Answer:
x = 2
Step-by-step explanation:
Since the triangles are similar then corresponding sides are in proportion, that is
=
, substitute values
=
( cross- multiply )
7x² = 28 ( divide both sides by 7 )
x² = 4 ( take square root of both sides )
x =
= 2
25% is 1/4.
This means that 1/4 of the books in the library is 54, so just multiply 54 by 4, which gives you 100%, or all of the books. 54 times 4 is equal to 216, so there are 216 books in the library.
Answer:
reflection of Δa about y=2 results in Δb
Step-by-step explanation:
Answer:
(x+6)(x-1)
Step-by-step explanation:
factor using the x-box method