Answer:
B
Step-by-step explanation:
Trapezoids have only one pair of parallel lines.
Step-by-step explanation:
x=20
y=100
solution in image
Answer: G does not show the relationship
Step-by-step explanation:
x is the number of months and he originally had 25 coins. The correct representation of this equation would be y=8x+25 since he adds 8 coins every month. So, G does not show the relationship.
Answer:
.
Step-by-step explanation:
We have been given a geometric sequence 18,12,8,16/3,.. We are asked to find the common ratio of given geometric sequence.
We can find common ratio of geometric sequence by dividing any number by its previous number in the sequence.

Let us use two consecutive numbers of our sequence in above formula.
will be 12 and
will be 18 for our given sequence.

Dividing our numerator and denominator by 6 we will get,

Let us use numbers 8 and 16/3 in above formula.



Therefore, we get
as common ratio of our given geometric sequence.
Answer:
B
Step-by-step explanation:
<DCE = BCA (vertical angles are congruent)
DC corresponds to CB,
DC/CB = 15/5 = 3
EC corresponds to CA,
EC/CA = 12/4 = 3
Thus, two sides in ∆ABC are proportional to two corresponding sides in ∆EDC, and also, the included angle in ∆ABC and ∆EDC are congruent to each other. Therefore, based on the SAS Similarity Theorem, ∆ABC and ∆EDC are similar.