Given:
Beau's grandmother started depositing $500 in a savings account each year in his birthday
Rate of simple interest = 2.5%
Time = 3 years
To find:
The interest.
Solution:
Formula for simple interest:
where, P is principal, r is rate of interest and t is time in years.
Interest for first year is
New principal = 
Interest for second year is
New principal = 
Interest for third year is
Total interest for 3 years is
So, interest after 3 years is $75.
Therefore, the correct options A.
Answer:
A. 3c
Step-by-step explanation:
c + c + c = c × 3
c × 3 = 3c
Answer:
30000
Step-by-step explanation:
when dividing the powers, you subtract them.
Step-by-step explanation:
a) Let y = f(x) = 3x - 2x^2
f(-2) = 3(-2) - 2(-2)^2 = p
= -6 - 8
= -14
= p
f(2.5) = 3(2.5) - 2(2.5)^2 = q
= 7.5 - 12.5
= -5
= q
b) graphing
c) From the graph, you should be able to verify the following:
i) f(0.5) = 3(0.5) - 2(0.5)^2 = 1
ii) 0.5 = 3x - 2x^2 or x = 1.3, 0.2
iii) the maximum occurs at
f(0.75) = 1.125
d) the equation for the line of symmetry is x = 0.75
Answer:
no solution
Step-by-step explanation:
use grouping method:
f(x) = x^2 - 4x + 2
factor it:
when we try to factor the above equation, we see that there is no ordered pair in which the numbers multiple to -4 and add to 2, so there is no solution
