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3 years ago

15

Determine the stopping distances for an automobile going a constant initial speed of 95 km/h and human reaction time of 0.40 s:

(a) for an acceleration a= -3.0 m/s^2; (b) for a = -6.0 m/s2.

1 answer:

Sindrei [870]3 years ago

7 0

Answer:

aaa

Step-by-step explanation:

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When negative five is subtracted from a number the result is 10. Find the number. 15 -5 -15 5

masya89 [10]

Answer:

-5

Step-by-step explanation:

Subtracting by -5 and keep going down you will eventually get to 10.

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3 years ago

Find the sum. 1/6 + 3/4.

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How many 1/3inch cubes does it take to fill a box with a width of 2 2/3inches, Length 3 1/3, and height 2 1/3inches?

AlladinOne [14]

Answer:hope this helps

Thus, it takes 560 1/3 inch cubes to fill a box with width 2 2/3 inches, length 3 1/3 inches, and height 2 1/3 inches.

Step-by-step explanation:

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3 years ago

Find all complex solutions of 7x^2-7x+3=0

Sedaia [141]

Answer:

The complex solutions are

$x = (\frac{7-\sqrt{35} i }{42} , ) x = \frac{7 + \sqrt{35} i }{42})$

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given equation 7 x² - 7 x +3=0

$x = (\frac{-b -\sqrt{b^{2}-4ac } }{2ac} , \frac{-b +\sqrt{b^{2}-4ac } }{2ac})$

Given standard equation

a x² +b x +c =0

a = 7 , b= -7 and c=3

<u><em>Step(ii):-</em></u>

<u><em></em></u> $x = (\frac{-(-7) -\sqrt{(-7)^{2}-4(7)(3) } }{2(7)(3)} , \frac{-(-7) +\sqrt{(-7)^{2}-4(7)(3) } }{2(7)(3)})$ <u><em></em></u>

<u><em></em></u> $x = (\frac{7-\sqrt{(49-84 } }{42} , \frac{7 +\sqrt{(49-84 } }{42})$ <u><em></em></u>

$x = (\frac{7-\sqrt{35i^{2} } }{42} , \frac{7 + \sqrt{35i^{2} } }{42})$

$x = (\frac{7-\sqrt{35} i }{42} , \frac{7 + \sqrt{35} i }{42})$

<u><em></em></u>

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3 years ago

The square root of 36y^3 =

Aleks04 [339]

The square roots of 36y^3 are plus and minus 6y^(3/2) .

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