Answer:
6.7
Step-by-step explanation:
(3,2) (0, -4)
√(x2 - x1)² + (y2 - y1)²
√(0 - 3)² + (-4 - 2)²
√(-3)² + (-6)²
√(9) + (36)
√45
6.7
1. 34.5
2. 111
3. 69
4. 34.5
(mind you I took geometry a year ago and hated it but hopefully these are right?)
Answer:
11 13 15 17 19
Step-by-step explanation:
We will solve this word problem using 2k+1 which is one of the general forms of an odd integer.
Let 2k+1 be the first odd integer.
(2k+1) + (2k+3) + (2k +5) = (2k+7) + (2k +9) + 3 (the +3 is to accommodate for the left side being 3 more than the right)
Solve for k
6k + 9 = 4k + 19
6k - 4k + 9 = 4k-4k + 19
2k + 9 = 19
2k + 9 - 9 = 19 - 9
2k = 10
2k/2 = 10/2
k = 5
To get the first digit in the series plug in 5 for k
2k+1
2(5) + 1
10 + 1 = 11
So our series is 11, 13, 15, 17, 19
Let's test it.
11 + 13 +15 = 39
17 + 19 = 36
So we are correct, the first 3 integers are 3 more that the sum of the last 2.
