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Dvinal [7]
3 years ago
7

Need help anyone help plz im struggling

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
4 0

Answer:

Step-by-step explanation:

1

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If 45% of a number, n, is 225, what is 74% of n?<br><br> A. 185<br> B. 298<br> C. 370<br> D. 406
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C

Step-by-step explanation:

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3 years ago
Industry standards suggest that 8 percent of new vehicles require warranty service within the first year. Jones Nissan in Sumter
jenyasd209 [6]

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Step-by-step explanation:

Let X be the no of vehicles that require warranty service within I year out of vehicles sold (9) yesterday.

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Hence X is binomial with p=8% = 0.08

So P(X=x) = 9Cx (0.08)^x (1-0.08)^{9-x} ,x=0,1,2...9

a) P(X=0) = 0.472161\\b) P(x=1) = 0.3695

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d) Mean = Mean of binomial = np =

9(0.08) = 0.72

Var (x) = npq = 0.6624

Std dev = square root of variance = 0.8139

5 0
3 years ago
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What is the value of 6x squared+ 4x + 8 when x=7? Please answer this I really need help!
stealth61 [152]
Let’s write it simply, that helps us solve it easier.
6x^2+4x+8
Now, insert 7 in place of x.
6(7)^2+4(7)+8
Now, multiply.
42^2+28+8
Solve for exponents.
1,764+28+8
Add.
1,792+8
1,800
Hope this helps!
3 0
3 years ago
What number is 1/8 of 1000
Dmitry_Shevchenko [17]
125    125x8=1000    1/8 of 1000 is 125


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2 years ago
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