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andrew-mc [135]
3 years ago
6

Brian completed a 100 meter race in 11.74 seconds.Luis completed the race in 11.69 seconds.What was the difference between their

times expressed as a fraction of a second?
Mathematics
1 answer:
DIA [1.3K]3 years ago
3 0

Answer:

1 / 20

Step-by-step explanation:

Brian = 11.74 seconds

Luis = 11.69 seconds

Difference between their times :

11.74 - 11.69 = 0.05

Expressed as a fraction of a second :

0.05 / 1 = (0.05 * 100) / (1 * 100) = 5 /100 = 1/20

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(4x5 + 7x4 + 36x + 63) = (4x + 7)
Nana76 [90]

Answer:

x = -1.75 , +/- 1.1892i.

Step-by-step explanation:

4x5 + 7x4 + 36x + 63) = (4x + 7)

4x^5 + 7x^4 + 32x + 56 = 0

x^4(4x + 7) + 8(4x + 7) = 0

(x^4 + 8) = 0 or 4x + 7 = 0

4x + 7 = 0  

x = -1.75.

4x^4 = -8

x^4 = -2

x = +/- ⁴√-2

x = +/- 1.1892 i.

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3 years ago
If the vertex of a parabola is (0, 3), what is the axis of symmetry
GREYUIT [131]

Answer:

The equation of the axis of symmetry for this parabola is x = 0.

Step-by-step explanation:

For parabola's, it's axis of symmetry always goes through the vertex of the parabola. In other words, the axis of symmetry is vertical line that goes through the x-coordinate of the vertex.

Now, the vertex is given as (0,3) which is at x = 0, y = 3.

Thus, the vertical line that goes through the x-coordinate of the vertex will be x = 0

Thus, the equation of the axis of symmetry for this parabola is x = 0.

7 0
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