As you must be knowing, the formula for x successes in n trials in a binomial distribution where p is the probability of a success in a single trial & q = 1 - p is the probability of failure in a single trial is
<span>P(x) = nCx*p^x*q^n-x </span>
<span>For this problem, what you have to do is to find </span>
<span>x*P(x) for all values of x from 0 to 15, using </span>
<span>p = 0.3 & q = 4/5 , i.e </span>
<span>0*P(0) + 1*P(1)+...15*P(15) = </span>
<span>0*15C0*(0.3)^0*(4/5)^15 + 1*15C1*(0.3)^1*(4/5)^14 +.... </span>
<span>15*15C15*(o.3)^15*(4/5)^0 </span>
Answer:
Step-by-step explanation:
You would put b at -3 (put a dot there)
Move with m by going up 1, and then to the right 4 (the next dot should be at --2, 4)
connect both points with a straight line
Answer:
x = 12.52°
Step-by-step explanation:
The illustration forms a right angle triangle . The right angle triangle formed has a height of 200 ft and a base of 900 ft.
The opposite side of the triangle is 200 ft while the adjacent side of the triangle is 900 ft.
Using tangential ratio we can find the angle of depression. Therefore,
Let
x = angle of depression
tan x = opposite/adjacent
opposite = 200 ft
adjacent = 900 ft
tan x = 200/900
tan x = 2/9
x = tan⁻¹ 2/9
x = tan⁻¹ 0.222
x = 12.5166739144
x = 12.52°
Answer:
5/8
Step-by-step explanation:
multiply by the reciprocal and follow the steps i provided
5
8
of an orange and gave the other
3
8
to her brother. Which equation can be used to find the difference between the amount Anna ate and the amount she gave her brother?
A.
5
8
−
3
8
=
2
0
B.
5
8
−
3
8
=
2
8
C.
5
8
+
3
8
=
8
8
D.
5
8
+
3
8
=
8
16