Answer:
length = 18 ft
Step-by-step explanation:
Let w = width
L = w+7
Area = l*w
198 = (w+7) (w)
Distribute
198 = w^2 +7w
Subtract 198 from each side
0 = w^2 +7w -198
Factor
What 2 numbers multiply to -198 and add to 7
18* -11 = -198
18+-11 = 7
0=(w+18) (w-11)
Using the zero product property
w+18 =0 w-11=0
w= -18 w=11
We cannot have negative width so w=11
We want the length
l = w+7
l = 11+7 = 18
Answer:
I would say that the Answer is 35 I hope this isnt wrong..
The answer of this question is gonna be A
(6,2)
Mark brainliest please
Hope this helps you
Step 1:
a) Write the quadratic model
a = -15.64
b = -1.24
c = 5.23
![P(t)=-15.64t^2\text{ - 1.24t + 5.2}3](https://tex.z-dn.net/?f=P%28t%29%3D-15.64t%5E2%5Ctext%7B%20-%201.24t%20%2B%205.2%7D3)
b) t = 0.30
![\begin{gathered} P(t)=-15.64t^2\text{ - 1.24t + 5.2}3 \\ =\text{ -15.64 }\times0.3^2\text{ - 1.24}\times\text{ 0.3 + 5.2}3 \\ =\text{ -1.4076 - 0.372 + }5.23 \\ =\text{ 3.45} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20P%28t%29%3D-15.64t%5E2%5Ctext%7B%20-%201.24t%20%2B%205.2%7D3%20%5C%5C%20%3D%5Ctext%7B%20-15.64%20%7D%5Ctimes0.3%5E2%5Ctext%7B%20-%201.24%7D%5Ctimes%5Ctext%7B%200.3%20%2B%205.2%7D3%20%5C%5C%20%3D%5Ctext%7B%20-1.4076%20-%200.372%20%2B%20%7D5.23%20%5C%5C%20%3D%5Ctext%7B%203.45%7D%20%5Cend%7Bgathered%7D)
c) t = 0.52 seconds
![\begin{gathered} p(t)=-15.64t^2\text{ - 1.23t + 5.23} \\ =\text{ -15.64}\times0.52^2\text{ - 1.23}\times0.52\text{ + 5.23} \\ =\text{ -4.23 - 0.64 + 5.23} \\ =\text{ 0.36} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20p%28t%29%3D-15.64t%5E2%5Ctext%7B%20-%201.23t%20%2B%205.23%7D%20%5C%5C%20%3D%5Ctext%7B%20-15.64%7D%5Ctimes0.52%5E2%5Ctext%7B%20-%201.23%7D%5Ctimes0.52%5Ctext%7B%20%2B%205.23%7D%20%5C%5C%20%3D%5Ctext%7B%20-4.23%20-%200.64%20%2B%205.23%7D%20%5C%5C%20%3D%5Ctext%7B%200.36%7D%20%5Cend%7Bgathered%7D)
d) 0.30 is more likely to be relaible.
e)