Answer: 4/a
Explanation:
(a+1/a)^2 - (a-1/a)^2
= (a^2 + 2a + 1)/a^2 - (a^2 - 2a + 1)/a^2
= (a^2 + 2a + 1 - a^2 + 2a - 1)/a^2
= 4a/a^2
= 4/a
For this case we will solve the equations step by step:
a2 - 9a + 14 = 0
(a-7) * (a-2) = 0
a1 = 7
a2 = 2
{7, 2}
a2 + 9a + 14 = 0
(a + 7) * (a + 2) = 0
a1 = -7
a2 = -2
{-2, -7}
a2 + 5a - 14 = 0
(a + 7) * (a-2) = 0
a1 = -7
a2 = 2
{2, -7}
a2 - 5a - 14 = 0
(a-7) * (a + 2) = 0
a1 = 7
a2 = -2
{-2, 7}
Hello!
First you have to convert the decimal into a percent
50% = 0.50
Multiply this by the amount of students.
120 * 0.50 = 60
The answer is 60
Hope this helps!
$2271.75 unless you meant $6.99 then that would be $22.75. Just multiply 3.25 by 699 or 6.99
Answer:
Wait my question is where is tank B?
Step-by-step explanation:
