1. An electrical store has numerous televisions for sale. A television can have a large, medium
or small screen size, and it can have a plasma
or LCD screen.
( Show all possible different types of
television using a two-way table.
(ii) Find the number of different types of
television a customer can purchase.

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175

yes

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

$54.99

step-by-step explanation:

$54.99 includes 500 min. if she does not exceed 500 min then her bill is $54.99