Answer:
-136
Step-by-step explanation:
This series can be written as: (14 - 3*0) + (14 - 3*1) +...+ (14 - 3*n)
The sum of the first 16 terms is:
14*16 <u>- 0 - 3 - 6 - 9 -...</u> = 224 - 360 = -136
This underlined bit can be calculated in many ways, I personally used my calculator, but there are formulas to do so.
Answer: A, C, E
Step-by-step explanation:
Ignore the square root for now. 75/15 can be simplified into 25/5 (by dividing both by 3).
25/5 can be simplified into 5 (by dividing both by 5). 75/15 can also be simplified into 15/3 (by dividing both sides by 5). Now put the square roots back onto the simplified answers.
4x-2y=8
x-3y=-3
Multiply equation 2 by 4;
4x-2y=8
4x-12y=-12
Subtracting equation II from equation I;
10y=20
y=2
Replacing the value of y in equation;
4x-2y=8
4x-2(2)=8
4x-4=8
4x=12
x=3
Answer:
yes this is maybe?
Step-by-step explanation:
I had a feeling it wast maybe but maybe its are?
