Answer:
Step-by-step explanation:
For any angle , we have that:
Quadrant:
means that is in the first quadrant. This means that both the sine and the cosine have positive values.
Find the cosine:
Since the angle is in the first quadrant, the cosine is positive.
A^2+b^2= c^2
3^2+4^2=c^2
9+16=c^2
25=c^2
5=c
Answer: 10.5 : 20.2
Step-by-step explanation:
Answer:
a=11
Step-by-step explanation:
Let's solve your equation step-by-step.
√a+5=4
Solve Square Root.
√a+5=4
a+5=42(Square both sides)
a+5=16
a+5−5=16−5(Subtract 5 from both sides)
a=11
Check answers. (Plug them in to make sure they work.)
a=11(Works in original equation)
Either 1/10 or 10%
Hope this helps!!!