Answer:
A=2πrh+2πr2=2·π·2·4+2·π·22≈75.39822
Step-by-step explanation:
<span> Let d = dist traveled one way
Write a time equation;
time = dist/speed
d/20+d/30 = 12 </span>
Answer:
12q -1/2
Step-by-step explanation:
Answer:
9 even numbers are between 11 and 30.
Step-by-step explanation:
12, 14, 16, 18, 20, 22, 24, 26, 28
General equation of a circle is (x+a)^2 + (y+b)^2 = radius ^2
a and b are the centre and you put in the inverse so as x=-4, a=-4. same for b as the y-coordinate is positive, it becomes negative
the last part is the radius of the circles squared so just 7^2 = 49 !
