Answer:
(1) 0.016597
(2) 0.040978
(3) 0.080277
(4) 0.341909
Step-by-step explanation:
1) probability of one or more catastrophes in the next: two missions =1-P(no catastrophes)=1-(119/120)2 =0.016597
2) probability of one or more catastrophes in the next five missions =1-(119/120)5 =0.040978
3) probability of one or more catastrophes in the next ten missions =1-(119/120)10 =0.080277
4) probability of one or more catastrophes in the next fifty missions =1-(119/120)50 =0.341909
Answer:
1/12
Step-by-step explanation:
1/4 - (-1/6)
1/4 + 1/6 = 3/12 - 2/12 = 1/12
Hope this helped :D
Answer:
.
See the diagram attached below.
Let the chords be AB and AC with common point A.
AD is the diameter. Join B with D and C with D to form two triangles.
We need to prove that AB=AC.
\begin{gathered}In\ \triangle ABD\ and \triangle ACD;\\Given\ that\ \angle BAD=\angle CAD----(condition\ 1)\\since\ AD\ is\ diameter, \angle ABD=\angle ACD = 90^0\\So\ \angle ADB=\angle ADC--------(condition\ 2)\\AD=AD\ (common\ side)-----(condition\ 3)\\ \\So\ the\ triangles\ are\ congruent\ by\ ASA\ rule.\\Hence\ AB=AC.\end{gathered}
In △ABD and△ACD;
Given that ∠BAD=∠CAD−−−−(condition 1)
since AD is diameter,∠ABD=∠ACD=90
0
So ∠ADB=∠ADC−−−−−−−−(condition 2)
AD=AD (common side)−−−−−(condition 3)
So the triangles are congruent by ASA rule.
Hence AB=AC.
16 because two negatives numbers equal a possitive so 16
Answer:
Students
Step-by-step explanation:
Teachers: 13/20= 0.65 = 65%
Students: 37/50= 0.74 = 74%
74% > 65%
Students are more in favor of the new club than teachers
