If you mean to find 4 cos(2<em>a</em>), then recall the double angle identity for cosine:
cos(2<em>x</em>) = 2 cos²(<em>x</em>) - 1
so that
4 cos(2<em>a</em>) = 4 (2 cos²(<em>x</em>) - 1) = 4 (√3 - 1)
Answer:
FV= 24,000*(1.07^-10)
Step-by-step explanation:
Giving the following information:
Present Value (PV)= $24,000
Decrease rate (d)= 7%
Number of periods (n)= 10 years
<u>To calculate the value of the car after 10 years, we need to use the following formula:</u>
FV= PV*(1+d)^-n
FV= 24,000*(1.07^-10)
FV= $12,200.38
She paid $49.12
If one pound is 5.17 dollars
You would have to multiply the two given numbers
Answer:
it is 2
Step-by-step explanation: