Answer:
<BAC = 20°
Step-by-step explanation:
It is given in the question that all 9 triangle which are formed are congruent, which means that in all triangles, the angle which is formed at point A is same.
Which means 9 angles collectively can be written as 9 · <BAC
If we consider all the 9 triangles, we can see in the figure that it forms a semicircle.
A semicircle has a total sum of angles equal to 180°
So we can write that:
9 · <BAC = 180°
Simplify for <BAC
<BAC = 20°
Answer:
30/80 is the fraction of decrease. Converting this to a fraction with a denominator of 100, we get the fraction;
37.5/100
Now we just take the numerator of the number to get the percent, which is the solution.
37.5%
Answer:
0.4
Step-by-step explanation:
just solve it like an equation.
The first one is x=-1
The second one is b=1
The third one is t=3
First get into y-int form:
y=−<span><span>2x/</span>3</span>+<span><span>5/3
fill in y point:
</span></span>-3 = −<span>2/3(9) + b
b= 3
so
</span>y= −2/3(x) + 3
