Answer:
a)=251.2 cm b)=50240 cm
Step-by-step explanation:
a) The formula for calculating the circumference of a circle is c=d*pie, where D is the diameter of the circle.
Therefore, C = 2 * 40 * 3.14 = 251.2 cm
b) The distance covered by 200 revolutions of the wheel is 200 times the circumference, 200*251.2=50240 cm.So to think about this we can assume that there is a point A on the wheel, the distance that point A travels when it rotates 200 times.
For example:
Find: (3-i)+(2+3i) by graphing
Step 1: Graph 3-i and 2+3i on the complex plane. Connect each of these numbers to the origin with a line segment.
Answer:
16/1 I think
Step-by-step explanation:
the real solutions for the equation 
are -
Step-by-step explanation:
= 
= 0
We can write 64 as 
+ = 0
using the identity ( 
)
we get,
= 
= 
....................(1)
solving the quadratic equation ,
=0
solutions of this quadratic equation can be obtained by
let use y for factors
<u />
..................(2)
from the equation 1 we have,
which gives solution 
and from equation 2 we got
so the real solutions for the equation are -
