Im p sure the degree is one
6 miles is the entire diameter, divide that by 2 to get your RADIUS.
Following are the playback times (in hours) for a sample of 20 MP3 players. 10 , 15, 21, 21, 23, 23, 24, 26, 27, 30, 30, 31, 37
kotykmax [81]
Answer:
The 65th percentile is 37
Step-by-step explanation:
The 65th percentile is the number that splits the data in two groups. The amount of data that is less to the 65th percentile corresponds to the 65% of the data. Since we have 20 value, we calculate the 65% of 20, which is 13. By organazing the data from least to greatest, we count the values in the data set until we reach the 13th value, which in this case is 37.
Answer:
<em>6 cm </em>
Step-by-step explanation:
<u><em>I don't know may I use the trigonometry functions, therefor I'm going to use Pythagorean theorem and property of 30°-60°-90° triangle.</em></u>
m∠ACB = 120° ⇒ m∠ACD = 60° ⇒ m∠DAC = 30°
DC is opposite to 30° angle ⇒ AC = CB = 8 cm
From ΔADC: AD² = 64 - 16 = 48 ; AD = 4√3 cm
ΔACB is isosceles ⇒ m∠CAB = m∠CBA = 30°
m∠DAH = m∠DAC + m∠CBA = 2(30°) = 60° ⇒ m∠ADH = 30° ⇒ AH = 4√3 ÷ 2 = 2√3 cm
From ΔADH: <em>DH</em> =
= √36 = <em>6 cm</em>
First the equation is 3+4, which equals 7