The union - set of all elements in O and T ( or both ):
O U T = { 49,50,52,54,55,56,59,60,61,62,65,68,70,71,72,74,75 }
Number of elements in the set O U T is 17. Answer: C )
Answer:

Step-by-step explanation:
The equation of a quadratic function is given as:
ax² + bx + c = 0
where a, b and c are the coefficient in the quadratic equation.
The axis of symmetry of the quadratic equation is given as:

To get the equation for a, we have to make a the subject of formula:

Answer:
11.25pi units² or 35.3 units² (3 sf)
Step-by-step explanation:
½×r²×theta
½ × 5² × 0.9pi
11.25pi units²
Or, 35.3 units² (3 sf)
Answer:
18
Step-by-step explanation:
900/50= 18
so sorry this was answered late
Step-by-step explanation: Since f(x) = 5x + 11, we find f(-5)
by substituting a -5 in for the x in the function to get f(-5) = 5(-5) + 11.
Now just simplify the right side to get -25 + 11 or -14.
So f(-5) = -14.