Answer:
(a) 1
(b) 1
(c) 3.03
Step-by-step explanation:
The given quadratic equation is
Subtract 27 from both sides.
Taking out common factor.
Divide both sides by 4.
If an expression is , then we need to add , to make it perfect square.
Here, b=2, so
Add 1 on both sides.
Taking square root on both sides.
Subtract 1 from both sides.
and
and
Only one solution is positive.
Greatest solution is 3.031, therefore the approximate value of this solution is 3.03.
Answer:
Step-by-step explanation:
2cm per 35 min
1 cm per 17.5 min
<u>17.5 minutes per cm</u>
Answer:
24 + 5b -b²
Step-by-step explanation:
i am not sure what is meant by propert/ identity but
8 x 3 = 24
8 x b = 8b
(-b) x 3 = (-3b)
(-b) x b = (-b)²
24 + 8b + (-3b) + (-b)²
24 + 5b - b²
Answer:
Step-by-step explanation:
Isn't this cheating?
