A.) First set up the equation:
L = 2(w)
w = w
B.) 2(w) * w = 20
=2w² = 20
=w² = 10, so w = 3.16 m²
The area is then 6.32 * 3.16, which is 19.97, but if you round both numbers, it becomes 20.16.
C.) 3.16 to the nearest tenth is 3.2.
D.) This is 6.32, which is 6.3 to the nearest tenth.
Answer:
P ( t ) = Io^2*R*0.5* (1 - cos ( 2wt) )
Step-by-step explanation:
Given:-
- The given current at time t, with maximum current supplied (Io) is:
I(t) = Io*sin(tw)
Find:-
The power P in terms of cos (2wt)
Solution:-
- The formula for power (P) in an AC circuit is given by the expression:
P ( t ) = [I(t)]^2*R
P ( t ) = [Io*sin(tw)]^2 *R
P ( t ) = Io^2*R*sin(tw)^2
- We will use cos (2w) : Double angle formula as follows,
[sin(wt)]^2 = 0.5* (1 - cos ( 2wt) )
- Substituting in our power expression we have:
P ( t ) = Io^2*R*0.5* (1 - cos ( 2wt) )
Refer to the figure shown below.
The transformation that maps ΔABC onto ΔA'B'C' is a reflection across the x-axis (or across the line y = 0).
When ΔA'B'C' is reflected across the line x = -2 (shown in the figure) to form ΔA"B"C", the vertex of ΔA"B"C" will have the same coordinates as B', which is (-2,-6).
Answer:
Starting number= 120
Step-by-step explanation:
Giving the following information:
After selling 65% of her lacrosse sticks, she has 42 sticks left.
<u>To calculate the starting number of lacrosse sticks, we need to use the following formula:</u>
Starting number= sticks left / proportion of sticks on stock
Starting number= 42 / 0.35
Starting number= 120
