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WARRIOR [948]
2 years ago
15

Can somebody help me with this question.

Mathematics
1 answer:
lianna [129]2 years ago
8 0
The lesser one is -4 and the greater x is 0.5
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John took a quiz there are 25 questions, I got a 76% how many did John get right and how many did he get wrong
FinnZ [79.3K]

Answer:

6 wrong.

Step-by-step explanation:

25 questions  76% 25*0.76=19 so he got 6 wrong.

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The answer 
<span>the third rope to counterbalance Sam and Charlie is F
and vectF +vectF1 +vectF2 =vect0
let's consider axis
y'y  </span>vectF = -F
      vectF 1= F1cos60
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3 years ago
Tell whether the angles are complementary or supplementary. Then find the value of x.
ivann1987 [24]

Answer:

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Step-by-step explanation:

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G two samples, one of size 14 and the second of size 13, are selected to test the difference between two population means. how m
vovikov84 [41]

Note :- If sample size n > 30 OR Population standard deviation σ is given then We use Z test.

If sample size n < 30 AND Population standard deviation σ is unknown then we use t test.

In this question we are not given Population standard deviations σ1 and σ2.

Also n1 = 14 and n2 = 13 both sample sizes are LESS than 30.

Therefore we use t test.

Given :- Assume the population standard deviations are equal. ( σ1 = σ2)

then Degrees of freedom = n1 + n2 - 2 = 14 + 13 - 2 = 25.

(kindly find the image attached with this solution)

Answer :- Therefore 25 degrees of freedom are used to find the t critical value.

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