Answer:
Step-by-step explanation:
Cos is Adjacent over Hypotenuse, (see picture below)
x/xsqrt(2)
1/sqrt(2)
sqrt(2)/2
Answer:
f(5)=(5)²=25
f(-5)=(-5)²=25
NB. Some teachers don't want 2 equals on one line, if it's your case please don't write the 2 equals on the same line
Answer:
Step-by-step explanation:
d=22 yd
r=11 yd
Volume V= 1/3×π ×11²×22=1/3×3.14×121×22≈2726.23 yd²
Answer:
59
Step-by-step explanation:
If we convert from degrees into radians, we can use the formula
, where s is the arc length, r is the radius and θ is the angle in radians.
To convert from degrees to radians, we multiply by 
So 
is our angle in radians, and we have the radius - we can now plug in these two values into our equation.
