Answer:Look up "Everything You Need To Know About (Your Subject) In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in my class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught in it so it might help you.
 
        
             
        
        
        
Answer:
6194.84
Step-by-step explanation:
Using the formula for calculating accumulated annuity amount 
 F = P × ([1 + I]^N - 1 )/I
Where P is the payment amount. I is equal to the interest (discount) rate and N number of duration
For 40 years, 
X = 100[(1 + i)^40 + (1 + i)^36 + · · ·+ (1 + i)^4] 
=[100 × (1+i)^4 × (1 - (1 + i)^40]/1 − (1 + i)^4
For 20 years, 
Y = A(20) = 100[(1+i)^20+(1+i)^16+· · ·+(1+i)^4] 
Using X = 5Y (5 times the accumulated amount in the account at the ned of 20 years) and using a difference of squares on the left side gives
1 + (1 + i)^20 = 5 
so (1 + i)^20 = 4 
so (1 + i)^4 = 4^0.2 = 1.319508
Hence X = [100 × (1 + i)^4 × (1 − (1 + i)^40)] / 1 − (1 + i)^4
= [100×1.3195×(1−4^2)] / 1−1.3195
X = 6194.84
  
        
                    
             
        
        
        
Answer:
Mean for Labradors: 65 
Step-by-step explanation:
This is how to find the M.A.D. 
Step 1. Find the mean. To do that, you add all the numbers and divide that number by how many numbers you have which is 10. All the numbers together is 650. That divided by 10, is 65. That is your mean.
Step 2. Once you have that, subtract the mean from all 10 numbers. 
Step 3. Find the mean of the 10 numbers which you have subtracted 65 (the mean) from. If the number you subtracted is a negative, make it a positive.
 
        
             
        
        
        
A) N +2 = Q which equals 
A) N -Q = -2
B) .05N +.25Q = 3.50  multiplying A) by .25
A) .25N -.25Q = -.5  then adding A) and B)
.30N = 3
Nickels = 10 Quarters = 12
*************DOUBLE CHECK ***************
.05 nickels = $0.50  .25 Quarters = $3.00