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stich3 [128]
3 years ago
10

If 2x^2 equals 3x+2 then what is the sum of 2 solutions

Mathematics
1 answer:
Aleks [24]3 years ago
5 0

Answer:

2x^2=3x+2

2x^2-3x-2=0

(x-2)(x+1/2)=0

x=2 or x=-1/2

The sum of 2 solution 2+-1/2=3/2

Step-by-step explanation:

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Three consecutive integers are n, n, +1 and n+2. 4 times the sum of the least and greatest integers is 12 less than three times
raketka [301]

Answer:

The smallest integer is -4.

Step-by-step explanation:

4(n + n+2) = 3*n - 12                          Combine the left

4(2n + 2) = 3n- 12                              Remove the brackets

8n + 8 = 3n - 12                                 Subtract 3n from both sides

8n-3n + 8 = 3n-3n - 12                      Combine

5n + 8 = - 12                                      Subtract 8 from both sides

5n = - 12 - 8

5n = - 20                                           Divide by 5

5n/5 = -20/5    

n = - 4

n + 1 = -3

n + 2 = - 2

8 0
3 years ago
Can somebody teach me inscribed angles! My 40 question summarize on circles in geometry is today and I need help on everything!
deff fn [24]

Inscribed angles are pretty easy, they're always half the corresponding central angle.  The arc measure are always of central angles.

1. We're told to arc is 62 degrees so the inscribed angle is half,

WXY = 31 degrees.

2. Here we're told the inscribed angle is 113 degrees so the arc is double,

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3. Angles which subtend a diameter are always right angles.

PQR = 90 degrees

4. If we draw DC we see it's a radius too, so DC=DB and we have an isosceles triangle so DCB=47 degrees so BDC=180-47-47=86.  The central angle is the arc measure so

BC=86 degrees

5. Angle JNK=53 degrees and angles NJK=NKJ because we have an isosceles triangle, two sides radii.  So NKJ=(180-53)/2.

Similarly NKL=(180-65)/2

So angle JKL=NKJ+NKL=180 - (65+53)/2 = 180 - 118/2 = 121 degrees

I better leave the rest for you.

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Answer:

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Step-by-step explanation:


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3 years ago
Write the equation of the circle with center (2, -3) and a radius of 4. A) (x + 2)2 + (y - 3)2 = 4 Eliminate B) (x - 2)2 + (y +
bekas [8.4K]
The answer is:  [D]:  " (x − 2)² + (y + 3)² = 16 " .
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If the distance from the center of a regular pentagon to one of the vertices is 15 units, what is the length of one of the sides
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Step-by-step explanation:

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