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Anarel [89]
2 years ago
10

WILL GIVE BRAINLIEST AND 30 POINTS!!!!!!!!!!!

Mathematics
1 answer:
DerKrebs [107]2 years ago
4 0

Answer:

Step-by-step explanation:

1) x = 3.1212......

Multiply both side by 100

100x = 312.1212....

     <u>x =     3.1212.....</u>   {Now subtract}

   99x = 309

       x =309/99

        x = 103/33 = 3\frac{4}{33}  

Answer: option 1

2) π is a irrational.

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Stainless steels are frequently used in chemical plants to handle corrosive fluids, however, these steels are especially suscept
Ira Lisetskai [31]

Answer: 95% confidence interval would be (0.344,0.456).

Step-by-step explanation:

Since we have given that

n = 295

x = 118

so, \hat{p}=\dfrac{x}{n}=\dfrac{118}{295}=0.4

At 95% confidence, z = 1.96

So, margin of error would be

z\times \sqrt{\dfrac{p(1-p)}{n}}\\\\=1.96\times \sqrt{\dfrac{0.4\times 0.6}{295}}\\\\=0.056

so, 95% confidence interval would be

\hat{p}\pm \text{margin of error}\\\\=0.4\pm 0.056\\\\=(0.4-0.056,0.4+0.056)\\\\ =(0.344,0.456)

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6 0
4 years ago
Read 2 more answers
In a geometric sequence, a2 = 2, a3 = 20, &amp; a4 = 200.
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Answer:

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5 0
3 years ago
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3 years ago
Please If you can see if you can help on some of my questions!!!!
kvv77 [185]
PQ // BC 

then

Angle P = Angle B, A is common angle the two triangles are similar

AP/AB  = AQ/AC

8/18 = 12/ AC

AC = 12 * 18/8 = 27 (your ans: D)

AQ + QC = AC

QC = AC - AQ = 27 - 12 = 15 (if it was required) 

tan60 = y/8

y = s tan60 = 8sqrt(3)  (B)

Next time, post each question separately. 


6 0
3 years ago
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