Answer: 5/14
Explanation:
19-14=5
X=rcos∅=r cos (-210)=r cos 210=rcos (180+30)=-r cos 30
1
Answer:
The listener is approximately 71.414 feet far from the whisperer.
Step-by-step explanation:
We must remember that two fundamental variables for every ellipse are the major semiaxis (
) and the minor semiaxis (
). The major semiaxis equals a half of the length of the whispering gallery, whereas the minor semiaxis equals a half of the width of the whispering gallery. These are:
and 
The distance between both whisperers (
), measured in feet, is two times the distance between center and any of the foci (
), measured in feet, whose valued is obtained by using this Pythagorean identity:
If and , then:
The listener is approximately 71.414 feet far from the whisperer.
Answer:
Monthly deposit= $323.78
Step-by-step explanation:
Giving the following information:
Future Value (FV)= 12,000*0.7= $8,400
Number of periods (n)= 2*12= 24
<u>We weren't provided with the interest rate, suppose an annual interest rate of 8%.</u>
Interest rate= 0.08/12= 0.00067
<u>Now, to calculate the monthly deposit, we need to use the following formula:</u>
<u></u>
FV= {A*[(1+i)^n-1]}/i
A= monthly deposit
Isolating A:
A= (FV*i)/{[(1+i)^n]-1}
A= (8,400*0.0067) / [(1.0067^24) - 1]
A= $323.78
I don’t understand that either good luck though
