Step-by-step explanation:
The general form of the quadratic equation is :
The given equation is x²+4x+20=0
On comparing the given equation and the general equation, we find that
a = 1, b = 4 and c = 20
Hence, the correct option is a=1 b =4 c = 20.
If the equation is 2x²+6x+5=0, then
a = 2, b = 6 and c = 5
If the equation is -2x²+x+5
a = -2, b = 1 and c = 5
First calculate the radius = 1/2 the diameter = [sqrt sqr160(4-0)^2 + (-14-(-2))^2] / 2
= (sqrt 160 ) / 2 so r^2 = 160 /4 = 40
center = midpoint of the diameter = (-14-2)/ 2 , (4+0)/2 = (-8, 2)
so required equation is (x + 8)^2 + (y - 2)^2 = 40
Answer:
a > -2
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Distributive Property
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
<u>Alge bra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
<u />
<u />
<u />
<u>Step 2: Solve for </u><em><u>a</u></em>
- [Multiplication Property of Equality] Multiply 3 on both sides:
- [Distributive Property] Distribute 3:
- [Subtraction Property of Equality] Subtract 3a on both sides:
- [Subtraction Property of Equality] Subtract 6 on both sides:
- [Division Property of Equality] Divide 6 on both sides:
Answer:
(6, 80)
Step-by-step explanation:
First, should mark your y intercepts, which are +20 and +50 on your y axis.
Next, you must know how to use rise over run.
10 = 10/1 and 5 = 5/1
If you have a graph, you can use it for this step:
Next, you rise up 10 then go right 1 because it is positive, and do the same thing over and over again for your first equation. For your next equation, you go up 5 and right 1 since it is also positive.
English please so I can answer it
