A^2 + b^2 = c^2
9^2 + b^2 = 12^2
81 +b^2 = 144
-81 (subtract 81 from both sides of the equation)
b^2 = 63
b = square root of 63
Answer:
(69/40 , 7/11)
Step-by-step explanation:
multiply the bottom equation by 2
-4x + 8y = 12
4x+3y=-5
cancel out both 4x
8y+3y=11y
12+ -5 = 7
11y=7
divide both sides by 11
y=7/11
substitute that in for y
4x + 3(7/11) = -5
4x + 21/11 = -5
4x = -69/10
x= 69/40
Answer:
125 barn 75 sleeping
Step-by-step explanation:
5/8 of 200 cows
of means multiply
5/8 x 200 = 1000/8 = 125
125 cows grazing
200-125 = rest of cows
75 = rest of cows sleeping
Well 1 could be anything you want it to equal to so . if your using thirds 2/3 can fit into one once because if you do it twice you’d get 4/3 and that’s over 1
