3 years ago

How do I find roots from a quadratic equation

1 answer:

6 0

Answer:The roots of any quadratic equation is given by: x = [-b +/- sqrt(-b^2 - 4ac)]/2a. Write down the quadratic in the form of ax^2 + bx + c = 0. If the equation is in the form y = ax^2 + bx +c, simply replace the y with 0. This is done because the roots of the equation are the values where the y axis is equal to 0.

Step-by-step explanation:

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What expression is equivalent to 1/3(4-5x-1)?

Serhud [2]

1/3( 4 - 5x - 1)

= (1/3)(4 + - 5x + - 1)

= (1/3)( 4) + (1/3)(- 5x) + (1/3)( - 1)

= 4/3 + - 5x/3 + - 1/3

= - 5x/3 + 1 (Decimal: - 1.666667x + 1)

Hope that helps!!!!

3 0

3 years ago

Read 2 more answers

What is cos 30º? O A. 13 B. 1 Oc. O D. 3 2 E. O F. 1 /

babunello [35]

Answer: I do not understand the options you gave but but cos30º is equal to $\sqrt{3}$ /2 which is 0.86602540378.