MATHEMATICS HIGH SCHOOL

Where in real life do people use parabolas?
*apart from maths classrooms and mathematicians.

Answers

Answer 1
Answer: The mirrors of reflecting telescopes are parabolas.
The microwave "dish" antennas on cell towers are parabolas. So are the little dishes on garage roofs and the corners of houses, receiving satellite TV all over the country.
The shell behind the light bulb in every car headlight is a parabola.

Related Questions

What is the missing exponent? (2^-5) ____= 2^-15
Graph x2 + y2 = 9. What are its lines of symmetry?
81 is 56% percent of what
As a member of a music club, you can order CDs for $14.99 each. The music club also charges $4.99 for each shipment. The expression 14.99n + 4.99 represents the cost of n CDs. Find the total cost for ordering 3 CDs.
The formula d = ft can be used to calculate the distance (d) an object travels using its rate of speed (r) and the time it travels (t). Using the formula, which shows the rate the object traveled?

A store is selling lemons at 2 for $3. Each lemon yields 2 tablespoons of lemon juice. How much will it cost to buy enough lemons to make a 9-inch lemon pie requiring 1/2 cup of lemon juice?

Answers

Answer:

It will cost $6 to buy enough lemons.

Step-by-step explanation:

Consider the provided information.

To make a 9-inch lemon pie requiring 1/2 cup of lemon juice.

1 cup = 16 tablespoons

1/2 cup = 8 tablespoons

That means we only need 8 tablespoons.

Each lemon yields 2 tablespoons of lemon juice.

Number of lemon required =8 ÷ 2 = 4

That means we need only 4 lemon.

Store is selling lemons at 2 for $3 that means 4 lemons for $6.

Hence, it will cost $6 to buy enough lemons.

Answer:

6 dollars to buy enough lemons

Step-by-step explanation:

-1 6/15 - 7 3/10
what is it as a fraction and decimal

Answers

MODERATOR :    PLEASE DELETE

I don't wish to answer this question at this time.

Given the following mAB = mBC= mCD in circle F what is the measure of angle AFB

Answers

50° is the measure of angle AFB

Write the equation of the line that passes through the given points. (0,-5) and (8,0)​

Answers

Answer:

y=(5)/(8)x-5

Step-by-step explanation:

You're given two points, using that you can use the slope-finding formula:

slope=((y^(2) - y^(1)) )/((x^(2) - x^(1)))

After that, match up the y-coordinates with each other and the same goes for the x-coordinates. It should look something like this:

slope = ((0-(-5)))/((8-0)) \n\n=(5)/(8)

5/8 is your slope. Using the general slope formula y=mx + b, you know that m is the slope and b is the y-intercept. So now you know your slope, plug it into the formula, along with one of the given points. In this case, I will be using (8, 0) because it is easier to solve.

m = (5)/(8)\n \ny = ((5)/(8) )x+b\n(8, 0)\n(0) = (5)/(8)(8) + b\n 0 = 5 + b\n\n-5 =b\n \ny=(5)/(8)x-5

You can see I replaced the x and y with the given values accordingly. Then you simplify by subtracting the five on both sides and your y-intercept is -5. Then combine your slope and y-intercept to get your answer!

Hope that helped!

-Bob Ross

19. (3,5), (2,-2)write an equation in slope-intercept form for the line that passes through each pair of points

Answers

Answer:

y=7x−16       the answer ;)

How many lines of symmetry does the letter R have?

Answers

The letter R has 0 lines of symmetry............

Answer:

R has no lines of symmetry. There is no angle at which you could put a line through R and make it symmetrical.

hope this helps! <3
Other Questions
Find the surface area of the prism
for every ton of paper that is recycled, 17 trees are saved.Is it a discrete or a continuous relationship?
Please help figure out statement and proof write them down in section 20 POINTS
Pj will begin her cake deliveries at 12:20. She asked me to remind her 30 minutes befor she has to leave. What time should I remind pj about her deliveries