.65 x 8.99= 5.84 (now subtract this from the regular price)
8.99-5.84=3.15 sale price
-9 -4x = 7
add 9 to both sides in order to isolate the x
-4x = 16
divide by -4
x = -4
Answer:
See below
Step-by-step explanation:
Since you didn't give an actual quadratic equation and just the standard form equation, I will reduce ax^2+bx+c=0:
(ax+p)(x+q) where p+q=b and pq=c
13/52 is the ratio of hearts to all cards
That reduces to a 1/4 ratio
or a 25% chance of drawing a heart
Answer: Mean-70. Standard Deviation-5.228
Step-by-step explanation:
