Answer:
37.5
Step-by-step explanation:
3/8
3 divided by 8= .0375
.0375 times 100= 37.5
1. BC is 1+3=4 (units)
2. AD is 3+5= 8 (units)
3. Draw the altitude CH from point C, as shown in the figure.
4. Then triangle CHD is a right triangle, with hypothenuse CD, and sides HD and CH.
5.
![CD^2=HD^2+CH^2](https://tex.z-dn.net/?f=CD%5E2%3DHD%5E2%2BCH%5E2)
![CD^2=2^2+4^2=4+16=20](https://tex.z-dn.net/?f=CD%5E2%3D2%5E2%2B4%5E2%3D4%2B16%3D20)
![CD= \sqrt{20}= \sqrt{4*5}= \sqrt{4} * \sqrt{5}=2 \sqrt{5}= 4.47](https://tex.z-dn.net/?f=CD%3D%20%5Csqrt%7B20%7D%3D%20%5Csqrt%7B4%2A5%7D%3D%20%5Csqrt%7B4%7D%20%2A%20%20%5Csqrt%7B5%7D%3D2%20%5Csqrt%7B5%7D%3D%204.47%20)
6. AB=CD=4.47 because the trapezoid is isosceles.
7. P= BC+AD+AB+CD=4+8+4.47+4.47=20.9 (units)
I could explain it, but you have to ask me, other than that the answer is 5(x+7)(9x-4).
Kenny’s dad drove 194 miles in the afternoon and 54 in the morning