Answer:
66 cm^2
Step-by-step explanation:
By equating the area we get x = 6.
The second one 3x-2y=-1 the answer get one because I have negative 2 than u add 3 to that negative 2 it get 1
Answer:
Please see attachment
Step-by-step explanation:
Please see attachment
Given that,
A circular running track is ¼ mile long.
Elena runs on this track, completing each lap in 1/16 of an hour
To find,
Elena’s running speed.
Solution,
Formula used :
Speed = distance/time
So, Elena’s running speed is 4 mph.
The equation 4x = y is solve for y so we can substitute the expression 4x for y in the other equation.
2x² - (4x) = 0 ← Substituted 4x for y...Hug'em when you plug'em (use ( )s)
2x² - 4x = 0 ← prepare to factor
2x(x - 2) = 0 ← factored out the GCF
2x = 0 or x - 2 = 0 ← zero product property
x = 0 or x = 2 ← solved each mini equation
If x = 0, then y = 4(0) = 0. (0, 0) is a solution
If x = 2, then y = 4(2) = 8. (2, 8) is a solution
The solution set is {(0,0), (2,8)}