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2 years ago

I need help I been hitting a roadblock for the past hour. Can anyone help me?

Mathematics

1 answer:

snow_lady [41]2 years ago

7 0

Answer:

hhuh

Step-by-step explanation:

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What is the domain of the function y=2 x-5? O x>-5 O x>2 O x>5 O x>10

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That’s a good one Because what is the domain of the function Y equals 2X

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2 years ago

Which expression cannot be used to calculate the sale price of a fish tank that was originally at priced d dollars and is on sal

Drupady [299]

Where S is sales price,
S = .75d

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2 years ago

For a fixed amount of gas at a constant temperature, the volume of the gas is inversely proportional to its pressure. The functi

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The relation between pressure and volume is given as
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2 years ago

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What are the roots to the equation 2x² + 6x-1=0?

lys-0071 [83]

Answer:

The roots of equations are as m = $\frac{-3}{2} + \frac{\sqrt{11} }{2}$ And n = $\frac{-3}{2} - \frac{\sqrt{11} }{2}$

Step-by-step explanation:

The given quadratic equation is 2 x² + 6 x - 1 = 0

This equation is in form of a x² + b x + c = 0

Let the roots of the equation are ( m , n )

Now , sum of roots = $\frac{ - b}{a}$

And products of roots = $\frac{c}{a}$

So, m + n = $\frac{ - 6}{2}$ = - 3

And m × n = $\frac{ - 1}{2}$

Or, (m - n)² = (m + n)² - 4mn

Or, (m - n)² = (-3)² - 4 ( $\frac{ - 1}{2}$ )

Or, (m - n)² = 9 + 2 = 11

I.e m - n = $\sqrt{11}$

Again m + n = - 3 And m - n = $\sqrt{11}$

Solving this two equation

(m + n) + ( m - n) = - 3 + $\sqrt{11}$

I.e 2 m = - 3 + $\sqrt{11}$

Or, m = $\frac{-3}{2} + \frac{\sqrt{11} }{2}$

Similarly n = $\frac{-3}{2} - \frac{\sqrt{11} }{2}$

Hence the roots of equations are as m = $\frac{-3}{2} + \frac{\sqrt{11} }{2}$ And n = $\frac{-3}{2} - \frac{\sqrt{11} }{2}$ Answer

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2 years ago

Help me quickly!!!!!!!!!

Assoli18 [71]

Answer:273

Step-by-step explanation:

52 x 5.25 = 273 miles

15 minutes is 1/4 of an hour so it is .25 so you multiply 52 times 5.25 to find your answer.

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2 years ago

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I need help I been hitting a roadblock for the past hour. Can anyone help me?​

I need help I been hitting a roadblock for the past hour. Can anyone help me?