They are equivalent
30:12 => 5:2
40:16 => 5:2
hope this helsp
Answer:
DF = 14
Step-by-step explanation:
Andrew was wrong in the assumption that DE = EF
Segments of tangents to a circle from the same external point are congruent
That is
EF = FG = 8
Then
DF = DE + EF = 6 + 8 = 14
Cut the shape into shapes you know the area of and do the formula this helps
Answer:
99
Step-by-step explanation:
8 + 7(4^2 - 3)
Solve what’s in the parentheses first, starting with 4^2:
8 + 7(16 - 3)
Continue solving what’s in the parentheses:
8 + 7(13)
Considering the order of operations, multiply 7(13) before adding 8:
8 + 91 = 99
Answer:
Missing constant: 100
Step-by-step explanation:
perfect square (a - b)^2 = a^2 - 2ab + b^2
In this case
20x = 2 * x * 10
and
10^2 = 100
so
(x - 10)^2 = x^2 - 20x + 100
