Answer:
-21
Step-by-step explanation:
1-2+4-8+16-32
=-21
Answer:
x=6
Step-by-step explanation:
When you have 7x+5=5x+17, you try to get the variables on one side and the constants on the other. Subtract 5x from the right and from the left: 2x+5=17. Next, subtract 5 from the left and from the right: 2x=12. The last step is to get rid of the coefficient of x and to do that divide it by the coefficient(in this case divide both sides by 2). After dividing 2x and 12 by 2 you get x=6.
Answer:
After 10 years
Rick will have $1,480.24
Sally will have $1,500
Step-by-step explanation:
Data provided in the question:
Principle amount = $1,000
Now,
For Rick
Interest rate by bank, r = 4% = 0.04
Time period, n = 10 years
Now,
Final amount after 10 years with Rick using the compounding formula
Final amount = Principle × (1 + r)ⁿ
= $1,000 × (1 + 0.04 )¹⁰
= $1,480.24
For Sally
Amount paid each year = $50
Therefore,
Total amount paid in 10 years = $50 × 10
= $500
Thus,
Final amount Sally will have after 10 years
= $1,000 + Total amount paid in 10 years
= $1,000 + $500
= $1,500
Hence,
After 10 years
Rick will have $1,480.24
Sally will have $1,500
Answer:
9
Step-by-step explanation:
I used tan but there's probably an easier way to do this but 4*tan(20)=8.94 then round it up to 9
