v(value)=6000-0.15t(years)
Part B would be $445.50
4.$3132.03
5$2662.23
6$2262.89
7$1923.46
8$1634.94
9$1389.70
10$1181.24
11$1004.05
12$853.45
13$725.43
14$616.61
15$524.12
16$445.50
We can use the Pythagorean theorem to find the length of the third sides.
c²=a²+b²
Where c is the longest (unkwon ) side, a and b are the remaining sides. So,
c²=7²+3²
= 49+9
= 58
So, c=√58
So, the length of the third side or the side length of square is √58.
So, the area of the shaded region (square)= c²
=(√58)²
=58
So, the area of the square is 58 units².
Answer:
15
Step-by-step explanation:
Answer:
A: 20 or 70
A:between 20 and 70
B:more than 70
Step-by-step explanation:
Plato
Answer:
Look below
Step-by-step explanation:
(a) The area of a triangle is:
![A=\frac{1}{2}bh](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7Dbh)
The height of this triangle is h and it's base is 4+h so...
![A=\frac{1}{2}*[h*(h+4)]](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7D%2A%5Bh%2A%28h%2B4%29%5D)
![A=\frac{1}{2}*(h^2+4h)\\A=\frac{h^2}{2}+2h](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7D%2A%28h%5E2%2B4h%29%5C%5CA%3D%5Cfrac%7Bh%5E2%7D%7B2%7D%2B2h)
(b) If the height is 8 cm, then the base is 4+8 which is 12 cm so...
![A=\frac{1}{2}*8*12=4*12=48 \ cm^2](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7D%2A8%2A12%3D4%2A12%3D48%20%5C%20cm%5E2)