Answer:
nth term = 7n - 2
Step-by-step explanation:
a = first term = 5
d = common difference = second term - first term
= 12 - 5 =7
d = 7
a + (n-1)d
= 5 + (n -1)7
= 5 + 7n - 7 {add like terms}
= 7n - 2
<u>Given</u>:
Given that the graph OACE.
The coordinates of the vertices OACE are O(0,0), A(2m, 2n), C(2p, 2r) and E(2t, 0)
We need to determine the midpoint of EC.
<u>Midpoint of EC:</u>
The midpoint of EC can be determined using the formula,

Substituting the coordinates E(2t,0) and C(2p, 2r), we get;

Simplifying, we get;

Dividing, we get;

Thus, the midpoint of EC is (t + p, r)
Hence, Option A is the correct answer.
Answer:
X<5
Step-by-step explanation:
Divide by 2
Answer:
Step-by-step explanation:
(I'm assuming your son hasn't learned Pythagorean theorem so I'm going to avoid using that)
10. Works because that's a rectangle or a parallelogram
11. 5,5,6,14 is possible with a weird Trapezoid
12. Works, that's a square, or a parallelogram
13. 4,3,5,14 is not possible in anyway
(Also, this math is weird, i understand how its new for you, im a tutor and struggled with this, this is what i came up with though, hope it helps)
-- Gage Millar, Algebra 2 Tutor