Answer: choice C
Step-by-step explanation:
an=a1+d*(n-1)
so
an=9+(n-1)*(-3)
you can check the answer by plugging in the numbers, for example if n=1, an=9, if n=2 an=6 which is correct.
Answer:
B
Step-by-step explanation:
You can knock out A, because this isn't talking about temperature, and C and D are proven untrue by the data. The only one left is B, which if you check, is also consistant with the data.
(14-6)÷(6-2)___ 4×(10-8)-2×2
8 4 2
8÷4 __ 4×2-2×2
0
2 < 8
Cd can interlock with the quadrilateral
Answer:
No, it is D.
Step-by-step explanation:
<em>It can not be A or C, because length can not be negative</em>
Because the y is the same, you only have to <em>count the distance of the x-axises</em>.
4 - (-3) is 7 units, which is D.