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Sophie [7]
3 years ago
13

Find the equation of a parabola with a focus at (0,–1) and a directrix at y = 4.

Mathematics
1 answer:
Minchanka [31]3 years ago
8 0

Answer:

2:)

Step-by-step explanation:

Bc it is

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If F= 1.8C + 32, Solve for C if F = 65​
FromTheMoon [43]

Answer:

1.8333

Step-by-step explanation:

F = 1.8C +32

C = (F - 32) ÷ 1.8

= (65-32) ÷ 1.8

=1.833

Just throw all the other things to the right, so that only C is on the left

6 0
2 years ago
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Solve for x: 3 over 3 x plus 1 over quantity x plus 4 equals 10 over 7x .
harina [27]
  3              1                   10
------ + --------------- =  ----------
 3x          x +4                 7x

      1            1                 10
    ------ + ------------ =  ----------
      x          x +4               7x


       x + 4 + x           10               
   ------------------ =  ----------
       x(x +4)             7x

       2x + 4                10               
 ------------------ =  ----------
       x(x +4)                7x

    7x(2x + 4) = 10x(x+4)
  
  14x^2 + 28x = 10x^2 + 40x

  4x^2  - 12x = 0
  4x(x - 3) = 0
  4x = 0
    x = 0
 x - 3 = 0
      x = 3

answer x = 0 and x = 3




8 0
3 years ago
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Given the function ƒ(x) = 9x2 + 27x + 2, find ƒ(2).
Burka [1]
Solution is to substitute 2 for x and u should get 92.
3 0
3 years ago
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Which equation can be used to solve the problem 180 is 40% of what number
Kruka [31]

Answer:

40/100 * x = 40

Solve for x. Hope this helps

6 0
3 years ago
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Murrr4er [49]

Answer: $600

Step-by-step explanation:

Given

Anual makes \$12.50 an hour

For 48 hours, he makes

\Rightarrow 48\times 12.5\\\Rightarrow \$600

Thus, he will make $600 for 48 hours

6 0
2 years ago
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