ANSWER: 4in^2
Explanation: 4x1=4
Step-by-step explanation:
5.75 miles in 1 hour
= (5.75 * 4) miles in (1 * 4) hours
= 23 miles in 4 hours.
7x - 2y = -3 . . . (1)
14x + y = 14 . . . (2)
(1) x 2 => 14x - 4y = -6 . . . (3)
(2) - (3) => 5y = 20
y = 20/5 = 4
From (1); 7x - 2(4) = -3
7x - 8 = -3
7x = -3 + 8 = 5
x = 5/7
Solution = (5/7, 4)
Answer:
you can use the quadratic formula to get theses:-
x =[-8 +/- sqrt(8^2 - 4*2*-3)] / 4
= -2 +/- sqrt88) / 4
= 0.35, -4.35 to nearest hundredth
Step-by-step explanation: