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what are the solutions to the system of equations?

x^2 + y^2 = 5
y = 2x

) and

Step-by-step explanation:

x² + y² = 5 (1)

y = 2x(2)

put y = 2x in (1) :

x² + (2x)² =5

x²+4x² =5

5x² = 5

x² = 1

so : x = 1 or x = -1

if x = 1   y = 2

if x = -1  y = - 2

two solutions : (1;2)   , ( - 1 ; -2 )

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s