The product of two numbers is 2925 and their HCF is 15. Find the LCM of these numbers.

Step-by-step explanation:

HCF x LCM = The product of the numbers

15 x? = 2925

? = 2925/15

? = 195

So the LCM is 195

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