We have to evaluate the summation of (3n+2), with n ranging from 1 to 14. Let's write all the terms of the sum for each value of n:
n=1:
n=2:
n=3:
n=4:
n=5:
n=6:
n=7:
n=8:
n=9:
n=10:
n=11:
n=12:
n=13:
n=14:
Now, let's sum all the terms together, and we get:
Answer:
B
Step-by-step explanation:
The equation of a circle is
(x-h)^2 + (y-k)^2 = r^2
h= 9, k = -7
r = 2, so r^2 = 4.
We now know that the equation must equal 4, so we can rule out answers A and C.
Plug in the values for h and k to get
(x-9)^2 + (y+7)^2 = 4
Choice B is correct!
Answer:
a) $1250 b) $6250
Step-by-step explanation:
1. I = PRT
2. Sub in what you know into the equation.
I = $5000 x 0.025 x 10
3. Put this into a calculator and you get $1250. This is the simple interest earned.
4. For B, simply add $1250 to $5000 to get $6250. This is how much Jamals investment will be worth at the end of the term.
Since sin(2x)=2sinx cosx
2sin(2x)=
4sinxcosx=cosx
Answer:
number 4
Step-by-step explanation: