Answer:
4.6.
Step-by-step explanation:
The rocket hits the ground when h(t) = 0. So
Solving a quadratic equation:
Given a second order polynomial expressed by the following equation:
.
This polynomial has roots 
such that 
, given by the following formulas:
In this question:
So
Then
Time is a positive measure, so the answer is 4.6.
Shading above (>) the solid (or =) line tells you it is
y ≥ (something)
The only possible choice is
y ≥ (3/2)x - 3
The two algebraic fractions can be added or subtracted only if they have the common denominators. So when adding or subtracting algebraic fractions the first thing that must be done is to take the LCM of the denominators and convert the denominators to same expressions. Only after this step the fractions can be added or subtracted. If this step is not performed, the operations cannot be performed correctly. This concept is similar to the addition and subtraction of simple fractions.
The answer is B. Parabola is a symmetrical open plane bend framed by the crossing point of a cone with a plane parallel to its side. The way of a shot affected by gravity in a perfect world takes after a bend of this shape.
Answer: 2 can go into 120 60 times.
Step-by-step explanation:
120/2 = 60
