Answer:
x = 7
y = 2
Step-by-step explanation:
x + y = 9 but y = x - 5
x + (x - 5) = 9
2x - 5 + 5 = 9 + 5
2x/2 = 14/2
x = 7
y = x - 5
y = (7) - 5
y = 2
(11x2 + 2x3 + 14 +17x) ÷ (2x + 5)
= (2x^3 + 11x^2 + 17x + 14) ÷ (2x + 5)
= x^2 + 3x + 1 r 9
Answer:
11.8 % empty
Step-by-step explanation:
volume of cylinder : pi × r² × h
attention ! the question gives us diameter, so for radius we need to cut them in half.
Va = pi × (14/2)² × 9 = pi×49×9 = 1385.44236... ft³
Vb = pi × (10/2)² × 20 = pi×25×20 = 1570.79633... ft³
after filling B with everything in A there is still some empty volume in B
Vb empty = Vb - Va = 185.35397... ft³
so,
100% Vb = 1570.79633... ft³
1% Vb = 15.7079633... ft³
so, how often does 1% of the total volume of B fit into the remaining empty volume of B ?
185.35397... / 15.7079633... = 11.8%