Answer:
C. 15 units,
Step-by-step explanation:
The y coordinates are both 39 so the line joining the 2 points is a horizontal line.
Distance = 18-3 = 15.
check the picture below.
so, we know the dimensions of the pool, is a 20x10, so its area is simply 200 ft², and we know the walkway is 216 ft², so the whole thing, including pool and walkway is really 200 + 216 ft².
now, as you see in the picture, the dimensions for the combined area is 20+2x and 10+2x, since the walkway is "x" long, therefore,
![\bf \stackrel{length}{(20+2x)}\stackrel{width}{(10+2x)}=200+216\implies \stackrel{FOIL}{4x^2+60x+200}=200+216 \\\\\\ 4x^2+60x=216\implies \stackrel{dividing~by~4}{x^2+15x=54} \\\\\\ x^2+15x-54=0\implies (x+18)(x-3)=0\implies x= \begin{cases} -18\\ \boxed{3} \end{cases}](https://tex.z-dn.net/?f=%20%5Cbf%20%5Cstackrel%7Blength%7D%7B%2820%2B2x%29%7D%5Cstackrel%7Bwidth%7D%7B%2810%2B2x%29%7D%3D200%2B216%5Cimplies%20%5Cstackrel%7BFOIL%7D%7B4x%5E2%2B60x%2B200%7D%3D200%2B216%20%5C%5C%5C%5C%5C%5C%204x%5E2%2B60x%3D216%5Cimplies%20%5Cstackrel%7Bdividing~by~4%7D%7Bx%5E2%2B15x%3D54%7D%20%5C%5C%5C%5C%5C%5C%20x%5E2%2B15x-54%3D0%5Cimplies%20%28x%2B18%29%28x-3%29%3D0%5Cimplies%20x%3D%20%5Cbegin%7Bcases%7D%20-18%5C%5C%20%5Cboxed%7B3%7D%20%5Cend%7Bcases%7D%20)
notice, it cannot be -18, since is a positive length unit.
Answer:
fraction which has a terminating decimal as its decimal expansion is:
1/5
Step-by-step explanation:
We are given 4 fractions:
1/3 , 1/5 , 1/7 and 1/9
We have to find which fraction has terminating decimal.
1/3 = 0.33333...
1/5 = 0.2
1/7 = 0.142857142857...
1/9 =0.11111.....
Hence, fraction which has a terminating decimal as its decimal expansion is:
1/5
1 : the perimeter of a circle The circle measures 22 inches in circumference. 2 : the external boundary or surface of a figure or object : periphery from the center to the circumference of the sphere.
1, 3, 5
Or
Ratio of white flowers to pink flowers
Ordered pair (8,12)
Number of pink and white flowers in one row of molly's garden