Answer:
D
Step-by-step explanation:
out of the choices
A) 2x-y=-2
3x+2y=-10
B) x+4y=3
2x+5y=3
C) 2x+3y=5
x-4y=-14
D) 3x+4y=15
x+y=5
only the system in D has a solution of x=5 and y=0
solve by substitution x+y=5 so x=5-y
plug into the other equation so 3(5-y)+4y=15
distribute 15-3y+4y=15 then minus 15 on both sides and combine like terms
so y=0 then put that value back into the other equation
so x+y=5 equals x+0=5 so x=5 this means the solution to the system of equations is the point (5,0)
Hope this helps! :)
Answer:
13.73 ft²
or 14 ft² if youre rounding
Step-by-step explanation:
area of circle:
A≈50.27
area of the square:
A = 64
subtract the area of the circle from the area of the square
64 - 50.27
= 13.73 , or 14 if you round it
Answer: The figure is a regular hexagon.
Step-by-step explanation:
7.3 * 10^2= 730. Just move the decimal two laces to the right.
