Answer:
2 groups of CDs
Step-by-step explanation:
Charmaine has 6 CDs total
6 divided by 3 = 2
Nine hundred and seventeen point twenty seven
So, c<span> must be 121 to make the trinomial a perfect </span>square<span>. 3. </span>x<span>. </span>2<span>. + 9x + </span>c<span>. SOLUTION: Page 1. 9-4 Solving Quadratic Equations by </span>Completing<span> the </span>Square<span> + 4x = 6. SOLUTION: The solutions are about –5.2 and 1.2. 6. </span>x<span>. </span>2<span>. − </span>8x<span> = −9.</span>
I hope this is help full to you
If the legs of a right triangle are a and b and the hypotnuse is c then
a²+b²=c²
so we are given
the legs are x and √7
and the hypotnuse is √19
so
x²+(√7)²=(√19)²
x²+7=19
minus 7 both sides
x²=12
sqrt both sides
x=√12
x=√(4*3)
x=(√4)(√3)
x=2√3