Distance between C and D =sr( (-7 - -10)^2 + (6 - 2)^2) = sr(3^2 + 4^2) = sr(9 + 16) = sr(25) = 5 units
The correct answer is letter A
Answer:
672 meters
Step-by-step explanation:
56 times 12 = 672
(1) This series consists of terms of an arithmetic sequence:
179 - 173 = 6
173 - 167 = 6
and so on, so that the <em>n</em>-th term in the series is (for <em>n</em> ≥ 1)
<em>a(n)</em> = 179 - 6 (<em>n</em> - 1) = 185 - 6<em>n</em>
Then the sum of the first 53 terms is
(2) This series has terms from a geometric sequence:
-12 / 6 = -2
24/(-12) = -2
-48/24 = -2
and so on. The <em>n</em>-th term is (again, for <em>n</em> ≥ 1)
<em>a(n)</em> = 6 (-2)ⁿ⁻¹
and the sum of the first 19 terms is
Multiply both sides by -2 :
Subtracting this from the first sum gives
and solving for the sum, you get
Answer:
The percentage of employees with 8 or more years at the company that reported that email is their preferred method of communication is 30.48%. I suppose there was a small typing mistake in option B.
Step-by-step explanation:
The proportion is the number of desired outcomes divided by the number of total outcomes.
The percentage is the proportion multiplied by 100.
In this question:
210 employees with 8 of more year.
Of those, 64 have the email as their preferred method of communication.
64/210 = 0.3048
0.3048*100 = 30.48%
The percentage of employees with 8 or more years at the company that reported that email is their preferred method of communication is 30.48%. I suppose there was a small typing mistake in option B.