There 100 pages
she read 60/100 pages
she have 40/100pages left
Answer:
C and D
Step-by-step explanation:
The quadratic formula is
x= (-b±√b²-4ac)/2a
The formula uses the numerical coefficients in the quadratic equation.
The general quadratic equation is ax²+bx+c where a, b and c are the numerical coefficients
So, lets try and see;
A.

But due to the fact that in this equation you have x⁴, the equation is not a quadratic equation thus can not be solved using this formula
B

C

D.

From the checking above, the equations will be C and D
Hope this helps but I think there is a 1/4 or a 25% chance of somebody winning a prize.
So look at it as a normal rectangle with just four sides. AB is 7.5, which is one side. And now to get the other side just add BC and DE together to complete the side. It would be 2.5 + 1.25= 3.75. And to get the perimeter just add 3.75+3.75+7.5+7.5. I hope this makes sense.
Answer: y = 3/2x - 2
Step-by-step explanation: