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
Allushta [10]
3 years ago
7

A radio telescope has a parabolic surface. If it is 1m deep and 16m wide how far is the focus from the vertex?

Mathematics
1 answer:
Mrac [35]3 years ago
6 0
Basing on the description, a parabola opening up with vertex at origin, the formula with vertex at origin is used, x^2 = 4py. p is the focus and so with the dimensions given, we obtain a 0.25 and that is the distance of the focus to the vertex.
You might be interested in
"In quadrilateral QRST, m∠Q is 68°, m∠R is (3x + 40)°, and m∠T is (5x − 52)°. What are the measures of ∠R , ∠S , and ∠T ? Write
34kurt
TQRS is an inscribed quadrilateral.
5 x - 52° + 3 x + 40° = 180°
8 x - 12° = 180°
8 x = 180° + 12°
8 x = 192°
x = 192° : 8 = 24°
m∠ R = 3 · 24° + 40° = 112°
m∠ T = 5 · 24° - 52° = 68°
m∠ S = 360° - ( 68° + 68° + 112° ) = 112°
Answer:  
m∠R, m∠S, m∠T = 112°, 112°, 68°.
4 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through (2,5) and (3,6).
earnstyle [38]

Answer:

1

Step-by-step explanation:

hope this help:) I use slop formula

5 0
3 years ago
Read 2 more answers
HELP HELP HELP PLS :(
Sphinxa [80]
Its 216 square feet because 24 x 18 / 2 = 216 (divided by two because its a triangle)
7 0
3 years ago
Read 2 more answers
9. Using a twenty sided number cube, what is the probability that you will roll an even number or
IceJOKER [234]

Answer:

0.85

Step-by-step explanation:

total samples cases = 20

chances that are even or odd prime are 17 chances

2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20

probability = 17/20

= 0.85

3 0
2 years ago
At 8:30 A.M.., Briana started filling a 2,800-gallon pond. At 10:30 A.M., she had filled 1,400 gallons. At what time will the po
Sati [7]

Answer:

12:30 pm

Step-by-step explanation:

8:30 am pond is empty

10:30 am pound is 1,400 gallons full

  time?    pound is 2,800 gallons full

from 8:30 to 10:30 are 2 hours so the rate of filling up is

             1,400 gallons in 2 hours

to have a whole pond filled we need another 2 hours because

in another 2 hours will have another 1,400 gallons so a pound full. 8:30 am + 2hours = 12:30 pm

8:30 am pond is empty

10:30 am pound is 1,400 gallons full

12:30 pm pound is 2,800 gallons full.

3 0
2 years ago
Other questions:
  • The equation a = 1/2(b1 + b2)h can be used to determine the area, a, of a trapezoid with height, h, and the base lengths, b1 and
    6·1 answer
  • the insurance company pays the forecast of 3900 prescriptions claims out of 4500 prescription claims submitted what is the rate
    5·1 answer
  • tony has 7/8 of a candy bar. he wants to split the bar into servings that are 3/10 of the bar. how many servings can he make?
    6·1 answer
  • Cheryl deposits $7,500 into the bank. She cannot withdraw or deposit any more money for 6 years. She earns 6% interest during th
    9·1 answer
  • Name the ray in the figure
    11·2 answers
  • I’m confused on this one
    5·1 answer
  • What is the area of a circle with a diameter of 10
    8·2 answers
  • Find the measurement indicated in each parallelogram.<br> VH=3x+4<br> VX=7x+3<br> find VX
    13·1 answer
  • Need help thx will give Brainiest
    10·2 answers
  • The Egyptian pyramids have square bases and are roughly twice as wide as they are tall. If a miniature model of the pyramid is 3
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!