3 years ago

The equation, 3x2 + 6x + 3y2 + 7y + 4 = 0, represents a conic.

Mathematics

2 answers:

Leno4ka [110]3 years ago

7 0

Answer: Circle

Step-by-step explanation:

Check the variables' degrees and their coefficients' signs to determine the type of the conic.

Kamila [148]3 years ago

7 0

Answer:

Circle - A=C

Step-by-step explanation:

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-16t^2+20t+65 Quadratic Formula

Shalnov [3]

The value of T is

$\frac{-5+\sqrt{285} }{8}$ OR $\frac{-5-\sqrt{285} }{8}$

Step-by-step explanation:

Assumption: find the values of t

1. Equation is $-16t^{2}$ +20t+65

2. Identify values of a, b and c

a = -16
b = 20
c = 65

3. Write the quadratic formula

t = $\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

4. Substitute the values of a, b and c in the formula

t = $\frac{-b±\sqrt{b^{2}-4ac } }{2a}$

t = $\frac{-20±\sqrt{20^{2}-4(-16)(65) } }{2(-16}$

5. Solve to find the possible values of t

t = $\frac{-20±\sqrt{20^{2}-4(-16)(65) } }{2(-16}$

$\frac{-5+\sqrt{285} }{8}$ OR

$\frac{-5-\sqrt{285} }{8}$

Keywords: Quadratic

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