Answer:
Interest rate: 9%
Step-by-step explanation:
Using the simple interest formula: A=P(1+rt)
A=Final amount
P=Principal amount
r=rate
t=time (years)
We just need to put in the information we have from the question and solve for r.
7,620=6000(1+r3)
7,620/6000=1+r3
1.27=1+r3
0.27=r3
r=0.09
r=9%
Answer: D
<u>Step-by-step explanation:</u>
f(x) = 2x² - x + 5
f(-3) = 2(-3)² - (-3) + 5
= 2(9) + 3 + 5
= 18 + 3 + 5
= 26
C. No, this is not a valid inference because she asked only 35 families
Answer:
y = 
Step-by-step explanation:
We are given the point (3, 10).
The second point is 2 on the x-axis and -7 on the y-axis. So our second point is: (3 + 2, 10 - 7) which is (5, 3).
Our formula for slope is m =
= 
So, our equation would be
= 
Using the standard formula of a line, y = mx + b, we can substitute for the slope, m.
y =
+ b
Now, we can substitute a point on the line to determine the y-intercept:
Using the point (3, 10),
10 =
+ b
b = 10 + 
b = 
So our full equation is: y = 
Answer:
that is so ez but i cant help u cheat in your exam