Answer:
-12
Step-by-step explanation:
The average rate of change is found by
f(4) - f(2)
---------------
4-2
32 - 56
----------
4-2
-24
------
2
-12
The correct value of the length of a side = 2¼ ft
Answer:
area of the whole mosaic = 182.25 ft²
Step-by-step explanation:
We are told it has a 6 x 6 array of different colour square tiles.
Which means it has 6 x 6 = 36 square tiles.
Area of square = L²
Where L is length of side
Now, since length of one tile is 2¼ ft long.
Thus, area of one square tile = (2¼)²
= 81/16 ft²
Since there are 36 tiles,
Thus ;
Total area ; 81/16 x 36 = 182.25 ft²
The area of the trapezoid is 45 cm²
Answer:
f(-5) = 5
Step-by-step explanation:
Step 1: Define
f(x) = -x² - 7x - 5
f(-5) is x = -5
Step 2: Substitute and Evaluate
f(-5) = -(-5)² - 7(-5) - 5
f(-5) = -25 + 35 - 5
f(-5) = -25 + 30
f(-5) = 5
