Answer:
For an nth term U(n) = a + ( n - 1)d
n = number of terms
a = first term
d = common difference
a = -9
d = -3--9 = -3+9 = 6
U(n) = -9 + (n - 1)6
That's option A.
Hope this helps.
Answer:
Step-by-step explanation:
there are 6 sides on a cube
surface area = 6 times the area of one face of the cube
= 6 times ( a side times another side) note all sides are equal
= 6(side)² is a side equal to 2/3 ?? if it is ....
= 6(2/3)²
= 6(2/3)(2/3) one of the 3s divide into 6 twice
= 2(2)(2/3)
= 2³ / 3
= 2x2x2 / 3
= 8 /3
= 2 and 2/3 units²
135 miles / 2.5 hours = 54 mph
54 mph x 4 hours = 216 miles
Answer:
b
Step-by-step explanation: