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Ratling [72]
3 years ago
14

Please help with the question below in the picture.

Mathematics
1 answer:
jarptica [38.1K]3 years ago
8 0

9514 1404 393

Answer:

  64 lb/ft³

Step-by-step explanation:

To find the pounds per cubic foot, divide the number of pounds by the number of cubic feet:

  192 lb/(3 ft³) = 64 lb/ft³

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Solve: 5 + n > 2
tiny-mole [99]

\\ \sf\longmapsto 5+n>2

  • We have to find n
  • Take 5 to right side
  • sign will be changed

\\ \sf\longmapsto  n>2-5

  • Simplify

\\ \sf\longmapsto n>-3

3 0
3 years ago
Find the Sum:<br> (20 - 6) + 3(c + 8)
RideAnS [48]

Answer:

38 + 3c

Step-by-step explanation:

  1. Apply the distributed property: (20 - 6) + 3c + 24
  2. 20 - 6 = 14
  3. Plug 14 in: 14 + 3c + 24
  4. Combine like terms: 38 + 3c

I hope this helps!

6 0
3 years ago
Write the general equation for the circle that passes through the points:
kiruha [24]

Answer:

The answer to your question is     x² + y² - 8x - 6y = 0

Step-by-step explanation:

Data

P (1, 7)

Q (8, 6)

R (7, -1)

Use the general equation of the Circle

                            x² + y² + Dx + Ey + F = 0

Process

1.- Substitute each point in the general equation and simplify

For P                                  

                          (1)² + (7)² + D + 7E + F = 0

                            1 + 49 + D + 7E + F = 0

                                 50 + D + 7E + F = 0

                                       D + 7E + F = -50             Equation l

For Q

                           (8)² + (6)² + 8D + 6E + F = 0

                            64 + 36 + 8D + 6E + F = 0

                            100 + 8D + 6E + F = 0

                                    8D + 6E + F = -100         Equation ll

For R

                           (7)² + (-1)² + 7D - E + F = 0

                           49 + 1 + 7D - E + F = 0

                                50 + 7D - E + F = 0

                                         7D - E + F = -50       Equation lll

Solve the system of equations, I do not include the process but the solutions are

D = -8   E = -6   F = 0

-Substitution

                       x² + y² - 8x - 6y = 0

6 0
3 years ago
If a series of rigid transformation maps ∠F onto ∠C where ∠F is congruent to ∠C, then which of the following statements is true?
pochemuha

Answer:

BC ~ DE because of similar transformation

Step-by-step explanation:

ABC and DEF are not similar transformations the second one is wrong, the third one is wrong because. The last one ios right because by deduction it is.

6 0
3 years ago
Read 2 more answers
Over which interval is the graph of f(x)=-x^2+3x+8
loris [4]

Answer:

The answer for this question is (-infinity,1.5)

Step-by-step explanation:

because  when f(x) is increasing f'(x)  > 0

-2x + 3 > 0

-2x > -3

x< 3/2 or 1.5

6 0
3 years ago
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