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astraxan [27]
3 years ago
13

Find the roots of the following polynomial equations: 1. y = 2x2 + 3x - 5​

Mathematics
1 answer:
nydimaria [60]3 years ago
3 0

Answer:

Step-by-step explanation:

y=2x^2+3x+5\\

Using the quadratic formula:

\frac{-3+-\sqrt{9-4(2)(5)}}{2(2)} = \frac{-3+-\sqrt{-31}}{4}

Since the discriminant is negative, -31, there are no real roots

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san4es73 [151]

Answer:

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Step-by-step explanation:

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2 years ago
10 / 38
allsm [11]
Use photo math , I’m sure it will help
5 0
3 years ago
What is the volume of a cylinder with a
weeeeeb [17]

Answer:

Yes it is is 392.9 m^3

Step-by-step explanation:

Volume of cylinder is π*r^2*h, π times radius squared times height.

Since the diameter is 5.2, the radius is 2.6 (half of it). 2.6^2 = 6.76, and the height is 18.5, 6.76*18.5 = 125.06. Multiply it by pi to get 392.887577258, round it to 392.9, The volume is 392.9 cubic meters.

6 0
2 years ago
Help please quickly i need help
vekshin1

Answer:

-7/3 is c

-2.9 is a

-2 5/8 is b

Step-by-step explanation:

-5/2 = -2.5

-7/3 > -2.5, so -7/3 is c

-6/2 = -3

-2.9 is very close to -3, so -2.9 is a

-2 5/8 is just a little less that -2.5, so -2 5/8 is b

4 0
2 years ago
Solve the system of equations -4+11y=15 x=2y
kondaur [170]
To solve this I will be using substitution

-4 + 11y = 15
solve for y so

-4 + 11y = 15
11y = 19

y = 19/11

x = 2(19/11)

19/11 x 2 = 38/11

x = 38/11

x = 38/11
y = 19/11

I hope this helps!
3 0
3 years ago
Read 2 more answers
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