Answer:
cosa = 3/5
Step-by-step explanation:
Use Trignometrical identity cosa = √
1
−
sin
^2a
cos a = √
1
−
16
/25 = √
9
/25 = 3
/5
Answer:
Yup! Great Job!
Step-by-step explanation:
Answer:
14/42
Step-by-step explanation:
Use the keep change flip strategy or butterfly multiply
Answer:

Step-by-step explanation:

Distribute -3 through the parentheses
Similarly, Distribute 4 through the parentheses
⇒
Collect like terms
⇒
Calculate
⇒
Move 33 to right hand side and change it's sign
⇒
Calculate
⇒
Hope I helped!
Best regards!!