Answer:
48m²
Explanation:
since 3cm represents 4m, the width of the dining hall would be 4m. its length on the drawing is 9cm, which is 3 times of 3cm, so we can also multiply 4m by 3 to find the real length of the dining hall. this would give us 12m.
3cm : 4m
(multiply both by 3)
9cm : 12m
now, we can calculate the area of the dining hall using the equation 12m × 4m = <u>48m²</u>.
i hope this helps! :D
the frequency of success is 244.
part b's answer is 240.
Answer: Step-by-step explanation:
f(x)=ax^2→g(x)=a(x-h)^2+k
The horizontal shift depends on the value of h. The horizontal shift is described as:
g(x)=f(x+h) - The graph is shifted to the left h units.
g(x)=f(x−h) - The graph is shifted to the right h units.
Hence, in the question above, Horizontal Shift: Right h Units
The vertical shift depends on the value of k. The vertical shift is described as:
g(x)=f(x)+k - The graph is shifted up k units.
g(x)=f(x)−k - The graph is shifted down k units.
Therefore, in the question above, Vertical Shift: Up k Units
To find r, we have to isolate it on one side of the equation. We can do this by "undoing" the equation one step at a time.
4r - 8 = 5r + 12
4r - 8 - 4r = 5r + 12 - 4r
-8 = r + 12
-8 - 12 = r + 12 - 12
-20 = r
r = -20
Hope this helps!