Question 7 of 27 A DEF is a dilation of A ABC by a scale factor of . Which of the following
proportions verifies that A ABC and ADEF are similar?
B
15
12
A 30
9
о
A.
AB
AC
DE
EF
O
B.
AC
DF
O
c.
DE
BC
EF
E PREVIOUS
arch

9514 1404 393

  B. AB/DE = AC/DF

Step-by-step explanation:

When triangles are similar, corresponding sides have the same ratio. We are told that ∆ABC ~ ∆DEF. This means that corresponding sides are ...

  AB : DE

  BC : EF

  AC : DF

Any pair of these ratios can be used to write the proportion. Each proportion can be written in 4 different ways. The answer choices show that AB and DE are involved in the proportion we want, so we can have any of ...

  AB/DE = BC/EF

  AB/DE = AC/DF . . . . . . matches choice B

  AB/AC = DE/DF

Additional comment

When we say a proportion can be written 4 ways, we mean all of these versions of a proportion are fully equivalent:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

according to egenuity the answer is

step-by-step explanation:

d. 344.22