Hi there
If the same amount of interest is earned in both so we should create the equation according to that
0.05x=0.075 (10000-x)
Solve for x
0.05x=0.075×10000-0.075x
0.05x=750-0.075x
0.05x+0.075x=750
0.125x=750
X=750÷0.125
X=6000 invested at 5%
10000-6000=4000 invested at 7.5%
Check your answer
0.05×6000=0.075×4000
300=300
Good luck!
Answer:
A. 2x-4
Step-by-step explanation:
Let his brother's age be .
Derrick is 4 years younger than twice his brother's age. Which means derrick is 4 years younger than .
Which makes derricks age since he is 4 years younger
Answer:
Step-by-step explanation:
Start replacing!
Now two complex numbers are equal if both the real and imaginary parts are equal, which gives you the system of equation
Pick any method to solve it and you'll get
Given the following function:
Use the form a·cot(bx - c) to find the variables used to find the amplitude, period, phase shift and vertical shift.
We get,
a = 1
b = 1
c = -π/6
d = 0
Since the graph of the Cotangent function does not have a maximum or minimum value, there can be no value for the amplitude.
Amplitude: None
For the Period:
Therefore, the Period is π.
For the Phase Shift:
Therefore, Phase Shift is -π/6 → π/6 (To the left).
For the Vertical Shift:
Vertical Shift = 0
Plotting the function will be: