54 divided by 5 is 10.8 which is her height multiply by 2 because it twice her height which is 21.6 the do 54-21.6 which gives you an answer of 32.4
Answer:
A = 1/2*(2 + 8)*4 + 1/2*(8 + 7)*2 = 35
35 * 2.25^2 = 177.2 ft² --> Answer c.
Answer:
D. 21 ft
Step-by-step explanation:
We need to use Power of Points, which basically says that for intersecting chords in a circle (see attachment), a * b = c * d.
Here, we can say that a = x, b = 6, c = 7, and d = 18. Then, we have the equation:
ab = cd
x * 6 = 7 * 18
6x = 126
x = 21
Thus, x is 21 ft.
Hope this helps!
Answer:

Step-by-step explanation:
Move
to the denominator in 
using the negative exponent rule 