Triangle lmn is similar to triangle pqr. the length of pq is twice the length of lm.

if the cosine of angle l is 9/19 , what is the cosine of angle p?
a. 18/19

b. 19/9

c.9/19

d. 28/19

C.

Step-by-step explanation:

Since triangle LMN is similar to triangle PQR angle P and angle L are congruent.

If  ,then

The correct option is C.

susie has 7 apples

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2