THE ANSWER IS LYFE 3432423
Answer:
x=6
Step-by-step explanation:
3(x-2)=12
divide both sides by 3
x-2=4
add 2 to both sides
x-2+2=4+2
combine like terms
x=6
Unfortunately you cannot use logs to solve this.
However, it shouldn't take too long to use guess-and-check to see that

Showing that x = 2 is the solution to the equation.
You can use a graphing calculator to graph out
and
. The two curves cross at (2,13). The x coordinate of that intersection is what we're after. GeoGebra and Desmos are two free options you can pick from in terms of a graphing calculator.
Answer:
15cm
Step-by-step explanation:
Theorem: All tangents to a circle from the same point are equal.
Sine E, F, G and H are points of Tangency, by the theorem above:
The diameter line EC divides the Isosceles Trapezoid into two equal parts.
Therefore:
We then have by the equality above that:
BC=BF+FC
=5+10
=15cm