Answer:
Step-by-step explanation:
The discriminant comes from the quadratic formula. We use the discriminant to determine, before factoring, what types of solutions we can expect when we do factor. In the quadratic formula, the discriminant is under a square root sign. If the number under a square root sign is negative (meaning the discriminant is negative), we will not have real number solutions because you can't have a negative number under a square root. So a is your choice.
Area of a circle= the circumference squared over 4 pi
// I'm going to assume that pi is being rounded to 3.14
A= 10 squared over 4(3.14)
A= 7.96 inches squared
L = 10
L- <span>the total vertical distance
L = l+(l/2+l/4+l/8+l/16)*2 = 2*l+7/8*l=20+8.75=28.75m</span>
Answer:7857.14cm square
Step-by-step explanation:
surface area of a sphere =4*22/7*25*25=7857.14cm square
Answer:
a,B,R
Step-by-step explanation:
