Question

Only number 14 and pls explain txs

Answer 1

Explanation:

since right angle triangle,then:

180-(90+35)=B=55

use cosB=opposite/hypotenuse

cos55=x/12

x=cos55x12

x=6.88

Answer 2

9514 1404 393

Answer:

9.8

Explanation:

The mnemonic SOH CAH TOA reminds you of the relationship involving the adjacent side and the hypotenuse:

Cos = Adjacent/Hypotenuse

cos(35°) = x/12

Multiplying by 12 gives x:

x = 12·cos(35°) = 12×0.81215

x = 9.8