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timama [110]
3 years ago
13

Find the roots. 2x^2 + 4x - 5 =0

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
8 0

Answer:

-1\pm\dfrac{\sqrt{14}}{2}

Step-by-step explanation:

2x^2+4x-5=0

Using the quadratic formula:

x=\dfrac{-4\pm \sqrt{16+40}}{4}=-1\pm\dfrac{\sqrt{14}}{2}

Hope this helps!

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saul85 [17]
To find the amount of 7 fluid ounce servings in this container, divide 64 by 7 to get the answer of about 9.14 (rounded to the nearest one hundredth). So 9 full servings and an additional .142857... ounces as well.

Hope this helps!

5 0
3 years ago
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Why do you think rates are usually written as unit rates?
stellarik [79]
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6 0
3 years ago
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A hat salesman earns a commission of 30% of all hat sales made. Yesterday he sold 3 hats for $90 each and 4 hats for $50 each. H
zalisa [80]
(30/100)(90*3+50*4)

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6 0
3 years ago
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2. Ravi purchased an old house for Rs. 76.5000 and
lorasvet [3.4K]

Answer:

Rs. 924000.

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Cost of  house = 765000

Additional money spent on it = 115000

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gain in Rs = 5/100 * 880000 = Rs. 44000

Total selling price of house = total cost incurred + profit = 880000+ 44000

Total selling price of house = Rs. 924000

Thus, Ravi got  Rs. 924000.

3 0
4 years ago
Plz some one help me
sveta [45]
9 games

You can get this by multiplying each percentage by the total number of games to see what they have to expect.

.55*180 = 99 games (red team)

.60*180 = 108 games (blue team)

Now subtract the blue team expectation from the red team.

108 - 99 = 9 games. 
6 0
3 years ago
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