Answer:
4
Step-by-step explanation:
The form ax²+bx+c=d to find the number to add you do
(b/2)² so
(4/2)²=
4
Answer: - n/35+n/45=2.5 or just 49.22
Step-by-step explanation:
use the formulas t total=t1+t2 and V=n/t
n=distance, V=speed, and t=time
35=n/t1, and t1=n/35
her train ride follows the same path at 45mph
45=n/t2, and t2=n/45, so then you get - n/35+n/45=2.5
Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great rest of Black History Month! :-)
- Cutiepatutie ☺❀❤
15 Answer: S₁ = 1 S₂ = 4 S₃ = 13 S₄ = 40 Sum = NO
<u>Step-by-step explanation:</u>
1 + 3 + 9 + 27 + ... 
16 Answer:
<u>Step-by-step explanation:</u>


Use tI 84 calculator .
go to y= and then plug the equation in the side then you will find the answer
3x +3 + x = -1
4x= -4
X= -1