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jek_recluse [69]
3 years ago
13

Find the roots of the parabola given by the following equation 2x^2+5X-9=2x

Mathematics
1 answer:
natta225 [31]3 years ago
7 0

Answer:

x=-3\:or\:x=\frac{3}{2}

Step-by-step explanation:

The given parabola has equation

2x^2+5x-9=2x

We rewrite in standard form to obtain:

2x^2+5x-2x-9=0

2x^2+3x-9=0

Split the middle terms to get:

2x^2+6x-3x-9=0

Factor by grouping:

2x(x+3)-3(x+3)=0

(x+3)(2x-3)=0

x=-3\:or\:x=\frac{3}{2}

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algol [13]

x=0    y=6

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x=2    y=10

x=3    y=12

x=4    y=14

8 0
3 years ago
Find P(x)=... polynomial
Aneli [31]

Answer: D) P(x) = -23

Step-by-step explanation:

Substitute 2 for x:

1 - 2(2)^2-3(2)^2+4(2)

Exponent

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Multiply

1-8-24+8

Combine like terms

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<em>Hope it helps <3</em>

3 0
3 years ago
Find the amount of time.<br><br> I=$450, P=$2400, r=7.5%
Aliun [14]
2.5 years
~You need to set this problem up in the I=PRT form. This should be your formula then, 450=2400(.075)(t). Then do 2400 times .075 and then times that by t which equals 180t. To get rid of that t then take 450 divided by 180 and you get 2.5. Remember when working with rates put them in decimal form also but your time in years.

I hope this helps you:)
3 0
3 years ago
You can eat no more than 40 slices of pizza each week. If you have
Svet_ta [14]

Answer: 5.7 slices

Step-by-step explanation:

7x=40. x represents number of slices per day, 7 is because you eat pizza every day and there's 7 days in a week.

Divide both sides by 7:

7x/7 = 40/7

x= 5.7

4 0
3 years ago
What is 23% of 20???????
Elan Coil [88]
It is 4.6 

hope you are satisfied with your answer
6 0
3 years ago
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