I don't know what to do for this question. There are two i already did the second one its the one i circled I don't get. Please if u can show me step by step.

Step-by-step explanation:

Pythagorean Theorem:

base = √(20² - 12²) = 16 cm

x = ½(12) = 6 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

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: