A = L * W
A = 320
L = W + 4
320 = W(W + 4)
320 = W^2 + 4W
W^2 + 4W = 320
W^2 + 4W + 4 = 320 + 4
(W + 2)^2 = 324
W + 2 = (+-) sqrt 324
W = -2 (+-) 18
W = -2 + 18 = 16 ft <== this is the width
W = -2 - 18 = -20....not this one because it is negative
L = W + 4
L = 16 + 4
L = 20 ft <=== this is the length
in summary...the width is 16 ft and the length is 20 ft
Answer: I got 2/9 but im not sure if its right
Step-by-step explanation:
Probably A I am not really sure I am trying sorry if it is wrong
<h3>Answer: Choice C</h3>
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Explanation:
The x coordinate of the preimage point Q is x = 6.
The x coordinate of the image point Q' is x = 21.
The ratio of image over preimage is 21/6 = (3*7)/(3*2) = 7/2
You'll get this same value if you do the same steps with the y coordinates.
Therefore, the scale factor is 7/2 and the dilation rule is ![(x,y) \to \left(\frac{7}{2}x, \frac{7}{2}y\right)](https://tex.z-dn.net/?f=%28x%2Cy%29%20%5Cto%20%5Cleft%28%5Cfrac%7B7%7D%7B2%7Dx%2C%20%5Cfrac%7B7%7D%7B2%7Dy%5Cright%29)
Note: 7/2 = 3.5
I’m pretty sure this is how you do these kinds of questions, but I may be entirely wrong, so don’t 100% trust me on this one