1)Calculate the product:
21a + 10a - 3a
2)Collect like terms:
28a
Answer:
28a
Answer:
C
Step-by-step explanation:
Triangle CGF and triangle CED are similar. Hence, the ratio of their corresponding sides are equal. Thus we can write:

<em>We can now cross multiply and solve for CD:</em>

Since GF is a midsegment of CDE, CD is double of CF. So we can write:

<em>By using quadratic formula
and with a=3, b= -5.2, and c= -1.6, we find the value of x to be:</em>

<em>Since the expression for CD is
, we plug in
into this expression to find value of CD:</em>

The correct answer is C
Hey there we cannot see the question :D Sorry about that I would answer but I cannot!
d
Answer:
They are both acute angles
60° because its not hafe evin and 90° is hafe so its 60°