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larisa [96]
3 years ago
9

Plz giving brainiest hurry fast plzz i beg

Mathematics
1 answer:
BigorU [14]3 years ago
4 0

Answer:

59

because 116 - 180 = 64 +57 =121 -180 =59 I hope this helps!

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Mrs. Blanda's truck holds 19.7 gallons of gas. She used 4 full tanks fo gas last month and paid $3 for each gallon. How much did
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Answer:

$236.40

Step-by-step explanation:

Mrs. Blanda's truck holds 19.7 gallons of gas. She used 4 full tanks of gas last month.

1 full tank  holds 19.7 gallons of gas

4 full tank hold 4*19.7 gallons of gas

4 full tank = 78.8 gallons of gas used last month

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A rectangle has a perimeter of 6 feet.
pickupchik [31]
The answer is “A” and C
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A researcher wishes to​ estimate, with 9090​% ​confidence, the proportion of adults who have​ high-speed Internet access. Her es
Sunny_sXe [5.5K]

Answer:  a) Required minimum sample size= 219

b) Required minimum sample size= 271

Step-by-step explanation:

As per given , we have

Margin of error : E= 5% =0.05

Critical z-value for 90% confidence interval : z_{\alpha/2}=1.645

a) Prior estimate of true proportion: p=28%=0.28

Formula to find the sample size :-

n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.28(1-0.28)(\dfrac{1.645}{0.05})^2\\\\=218.213856\approx219

Required minimum sample size= 219

b) If no estimate of true proportion is given , then we assume p= 0.5

Formula to find the sample size :-

n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.645}{0.05})^2\\\\=270.6025\approx271

Required minimum sample size= 271

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The diameter is a line that stretches across the middle of a circle from end to end.  The radius is one half of this line, stretching from the center of the circle to a point on the side of the circle.  This means that the diameter is 2 times the length of the radius.  2 times 2 is 4, meaning that the diameter is 4 inches.
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3 years ago
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