F(x) = x^2 + 4x - 5
[f(a + h) - f(a)] / h
f(a) = a^2 + 4a - 5
f(a + h) = (a + h)^2 +4(a + h) - 5
= a^2 + 2ah + h^2 + 4a + 4h - 5
f(a + h) - f(a) = a^2 + 2ah + h^2 + 4a + 4h - 5 - ( a^2 + 4a - 5)
---------------- ------------------------------------------------------------
h h
= 2ah + h^2 + 4h h (2a + h + 4) 2a + h + 4
------------------- = ------------------- =
h h
In this problem, you are asked to solve the area of a
trapezoid. The formula in finding the area of a trapezoid is:
A = [(a + b)/2] x h
Where a = base 1
b = base
2
h =
height
Substituting the given measurements to the formula:
A = [(6.9 km + 2.7 km)/2] x 2.2 km
A = (9.6 km/2) x 2.2 km
A = 4.8 km x 2.2 km
A = 10.56 km^2
Therefore, the area is 10.56 square kilometers.
Answer:2
Step-by-step explanation:3-1=2
I got this, I hope it solves your question
Answer:
the 10 books take up 28 centimetres what is the average thickness of her books
