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Nezavi [6.7K]
3 years ago
14

2x2-9x+1=0 value of discrimination and number of real solutions

Mathematics
1 answer:
Afina-wow [57]3 years ago
5 0

2 \times 2 - 9x + 1 = 0 \\  \\ 1. \:  - 9x + 5 = 0 \\ 2. \:  - 9x =  - 5 \\ 3. \:  \frac{ - 9x}{ - 9}  =  \frac{ - 5}{ - 9}  \\ x =  \frac{5}{9}  \\ or \\  \\ 1. \: 4 - 9x + 1 = 0 \\ 2. \:  - 9x + 5 = 0 \\ 3. \:  - 9x =  - 5 \\ 4. \: x =  \frac{ - 5}{ - 9}  \\ 5. \: x =  \frac{5}{9}

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If r = 9, b = 5, and g= −6, what does (r + b − g)(b + g) equal?
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Answer:

-20

Step-by-step explanation:

(r + b − g)(b + g)

we have fom statement:

r = 9    

b = 5

g= −6

so we have:

(r + b − g)(b + g)= (9+5-(-6))*(5+(-6))

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3 years ago
&lt;1 and &lt;2 are supplementary. m&lt;1=4x and m&lt;2 =92 what is the value of x
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Answer:

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Step-by-step explanation:

Supplementary means that the two angles that are supplementary equal 180 degrees. 180-m<2=m<1

180-92=88 (m<2=92)

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Wewaii [24]

Answer:

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Step-by-step explanation:

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When the slope is zero, the object is stationary (not moving). The position remains as it was.

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2. The position vs. time curve is a straight line with negative slope. The object is moving to the left with constant velocity.

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3. The position vs. time curve is flat for a while, then increasing with constant slope. The object stayed where it was for a while, then began moving to the right (to larger values of x) with constant velocity.

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5(4x – 3) + 13x – 6

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3 years ago
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