7, 5, 3, 1 is an arithmetic sequence with common difference (d) = -2 and first term (a) = 7.
Tn = a + (n -1)d
T50 = 7 + (50 - 1) x -2 = 7 + 49 x -2 = 7 - 98 = -91
50th term = -91
Answer:
11.7
Step-by-step explanation:
Multiply them. 3 x 3.9=11.7
Hope I helped!
Answer:
20
Step-by-step explanation:
80% of 25 is 20, even if you put it into a calculator
Step-by-step explanation:
If the triangle is right, we can use Pitagora
We can have 2 results
1.

2.

Answer:
62.4166666667 is the answer