Answer:
two unequal real roots
Step-by-step explanation:
35 - 5(4)(-3) simplifies to 35 + 60, or 95.
Because the discriminant is positive, the quadratic has two unequal real roots.
The number of students that are expected to carry a backpack is = 378
<h3>Calculation of total number of students</h3>
The total number of students in the assembly= 648
The number of students that enters the gym =12
The number of students carrying backpack = 7 out of 12
The total number of batches that entered the gym = 648/12 = 54
Therefore, the number of students that are expected to carry a backpack is = 54 ×7 = 378
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(4x^2 -25) /( 2x+5)
Factorise the numerator
((2x)^2 - (5)^2 ) / ( 2x+5)
Applying the Difference of squares
= ((2x +5)(2x -5))/ (2x+5)
(2x+5) cancels in both numerator and denominator
That implies ,
= (2x-5) , with restriction 2x+5 not equals to 0
or x not equals to -5/2
So the first one is the correct answer
(2x+5) , restriction , x not equals to -5/2
The answer is A because an octagon has 8 sides and if each side is 4 feet you would multiply 4 times 8 and get 32.
