I hope this helps you
z^2-2z-35 =0
(z-7)(z+5)=0
z=7
z= -5
Answer:
C. R90
Step-by-step explanation:
Hope this helps
Answer:
y = -x - 6
Step-by-step explanation:
y = mx + b
-1 = -5m + b --> b = 5m - 1
-9 = 3m + b --> b = -3m - 9
5m - 1 = -3m - 9
8m = -8
m = -1
Plug back in the first equation.
-1 = -5(-1) + b
-1 = 5 + b
b = -6
Answer:people are going to play a ball game. Each team has 3 players.
How many different team combinations are possible? 6C3 = 6!/(3!3!) = 20 possible
Step-by-step explanation:
The correct question is
A family is building a circular fountain in the backyard. The yard is rectangular and measures 10x by 15x and the fountain is going to be circular with a radius of 4x. Once the fountain is built, what will be the area of the remaining yard?
Step 1
find the area of rectangular yard (A1)
A1=(10*x)*15*x=150*x² units²
Step 2
find the area of the circular <span>fountain (A2)
A2=pi*r</span>²---------> pi*(4x)²=16*pi*x²
Step 3
find <span> the area of the remaining yard (A3)
A3=A1-A2----------> 150*x</span>²-16*pi*x²----> x²*[150-16*pi]----> 2*x²*[75-8*pi]
the answer is the option A)
<span> 2x</span>²<span> (75-8pi )</span>
