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
Aleksandr-060686 [28]
3 years ago
12

a parabolic lamp is facing due east. The bulb (located at the focus) is 8 inches away from the vertex (located at the origin). t

he lamp has a diameter of 20 inches. Which is the depth of the dish?
Mathematics
1 answer:
True [87]3 years ago
7 0

9514 1404 393

Answer:

  3 1/8 inches

Step-by-step explanation:

For focus-vertex distance p, the equation of the parabola can be written ...

  y = x^2/(4p)

Here, we have p=8. We want to find the value of y when x=10 (the radius of the dish). That is ...

  y = (10^2)/(4·8) = 100/32 = 3 1/8

The dish is 3 1/8 inches deep.

You might be interested in
Gus started with a number he multiplied by 8 subtracted 12 divided by 4 and added 7 to get 50 show how to work backward to find
DanielleElmas [232]

Answer:

23

Step-by-step explanation:

This equation can be derived from the question

let a represent the initial number Gus started with

{[(a x 8) - 12] / 4 } + 7 = 50

subtract 7 from both sides of the equation

[(a x 8) - 12] / 4 } = 43

Multiply both sides of the equation by 4

(a x 8) - 12] = 172

Add 12 to both sides

8a =184

Divide both sides by 8

a = 23.

6 0
3 years ago
3(1)+2(_)=6<br><br> plz help on filling in the blank
TEA [102]

Answer:

x = 3/2

Step-by-step explanation:

Let's solve your equation step-by-step.

(3)(1)+2x=6

Step 1: Simplify both sides of the equation.

(3)(1)+2x=6

3+2x=6

2x+3=6

Step 2: Subtract 3 from both sides.

2x+3−3=6−3

2x=3

Step 3: Divide both sides by 2.

2x/2  3/2

x = 3/2

Hope this helps :)

7 0
3 years ago
What type of variable is the number of gallons of gasoline pumped by a filling station during a day? Select one: a. Qualitative
sammy [17]

Answer:

b. Continuous

Step-by-step explanation:

Continuous variable is a variable that can take on any value between its minimum value and its maximum value. A continuous variable is a type of quantitative variable used to describe data that is measurable while Discrete variables are countable in a finite amount of time. Now, justifying whether the gallons of gasoline pumped by a filling station during a day is continuous or discrete. The number of gallons of gasoline pumped by a filling during during a day is a continuous variable because it has a measurable volume which can take value from the minimum to maximum values of the total volume of gasoline the filling station have in the storage tank.

3 0
4 years ago
Leo has 11/3 cups of sugar. He uses 3/4 cups of sugar in a recipe. How much sugar does Leo have left?
Evgesh-ka [11]
It is 35/21 it shows that is can turn into a mixed number as well
7 0
3 years ago
Desert Shores has an elevation of -61.2 meters. Shatt al Gharsah has an elevation of -17.1 meters. Note that both places have ne
Firlakuza [10]

Answer:

A

Step-by-step explanation:

-61.2 < -17.1

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the area of a rectangle with length 1/2 and width 1/2
    11·2 answers
  • the problem is kamala had 5,026 grams  flour in a canister.she brought a 4,158 gram bag of flour.she poured some flour from the
    9·1 answer
  • What is 14/48 in lowest terms
    14·2 answers
  • The map shows the location of the airport and a warehouse in a city. Though not displayed on the map, there is also a factory 64
    14·2 answers
  • Which of the tables does NOT represent a function ?
    15·1 answer
  • ATTENTION
    13·2 answers
  • Round to the nearest tenth , if necessary.<br><br> 65% of 186 =
    6·2 answers
  • 3x - 1 = -5?
    12·1 answer
  • Please help no links or random stuff!!
    15·1 answer
  • Use the first five terms of the exponential series of ex and a calculator to approximate the value of e0.8 to the nearest hundre
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!