a map is drawn using a scale of 1cm/80mi . two cities are 280 miles apart. how far apart are the cities on the map

3.5 cm

Step-by-step explanation:

Use a proportion.

280 miles is to 80 miles as x cm is to 1 cm

280/80 = x/1

28/8 = x/1

8x = 28

x = 3.5

3.5 cm

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

it has the same slope and a different y-intercept

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