Answer: tanA=3/4
Step-by-step explanation: If cosA=4/5 then
sinA=√(1−cos2A) {Because sin^2A+cos^2A=1}
=>sinA=√(1−16/25)
=>sinA=√(9/25)
=>sinA=3/5
Now as tanA=sinA/cosA
=>tanA=3/5×5/4 {Because 1/cosA=5/4}
=>tanA=3/4
Answer:
There is one solution
Step-by-step explanation:
I did the Khan Academy lesson and I got it correct.
1.) C is the correct choice
4.) B is the correct choice
15 because it is a 50/50 chance each coin flip meaning you spilt 30 in half making it 30
