Answer:
y= 77
Step-by-step explanation:
<em>Write down the equation for direct proportion.</em>
y= kx, where k is a constant.
<em>Find the value of k.</em>
When x= 12, y= 84,
84= k(12)
12k= 84
k= 84 ÷12
k= 7
<em>Substitute</em><em> </em><em>the</em><em> </em><em>value</em><em> </em><em>of</em><em> </em><em>k</em><em> </em><em>into</em><em> </em><em>the</em><em> </em><em>equation</em><em>.</em>
y= 7x
When x=11,
y= 7(11)
y= 77
80% because its a huge amount the bank account goes to
Tgα = tan(α) = sqrt(2)/1 = opposite/ adjacent
opposite = sqrt(2)
adjacent = 1
hypotenuse = sqrt(opposite^2 + adjacent^2)
= sqrt(sqrt(2)^2 + 1^2) = sqrt(3)
sin(α) = opposite/hypotenuse
= sqrt(2)/sqrt(3)
cos(α) = adjacent/hypotenuse
= 1/sqrt(3)
now we can calculate the value of
5sin²α+3cos²α / 3sin²α-5cos²α
... do the math
its in the down 4
i dont think so if im right