The area of the parallelogram is 234 units squared.
<h3>0.00005 % sperms deposited in the vagina survive the journey to the egg.</h3>
<em><u>Solution:</u></em>
Given that,
Suppose that only 200 sperm out of the original 400 million sperm deposited in the vagina survive the journey to the egg
400 million = 400000000
<em><u>The percentage is given as:</u></em>
Therefore,
Thus, 0.00005 % sperms deposited in the vagina survive the journey to the egg.
Solve the equation using the quadratic formula ⇨ x² + 11x + 9 = 0
All equations of the form can be solved using the quadratic formula: . The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction.
This equation is in standard form: ax² + bx + c = 0. Substitute 1 for a, 11 for b and 9 for c in the quadratic formula .
Square 11.
Multiply -4 times 9.
Add 121 to -36.
Now solve the equation when ± is plus. Add -11 to √85.
Now solve the equation when ± is minus. Subtract √85 from -11.
The equation is now solved. The solution set is :-