Answer:
22 cubes
Step-by-step explanation:
Answer:
C x = (-5+sqrt(-3))/2
D x = ( -5-sqrt(-3))/2
Step-by-step explanation:
Set the polynomial equal to zero
x^2 + 5x+7 =0
Subtract 7 from each side
x^2 + 5x+7-7 =-7
x^2 + 5x = -7
Complete the square by taking the coefficient of x and dividing by 2 and then squaring it
(5/2)^2 = 25/4
x^2 + 5x + 25/4 = -7+25/4
(x+5/2)^2 = -28/4 +25/4
(x+5/2)^2 = -3/4
Take the square root of each side
x+5/2 = ±sqrt(-3/4)
Subtract 5/2 from each side
x+5/2 -5/2 = -5/2±sqrt(-3/4)
x = -5/2±sqrt(-3/4)
x = -5/2±sqrt(-3)/2
x = (-5±sqrt(-3))/2
$107.15 I believe I am not 100% but it should be that I took the price and divided it by 6 to see the price of one ticket then multiples it by 9
Answer:
I believe the answer is 2.2578125
Step-by-step explanation:
how I got the answer was i divided 34 by 512 which equals 0.06640625 then I multiplied 0.06640625 by 34 which gave me 2.2578125
Robin’s number ------------ Y
Sydney’s number ------------ x
Y = X + 8.............. (1)
X + Y = 72 ............(2)
Substituting (1) in (2)
X + (X + 8) = 72 .............> ......2X = 64 => X = 32
Now in (1)
Y = (32) + 8 = 40
Robin is 40
Sydney is 32