Answer:
r = - 7, r = - 5
Step-by-step explanation:
Given
r² = - 12r - 35 ( add 12r to both sides )
r² + 12r = - 35
To complete the square
add ( half the coefficient of the r- term )² to both sides
r² + 2(6)r + 36 = - 35 + 36
(r + 6)² = 1 ← take the square root of both sides )
r + 6 = ± 1 ( subtract 6 from both sides )
r = - 6 ± 1, thus
r = - 6 - 1 = - 7 or r = - 6 + 1 = - 5
Your Answer Is 40 It’s Simple Really If You Kinda Think About It But Has A Fraction It Would Be 40/1
Answer:
x^5y+4x+4y+2
Step-by-step explanation:
Fact, ^ is called an exponet
(Just so you know)
Answer:
$260
Step-by-step explanation:
Actual price + 8% of actual price=$280.80
Let x= actual price
8% of actual price=8/100 of x
=0.08x
x + 0.08x=$280.80
1.08x=$280.80
x=$280.80/1.08
x=$260
Price of the jacket before sales tax=$260
Check:
8% sales tax of $260
=8% of $260
=8/100×$260
=0.08×$260
=$20.8
Purchasing price= actual price+ sales tax
=$260+$20.8
=$280.80
