The area of a triangle is 150 cm- and its sides are in the ratio 3: 4:5. What is its perimeter? (A) 10 cm
(B) 30 cm (C) 45 cm
(D) 60 cm

15 units use socratic

step-by-step explanation: 15 units

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

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.