step explanation:

there are 2000lbs in a ton so a measurement in pounds is more precise

5 0
2 years ago
Select the correct answer
Zepler [3.9K]

Answer:

number 3

Step-by-step explanation:

thats my calcue

7 0
2 years ago
Read 2 more answers
Other questions:
  • Solve the equation 3(4 + 3r)
    7·1 answer
  • Holly had $5,000 in her bank account. She withdrew $800 to buy a new bike. What is the percent decrease in the balance of her ac
    8·2 answers
  • The height of 5th grade boys is normally distributed with mean μ=57 inches and standard deviation σ=2 inches. What is the probab
    13·1 answer
  • Pablo Picasso obtained a loan of $2,400 to install a new roof on his home. The interest rate is 12% and the monthly payment is $
    11·1 answer
  • A shirt is originally priced at $24.50 a shirt goes on sale for 30% off the original price how much money to the nearest cent do
    11·1 answer
  • Pedro cut a sheet of poster board into 10 equal parts. His brother used some of the poster board and now
    12·1 answer
  • Which property was used to simplify the expression?
    5·1 answer
  • What is 6 fewer than 3 times a number
    10·2 answers
  • If the mean, median, and mode are all
    5·1 answer
  • The angle measure for 85 is
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!