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3 years ago

What is 20 + 10? (Nobody answer this)

2 answers:

6 0

1 way to solve this is:
Remove the zeros and add normally. Then add 1 zero next to the answer.
Another way:
Add 20+10.

Answer: 30

GaryK [48]3 years ago

3 0

30. 30 is the answer to this question.

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When circuit boards used in the manufacture of compact disc players are tested, the long-run percentage of defectives is 5%. Let

kupik [55]

Answer:

(a) 0.873 (b) 0.007 (c) 0.715 (d) 0.277 (e) 1.25 and 1.09

Step-by-step explanation:

The probability that the random variable X takes the value x is given by P(X=x) = $25Cx 0.05^x0.95^{25-x}$ . Then,

(a) $P(X\leq) = (25C0)(0.05^0)(0.95^{25}) + (25C1)(0.05^1)(0.95^{24}) + (25C2)(0.05^2)(0.95^{23})= 0.873$

(b) $P(X\geq5) = 1-P(X\leq4) = 1 - (0.873 + (25C3)(0.05^3)(0.95^{22}) + (25C4)(0.05^4)(0.95^{21})) = 1 - (0.873 + 0.12) = 0.007$

(c) $P(1\leqX\leq4) = (25C1)(0.05^1)(0.95^{24}) + (25C2)(0.05^2)(0.95^{23}) + (25C3)(0.05^3)(0.95^{22}) + (25C4)(0.05^4)(0.95^{21}) = 0.715$

(d) $P(X=0) = (25C0)(0.05^0)(0.95^{25}) = 0.277$

(e) E(X) = np = (25)(0.05) = 1.25 and $Sd(X) = \sqrt{Var(X)} = \sqrt{np(1-p)} = 1.09$

8 0

3 years ago

What is the equation if – 4y = 8x + 16 is solved for y<br> help assignment is due in 20 min

Marysya12 [62]

Answer:

Slope=4.000/2.000=2.000

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

What is the perimeter of a square with a side measurement of 6 in

Ymorist [56]

24 inches, because if you were to multiply six, by four, since four is the number of sides a square has, it would be 24

8 0

4 years ago

Divide 4.16 into the ratio 3:5<br><br> need answers fast!!!

Over [174]

3:5 =3/5 3/5=4.16/x using cross multiplication, 5(4.15)=3(x) 20.8=3x x=108/15 thus, 4.16÷104/15 =3/5

4 0

4 years ago

Two points have the coordinates (2,3) and (7,9).

antoniya [11.8K]

Answer:

x¹y¹=2,3

x²y²=7,9

ans

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7 0

3 years ago