56.7 should be the right answer
Step-by-step explanation:
12. n^2+2n
if you insert 1 for k and then work up by inserting 2 for k and adding those together and stoping at n.
13. 8-2(2^n)
if you insert 3 for k and then work up by inserting 4 for k and adding those together and keep on going but stopping at n.
Hope that helps :)
Answer:
x=3.4 y=-5.8 (the steps are in order and I explained to the best of my ability)
Step-by-step explanation:
x+3y=-14 substitute the x for -14-3y in the second problem
x=-14-3y 2(-14-3y)-4y=30
-28-6y-4y=30
-10y=58
y=-5.8
substitute the y in the first equation for -5.8
x+3(-5.8)=-14
x-17.4=-14
x=3.4
<span>Y= -10x - 15 written in slope-intercept form
The SI formula is: y = mx = b.
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