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
Aliun [14]
4 years ago
11

HELPP!

Mathematics
2 answers:
Mashutka [201]4 years ago
4 0

Answer

when you place a source of signal at a focal point of an ellipse, the signal will be reflected to the other focal point position

When you place a source of rays as a signal at the focal point of a hyperbola, the ray will be reflected directly away from the other focal point

When you place a source of rays as a signal at one of the parabola focus, the ray will be reflected in lines that are parallel to the axis of the parabola.

Digiron [165]4 years ago
4 0

Explanation:

In each case, rays through one focus are reflected along a line through the other focus.

The second focus of a <em>parabola</em> is at infinity, so rays through the focus are reflected along parallel paths.

You might be interested in
Which of these statements is correct?
tatuchka [14]

Answer:

The system of linear equations 8x - 3y = 10 and 16x - 6y = 22 has no solution is correct.

Step-by-step explanation:

<em>1) The system of linear equations 6x - 5y = 8 and 12x - 10y = 16 has no solution.</em>

<em>Solve these linear equations simultaneously</em>

<em>Step 1 : Find y in terms of x from any one equation</em>

6x - 5y = 8

y = <u>8 - 6x</u>

        -5

<em>Step 2 : Substitute y in terms of x from step 1 in the second equation.</em>

16x - 6y = 22

16x - 6 (<u>8 - 6x)</u> = 22

              -5

80x - 48 + 36x = 22 x -5

94x = 43

x = 0.457

<em>This statement is incorrect as it does have a solution.</em>

<em>2) The system of linear equations 7x + 2y = 6 and 14x + 4y = 16 has an infinite number of solutions.</em>

<em>Solve these linear equations simultaneously</em>

<em>Step 1 : Find y in terms of x from any one equation</em>

7x + 2y = 6

y = <u>6 - 7x</u>

        2

<em>Step 2 : Substitute y in terms of x from step 1 in the second equation.</em>

14x + 4y = 16

14x + 4(<u>6 - 7x)</u> = 16

              2

14x + 12 - 14x = 16

0 ≠ 4

<em>This statement is not true as there are no solutions.</em>

<em>3) The system of linear equations 8x - 3y = 10 and 16x - 6y = 22 has no solution.</em>

<em>Solve these linear equations simultaneously</em>

<em>Step 1 : Find x in terms of y from any one equation</em>

8x - 3y = 10

x = <u>10 + 3y</u>

        8

<em>Step 2 : Substitute x in terms of y from step 1 in the second equation.</em>

16x - 6y = 22

16(<u>10 + 3y)</u> - 6y = 22

       8

20 + 6y - 6y = 2

0 ≠ -18

<em>This statement is true because there are no solutions</em>

<em>4) The system of linear equations 9x + 6y = 14 and 18x + 12y = 26 has an infinite number of solutions.</em>

<em>Solve these linear equations simultaneously</em>

<em>Step 1 : Find x in terms of y from any one equation</em>

9x + 6y = 14

x = <u>14 - 6y</u>

        9

<em>Step 2 : Substitute x in terms of y from step 1 in the second equation.</em>

18x + 12y = 26

18 (<u>14 - 6y)</u> + 12y = 26

        9

8 - 12y + 12y = 26

0 ≠ 18

<em>This statement is incorrect because there are no solutions. It does not have infinite number of solutions.</em>

<em>!!</em>

8 0
3 years ago
Read 2 more answers
Someone pls help me, with this science problem
andrew11 [14]

Answer:

I think it is C-D.

Step-by-step explanation:

3 0
3 years ago
Simply 22.5+7(n-3.4)
Bumek [7]
The answer is 7n-1.3. Use the distributive property to multiply 7 by n-3.4. Subtract like terms and it's simplified
3 0
4 years ago
Assume a population of 46, 51, 53​, and 59. Assume that samples of size nequals=2 are randomly selected with replacement from th
Katarina [22]

Answer:

Step-by-step explanation:

There are four values 46, 51, 53, 59

we have to draw 2 sampler with replacement

sampler     median     samler     median

46.46              46          53.46         49.5

46.51               48.5        53.51          52

45..53              49.5        53.53         53

46.59               52.5        53.59         56

51.46                 48.5        59.46        52.5

51.51                   51           59.51           55

51.53                   52          59.53          56

51.59                   55          59.59          59

sampling distribution of the median

median                   probability

46                               1/16

48.5                             2/16      

49.5                             2/16  

52.5                             2/16    

51                                  1/16

52                                2/16

55                                 2/16

53                                  1/16

56                                  2/16

59                                   1/16    

6 0
3 years ago
Help me please ......,,,,
xz_007 [3.2K]

Answer:

Step-by-step explanation: for #1 its 6

for #2 it 12

#3 is 818

#4 is 423

#5 is 87

#6 is 500  

hope this helped!

3 0
3 years ago
Read 2 more answers
Other questions:
  • 2. A spike train, commonly used to study neural activity, is a sequence of recorded times at which a neuron fires an action pote
    7·1 answer
  • What is the equation of a line that passes through (.5,4.25) and (2,18.5) and has a y-intercept of -.5
    14·1 answer
  • What is the length of side BC? PLEASE HELP!
    9·1 answer
  • 1/3(x-10)=-4 solve for x with steps
    11·1 answer
  • A street vendor sells two types of newspapers, one for $.25 and the other for $.40. If she sold 100 newspapers for $28.00, how m
    5·2 answers
  • 4. Calculate the volume of material used in making 100 ft of 4-in. type M, copper tubing.
    8·1 answer
  • Jk is perpendicular to xy at its midpoint m. choose the answer that includes the correct responses.
    5·1 answer
  • Sun estimated the quotient of –23.514 and –3.98 by rounding each to the nearest integer. Which equation shows the correct estima
    9·2 answers
  • 50 m
    15·2 answers
  • Given, f(x) = x²,describe the transformation of f(x) to f (x - 1) + 4 using key features of the graph.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!