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Ket [755]
2 years ago
15

Find the perimeter.

Mathematics
1 answer:
Burka [1]2 years ago
6 0

Answer:

5 11/13 km

Step-by-step explanation:

4 ( 1 6/13)

4× 19/13

= 5 11/13

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Trials in an experiment with a polygraph include 98 results that include 24 cases of wrong results and 74 cases of correct resul
Zina [86]
<span>Answer: Let P be the proportion of correct results of all polygraph results H0: P ≥ 0.80 Ha: P < 0.80 Estimated p = 74 / 98 = 0.7551 Variance of proportion = p*(1-p)/n = 0.8(0.2)/98 =0.0016327 S.D. of p is sqrt[0.001633] = 0.0404 z = ( 0.7551 - 0.8 ) / 0.0404 = -1.1112 P-value = P( z < -1.1112) = 0.1335 Since the p-value is greater than 0.05, we do not reject the null hypothesis. Based on the results there is no evidence that polygraph test results should be prohibited as evidence in trials.</span>
5 0
3 years ago
Work out 6z - 4z .what is the answer?
Reika [66]

Answer:

4 is the answer

Step-by-step explanation:

you can - or + the equation only then when the letter is same z and z both are same so you can - them and get the answer.

4 0
1 year ago
a grocery store is selling ground beef for $1.89 a pound. how much does it cost to buy 2.5 pounds of ground beef? please help my
I am Lyosha [343]
$1.89 X 2.5 pounds = $4.725
5 0
3 years ago
Anyone know how to simplify a whole number into a mixed number or a improper fraction???
AlekseyPX

Answer:

Example any whole number over one would be an improper fraction, so 2=2/1, something like 5/3=1 2/3 would be a mixed number, subtract the numerator by the denominator, how ever many times you can subtract is the whole number and the amount remaining is the numerator, keep the same denominator,,, hope that makes sense

Step-by-step explanation:

3 0
3 years ago
Find the value of x of the circle, and show the work of the equation:
slavikrds [6]
AOD=180 so COD=48
Since point C and D are equidistance to center point(O) OD and OC are congruent.
That also means OCD=ODC.
180-48=OCD+ODC
ODC=OCD
x= 66
8 0
3 years ago
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