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2 years ago

Can someone please help me with this problem, it is really confusing

Mathematics

1 answer:

levacccp [35]2 years ago

4 0

Answer =-0.7x +0

Find the gradient by y2-y1/x2-x1
-14 -7/ 20- -10
-21/30
-0.7
And plug in the coordinates to find the y intercept
7= -0.7 (-10) + c
C=0

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Juli2301 [7.4K]

N would equal 28 since 60-32 is 28

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5. Find the discriminant of 15x2 = 4x – 1 and describe

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Answer:

a) The discriminant of the equation = - 44

b)The nature of the roots will be imaginary.

c) $x = \frac{2 +\sqrt{11} i}{15} or, x = \frac{2 - \sqrt{11} i}{15}$

Step-by-step explanation:

Here, the given expression is $15x^{2} = 4x -1$

or, $15x^{2} - 4x + 1 = 0$

Now the discriminant (D) of a quadratic equation $ax^{2} +b x + c = 0$

D = $b^{2} - 4ac = (-4)^{2} - 4(15) (1) = 16 - (60) = -44$

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As D< 0, so the roots will be imaginary.

Now,by quadratic formula : $x = \frac{-b \pm \sqrt{b^{2} - 4ac} }{2a}$

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2 years ago

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Answer and Explanation:

Number of classes = 8

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= 2300 – 1250/8

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So, we can write class as 1250+132=1382

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Answer:

840 has 6 odd factors

Step-by-step explanation:

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3 years ago

PLEASE HURRY!!! 30 POINTS

prisoha [69]

102/17 = 6

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Hope this helps! :)

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