<span>A) 2a + 3b = 12
B) ab = 6 solving for a
B) a = 6 / b then we substitute this into equation A)
</span><span>A) 12 / b + 3b = 12 </span><span>multiplying this by "b"
A) 12 + 3b^2 = 12b
A) 3b^2 -12b +12= 0 dividing by "3"
A) b^2 -4b + 4 = 0
Factoring
(b-2) * (b-2) = 0
b = 2
Since b = 2 then a = 3
</span>NOW, we put these numbers into:
<span>8a^3 +27b^3
</span>
8*3*3*3 + 27*2*2*2
216 + 216
The answer is 512
BC I WONT DONT HAVE TO DO MY WORK
Answer:
tan(20) = 4 / x
tan(20)x = 4
x = 4 / tan(20)
<u>x = 10.99 units</u>
Step-by-step explanation:
Answer:
90°
Step-by-step explanation:
Complementary angles sum to 90°
Supplementary angles sum to 180°
The answer is (12 ÷ 4) + (16 ÷ 4) = (12 + 16) ÷ 4
