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Radda [10]
2 years ago
12

The questions are in the photos, I know it's a lot but the question is worth 100 points. Please answer it,,,,

Mathematics
2 answers:
FromTheMoon [43]2 years ago
7 0

Soooooo sorry but I only understood part a and c.

sorry

densk [106]2 years ago
5 0

Answer:

im taking the 50 points

Step-by-step explanation:

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Listed below are the summary statistics from samples of strontium-90 in baby teeth obtained from twelve Pennsylvania residents a
qaws [65]

Answer:

9.72

Step-by-step explanation:

s1 = 10.6383 ; s2 = 5.21289

x1 = 147.583 ; x2 = 136.417

n1 = 12 ; n2 = 12

df1 = n1 - 1 = 12 - 1 = 11

df2 = n2 - 1 = 12 - 1 = 11

The test statistic :

(x1 - x2) / sqrt[(sp²/n1 + sp²/n2)]

Pooled variance = Sp² = (df1*s1² + df2*s2²) ÷ (n1 + n2 - 2)

Sp² = ((11*10.6383) + (11*5.21289)) / 22 = 7.926

Test statistic, T* :

(147.583 - 136.417) / √(7.926 * (1/12 + 1/12))

11.166 / √(7.926 * (1/6)

11.166 / √1.321

11.166 / 1.1493476

T* = 9.7150766

Test statistic = 9.72

5 0
3 years ago
11. A farmer has 18- acres for 50 cows. What is the amount of acreage per cow? ​
Bess [88]
0.36 of an acre per cow
8 0
2 years ago
Read 2 more answers
What the factor os 12​
Mariana [72]

Answer:

Factors of 12 =1, 2, 3, 4, 6, 12

Step-by-step explanation:

7 0
2 years ago
If AB=5 and BC =10 is it possible that AC=4
son4ous [18]
Yes depending on if ur talking about a triangle of not
8 0
2 years ago
9)Rover the dog is on a 60-foot leash. One end of the leash is tied to Rover, who is 2 feet tall. The
Sidana [21]

The dog can roam 59.7 feet if the dog is on a 60-foot leash. One end of the leash is tied to Rover, who is 2 feet tall.

<h3>What is the Pythagoras theorem?</h3>

The square of the hypotenuse in a right-angled triangle is equal to the sum of the squares of the other two sides.

We have:

Rover the dog is on a 60-foot leash. One end of the leash is tied to Rover, who is 2 feet tall. The other end of the leash is tied to the top of an 8-foot pole.

After drawing a right-angle triangle from the above information.

Applying Pythagoras' theorem:

60² = 6² + x²

After solving:

x = 59.69 ≈ 59.7 foot

Thus, the dog can roam 59.7 feet if the dog is on a 60-foot leash. One end of the leash is tied to Rover, who is 2 feet tall.

Learn more about Pythagoras' theorem here:

brainly.com/question/21511305

#SPJ1

5 0
1 year ago
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