A store has 48 different phones available with or without caller ID, and with or without a speaker phone. Using two way frequency table below, what is
P(Speakerphone Caller ID)? Type your answer in fraction
Speakerphone No Speakerphone
Total
Caller ID
18
2
20
No Caller ID
16
12
28
Total
34
14
48
34/48
O = 20/40
o 18/40
- 18/34
O = 10/20

the third picture

step-by-step explanation:

cant open file sorry!

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

i need points

step-by-step explanation: