Given that among the 100 students, 10 are left-handed, the probability of picking a left-handed out of the class is approximately equal to 10/100 or 10%. If two are selected at random, the possibilities are that: (1) two are left-handed, (1) one is left-handed and the other is not, (3) none of them is left-handed.
Answer:
22.9 yards
Step-by-step explanation:
Since b² = a² - c² where a = vertex of major axis, 2a = 50 yards the length of the major axis. So , a = 50/2 = 25 yards. c = focus of chamber = 10 yards from center and b = vertex of minor axis.
So, b = ±√(a² - c²)
= ±√(25² - 10²)
= ±√(625 - 100)
= ±√525
= ±22.91 yards
≅ ± 22.9 yards
Since b = length of minor axis from center of chamber = 22.91 yards. So, he should build the whisper chamber 22.9 yards out from the center of the chamber.
Answer:
Step-by-step explanation:
0 + 10 + 6 + 3 + 10 + 10 =
10 + 9 + 20 = $30
Answer:
(4+7i)(4-7i).
This is because you FOIL it to get:
16 + 28i - 28i -49i^2.
That equals to 16 - 49i^2, which equals to:
16 + 49
65, which is a real number.
