A=-2;b=9;c=9;
delta=b^2-4*a*c
root1=(-b+(delta^(0.5)))/(2*a)
<span>root2=(-b-(delta^(0.5)))/(2*a)
delta =153
root1 = -0.8423
root2 =<span> 5.3423
Correct Answer is D</span></span>
Answer:
20.7%
Step-by-step explanation:
3/14.5 = 0.2068
Take 0.2068 and multiply it by 100 to get its percent value which is about 20.7%
$3.00 is 20.7% of $14.50
Answer:
first one
Step-by-step explanation:
4 : 28 is the same as 4/28
4/28 = 1/7
The answer is C
Answer:
£7.43
Step-by-step explanation:
The total cost is ...
13s +22t = 363.01
13(15.35) +22t = 363.01 . . . . fill in the cost of a shirt
22t = 163.46 . . . . . . . . . . . . . subtract 199.55
t = 7.43 . . . . . . . . . . . divide by 22
The cost of a tie is £7.43.