Answer:
E: 22%
Step-by-step explanation:
Area of the whole page:
30 × 40 = 1200cm²
Area of inner page (excluding margins):
(30-4) × (40-4) = 26 × 36
= 936cm²
Area of margins:
1200 - 936 = 264
To find percentage: 
× 100 = 22%
Answer:
-8
Step-by-step explanation:
you know, all you have to do in such a case is simply taking the given -2 and put it, where there is "x" in the function expression and then calculate this. if necessary with a calculator.
2×2×x with x=-2 is
2×2×-2 = -8
Answer:
-2 ≤ x ≤ 5
Step-by-step explanation:
x is greater than or equal to -2 and less than or equal to 5
⇒ x ≥ -2 and x ≤ 5
⇒ -2 ≤ x ≤ 5
Step-by-step explanation:
questions 8, obviously the mid part of the parabola is 3, that is the axis of symmetry.
question 9, only one solution because you only have one parabola.
