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sukhopar [10]
3 years ago
14

G 1 What is the solution to the equation 4 8=+ O x=-5 X= 2 X=-4 0 x=4 O x=5 Mark this and retur Save and Exit Next ere to search

PLSS HELP ME ASAPP​
Mathematics
1 answer:
tino4ka555 [31]3 years ago
5 0
Sorry i needed points
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(CO 4) In a sample of 15 stuffed animals, you find that they weigh an average of 8.56 ounces with a standard deviation of 0.09 o
Masja [62]

Answer:

92% Confidence Interval = [8.515, 8.605]

Step-by-step explanation:

The number of samples given is 15,this less than 30, hence, we use the t score confidence Interval

= Mean ± t score × Standard deviation/√n

Mean = 8.56 ounces

Standard deviation = 0.09 ounces

n = 15

We find the degrees of freedom = n - 1

= 15 - 1 = 14

Using the T score table

T score for 92% confidence interval with degrees of freedom 14

= 1.8875

Hence:

Confidence Interval =

= 8.56 ± 1.8875 × 0.09/√15

= 8.56 ± 0.0454010035

Confidence Interval

8.56 - 0.0454010035

= 8.5145989965

≈ 8.515

8.56 + 0.0454010035

= 8.6054010035

≈ 8.605

92% Confidence Interval = [8.515, 8.605]

7 0
2 years ago
At the store, you buy a backpack for $30.42, a binder for $9.89 and a combination lock for $5.75. If you give the cashier $50.00
Shkiper50 [21]

Answer:

$3.94

Step-by-step explanation:

$30.42 + $9.89 + $5.75 = £46.06

$50.00 - $46.06 = $3.94

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3 years ago
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Answer:

m - 7 = -13 + m

Step-by-step explanation:

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What value of c makes x^2+6+c a perfect square trinomial ?
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According to this, then:

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6 = 2*sqrt(c)

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Hope this helps!

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3 years ago
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