20/7 times 21/4 is 420/28, which is 15 simplified.
The area is 15 sq ft, or choice A
Answer:
Equation of the new function becomes f(x) = 
Step-by-step explanation:
We are given the function f(x) = x.
The first transformation applied on this f(x) is 'vertical compression by 1/4' i.e. f(x) becomes
.
This transformation shrinks the graph of f(x) towards x-axis.
Now, the next transformation applied to
is 'a flip over the y-axis' i.e. 'reflection over y-axis'
i.e.
becomes 
This transformation takes the mirror image of the function over y-axis.
Hence, the equation of the new function becomes f(x) =
and the final graph is shown below.
3. my answer I got was 6.53. I think it rounds to 7
I hate parabolas. i can't remember the equation. sorry.
3s+2c=37
12s+7c=134
To solve we need to multiply the first equation by negative 4
-4(3s+2c=37)
-12s+-8c=-148
12s+7c=134
Cross out the 12s on the two above equations.
-c=-14
c=14
Now let’s plug in value c to first original equation :
3s +2(14)=37
3s+28=37
3s=9
s=3
To recap: senior tickets cost $3 each; children tickets cost $14 each