Answer:
1. 1800 square cm.
2. See below
3. 45000 square cm.
Explanation:
Part 1
The dimensions of the drawing are 36cm by 50cm.
Part 2
Given a scale factor, k
If the area of the scale drawing is A; then we can find the area of the actual board by multiplying the area of the scale drawing by the square of k.
Part 3
Therefore, the area of the actual drawing will be:
the answer of the question will be F(7,9)
Option 4
Step-by-step explanation:
-½ means it's -0.5, and then -0.4 then -3/10 = -0.3 and then -0.23, therefore it goes -½, -0.4, -3/10, then -0.23
Answer: the answer is 0
9, or -9
9t=81 or -81
t=9 or -9