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olga55 [171]
2 years ago
9

-2,-5,-8,-11 41st term

Mathematics
2 answers:
frez [133]2 years ago
7 0

Answer:

-122

Step-by-step explanation:

The common difference is

-5-(-2)

-3

So

a+(n-1)d

-2+(41-1)-3

-2+(-120)

-122

Alina [70]2 years ago
7 0
-122 I believe is the answer I hope this helps
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For science experiment,Noel measured a piece of metal that has a mass of 3,500 grams.What is the mass of the metal in kilograms?
9966 [12]
3,500 g=3,500 g * (1 Kg / 1000 g)=3.5 Kg.

answer: 3,500 g=3.5 Kg
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3 years ago
Suppose N has a geometric distribution with parameter p. Derive a closed-form expression for E(N | N <= k), k = 1,2,... Check
vfiekz [6]

Answer:

P(X= k) = (1-p)^k-1.p

Step-by-step explanation:

Given that the number of trials is

N < = k, the geometric distribution gives the probability that there are k-1 trials that result in failure(F) before the success(S) at the kth trials.

Given p = success,

1 - p = failure

Hence the distribution is described as: Pr ( FFFF.....FS)

Pr(X= k) = (1-p)(1-p)(1-p)....(1-p)p

Pr((X=k) = (1 - p)^ (k-1) .p

Since N<=k

Pr (X =k) = p(1-p)^k-1, k= 1,2,...k

0, elsewhere

If the probability is defined for Y, the number of failure before a success

Pr (Y= k) = p(1-p)^y......k= 0,1,2,3

0, elsewhere.

Given p= 0.2, k= 3,

P(X= 3) =( 0.2) × (1 - 0.2)²

P(X=3) = 0.128

3 0
3 years ago
Question 1<br> If f(x) = (x-1), what is f(-4.2)?
lana66690 [7]

Answer:

-5.2

Step-by-step explanation:

4 0
3 years ago
How do you find the slope of a point
Hoochie [10]
A point doesn't have slope. Once you have TWO points, then the line between them has a slope. The slope is (how far the line rises from one point to the other) divided by (the level distance between them).
5 0
3 years ago
Read 2 more answers
ASAP I NEED HELP
alexdok [17]

The vertex of this parabola is at (3,-2). When the x-value is 4, the y-value is 3: (4,3) is a point on the parabola. Let's use the standard equation of a parabola in vertex form:

y-k = a(x-h)^2, where (h,k) is the vertex (here (3,-2)) and (x,y): (4,3) is another point on the parabola. Since (3,-2) is the lowest point of the parabola, and (4,3) is thus higher up, we know that the parabola opens up.

Substituting the given info into the equation y-k = a(x-h)^2, we get:

3-[-2] = a(4-3)^2, or 5 = a(1)^2. Thus, a = 5, and the equation of the parabola is

y+2 = 5(x-3)^2 The coefficient of the x^2 term is thus 5.

7 0
2 years ago
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