Answer:
Colin will have 421824 pennies after 2 years
Step-by-step explanation:
Given:
Amount invested in bank by Colin (P) = £3900
Rate of interest (r) = 4%
Time period (n) = 2 years
To find: Amount after 2 years (A)
Solution:
Formula for amount (A) is ![A=P\left ( 1+\frac{r}{100} \right )^n](https://tex.z-dn.net/?f=A%3DP%5Cleft%20%28%201%2B%5Cfrac%7Br%7D%7B100%7D%20%5Cright%20%29%5En)
![A=3900\left ( 1+\frac{4}{100} \right )^2\\=3900\left ( 1+\frac{1}{25} \right )^2\\=3900\times \frac{26}{25}\times \frac{26}{25}\\=4218.24](https://tex.z-dn.net/?f=A%3D3900%5Cleft%20%28%201%2B%5Cfrac%7B4%7D%7B100%7D%20%5Cright%20%29%5E2%5C%5C%3D3900%5Cleft%20%28%201%2B%5Cfrac%7B1%7D%7B25%7D%20%5Cright%20%29%5E2%5C%5C%3D3900%5Ctimes%20%5Cfrac%7B26%7D%7B25%7D%5Ctimes%20%5Cfrac%7B26%7D%7B25%7D%5C%5C%3D4218.24)
As 1 pound = 100 pennies,
4218.24 pounds = 4218.24 × 100 = 421824 pennies
So,
Colin will have 421824 pennies after 2 years.
It is false that there is a <span>negative correlation between the number of years in college and earnings.</span>
Answer:
the answer for X is -6
Step-by-step explanation:
g(X)=5/2x -1 and g(X)= - 1
sub -16 on g(X)
-16=5/2x -1
-16+1 = 5/2x
-15 = 5/2x
divide both sides by 5/2
X= -6
Answer:
a) -36
b) y = -36x +34
Step-by-step explanation:
a) The slope is found using the derivative of the function.
f'(x) = dy/dx = 0 -9(2x) = -18x
Then at x=2, the slope is ...
f'(2) = -18·2 = -36
___
b) The point-slope form of the equation can be written as ...
y = -36(x -2) -38
Simplifying to slope-intercept form, we get ...
y = -36x +34
First let's get rid of the parenthesis:
12 - 4x + 3x = 4 + 10 + 2x
Now group the x's on the left and the numbers on the right
-4x + 3x - 2x = 4 + 10 - 12
...and simplify
-3x = 2
divide by -3 to isolate x
x = -2/3