The answer is D, because in the step before that it was proved that the triangles were congruent and CPCTC is used after they are proved congruent.
Answer:
10 ft
Step-by-step explanation:
Square root of 100 = 10
Estimate 189 to the nearest tenth which would be 190. And then do the same for 643 which would be 640. 640-190= 450
X^2-9=-5
x^2-4=0
(x+2)(x-2)=0 [Difference of Two Squares]
x=-2,2
-2 is the smaller root.
Compound interest:
where
is the amount you start with,
is the interest rate,
is the number of times interest is compounded per year, and
is amount of time that passes.
