Help me! 6 ÷ 1/4, 1 ÷ 9/10, 8÷ 9/12,. 8÷7/10. 2÷2/5,. 1÷1/6,. 9÷3/4 6÷4/5

1 answer:

5 0

6/0.25 = 24

1/0.9 = 1.11111111111...........

8/0.75 = 10.6666666666666.........

8/0.7 = 11.428571..........

2/0.4 = 5

1/ 1/6 = 6

9/ 0.75 = 12

6/0.8 = 7.5

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What is the solution for 5x^2-x+6=0

kati45 [8]

The easiest way to solve this problem is by using the Pythagorean theorem :D

Pythagorean theorem: [-b +- sqrt(b^2 - 4ac)]/2a

5 = a

-1 = b

6 = c

therefore, by plugging these values in!

[-(-1) +- sqrt((-1)^2 - 4(5)(6))]/2(5)

[1 +- sqrt(1 - 120)]/10

Oh so we're using imaginary numbers, so in this case you'll need to know that i = sqrt(-1), so keep this in mind (I can see why this was so difficult)

[1 +- sqrt(119)*i]10

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( 1 + i*sqrt(119) ) / 10

( 1 - i*sqrt(119) ) / 10

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Find the standard form of the equation of the parabola with a focus at (-2, 0) and a directrix at x = 2.

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Standard form is, hold a sec

x=2 is directix
that means it opens left or right
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vertex is (0,0)

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Find the angles of a parallelogram in which an exterior angle is one-third that its interior angle.

iogann1982 [59]

Answer:

The angles of a parallelogram are 135°-45°-135°-45°

Step-by-step explanation:

we know that

In a parallelogram opposites angles are congruent and consecutive angles are supplementary

Remember that

The sum of a exterior angle and its interior angle is equal to 180 degrees

Let