Answer:
Step-by-step explanation:
Let the price before the increase = £ x
(100+20)% of x = £156
120% of x = 156
x = £ 130
Answer:
t = -2.566s and -1.169s
Step-by-step explanation:
Given the height of the ball expressed at
h(t) = 5t²+14t+3
The ball will hit the ground at h(t) = 0
Substitute and get t
0 = 5t²+14t+3
Use general formula
t = -14+/- √14²-4(5)(3)/2(5)
t = -14+/- √196-60)/10
t = -14+/- √136/10
t =-14+/- 11.66/10
t = -25.66/10 and -2.338/2
t = -2.566s and -1.169s
Hence the ball will hit the ground at these times
No.
62 + 9
when broken apart will look like
60 + 2 + 9
for 62 = 60 + 2
hope this helps
Well, ....... X=57/2 or 28.5 but not are equivalent
I am not so sure because i have not studied this yet i am very sorry