3 years ago

I really need help this problem

Mathematics

1 answer:

hodyreva [135]3 years ago

4 0

Answer:

it would be b since a number is being taken away from 8

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Well I'm having troubles with something I have no idea what it is or how to do it. The problem is x^2 -18x+8=0. I only know how

Lubov Fominskaja [6]

Answer:

$x = \frac{-(-18) -\sqrt{(-18)^2 -4*1*8}}{2} = \frac{18 -2 \sqrt{73}}{2}= 9 -\sqrt{73}$

$x = \frac{-(-18) +\sqrt{(-18)^2 -4*1*8}}{2} = \frac{18 +2 \sqrt{73}}{2}= 9 +\sqrt{73}$

Step-by-step explanation:

We have the following equation:

$x^2 -18 x +8 =0$

We can use the quadratic formula given by:

$x = \frac{-b \pm \sqrt{b^2 -4ac}}{2a}$

Where:

$a = 1 , b=-18, c =8$

And replacing we got:

$x = \frac{-(-18) -\sqrt{(-18)^2 -4*1*8}}{2} = \frac{18 -2 \sqrt{73}}{2}= 9 -\sqrt{73}$

$x = \frac{-(-18) +\sqrt{(-18)^2 -4*1*8}}{2} = \frac{18 +2 \sqrt{73}}{2}= 9 +\sqrt{73}$

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3 years ago

Graph the equation on the coordinate plate y=4x+4

yan [13]

This is the answer, if you need help with graphing there is a website call desmos

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4 years ago

3) A local meteorologist measured the rain during a storm and recorded it on a graph. At what

ra1l [238]

Answer:

The rain fell at 2cm per hour

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3 years ago

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What is the general form of the equation of the line shown?

mario62 [17]

Point/slope form is:-

y - y1 = m(x - x1) where m = slope and (x1, y1) is a point on the line

In the above diagram the slope is -1 and one point on the line is (0, -2) so we have:-

y - (-2) = -1(x - 0)

y + 2 = -x

x + y + 2 = 0 is the answer

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3 years ago

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Tony's 1st two jumps were 11 2/3ft and 11 1/2ft. His total distance was 44ft. How many feet was his final jump?

zlopas [31]

Answer: 20.83

Step-by-step explanation: 44 - 11 2/3 - 11 1/2 = 20.83

Too Easy.

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3 years ago