Answer: The correct option is (c)
Step-by-step explanation: We are given to solve the following quadratic equation by the method of completing the square:
Also, we are to find the constant added on both sides to form the perfect square trinomial.
We have from equation (i) that
So,
Thus, the required solution is and the value of the constant added is
Option (c) is correct.
Answer:
let,there are x sixth graders
then,
24% of x=30
or,24/100×x=30
or,6x/25=30
or,x=(30×25)/6
therefore,
x=125
HOPE IT HELPS
The ratio 7:9 can be converted to the fraction
, which is in simplest form
3/8 ÷ 3/4
4/8 = 1/2
the sloth moves 1/2 a foot per minute
The answer is 30720
A = P * rⁿ
A - the final population
r - the growth rate
P - the initial number of bacteria
n - the number of hours
We know:
A = ?
r = 2 (it doubles)
P = 15
n = 12
After 11 hours
A(11) = 15 * 2¹²
A(11) = 15 * 2048
A(11) = 30720
After 12 hours
A(12) = 15 * 2¹²
A(12) = 15 * 4096
A(12) = 61440
<span>How many bacteria are grown during the 12th hour?
A(12) - A(11) = 61440 - 30720 = 30720</span>