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Luda [366]
3 years ago
9

Can anyone help please

Mathematics
1 answer:
Semenov [28]3 years ago
8 0
The answer is b x Increases 6 y decreases 3
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You and your friend are painting the walls in your apartment. You estimate
Novay_Z [31]

Answer:

Honestly I dont know man, Im pretty sure you already  found thee answer already since this was in April

Step-by-step explanation:

3 0
3 years ago
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
A : 98<br> B : 31.1<br> C : 14 <br> D : 9.9<br><br><br> Please help :(
irina [24]

Hope you could understand.

If you have any query, feel free to ask.

4 0
2 years ago
At first public inquiry showed there were 637000 women motorcyclists in the US up from 437000 just 8 years ago before it. Find t
dimaraw [331]
I would say to do 637000-437000, which is 200000, and then do 200000/637000. You get 0.314, and the percentage of that in hundreds is 31%. 
6 0
3 years ago
Simplify by dividing (3/5) divided by -4/9
Anton [14]

\bf \cfrac{3}{5}\div \cfrac{-4}{9}\implies \cfrac{3}{5}\cdot \cfrac{9}{-4}\implies \cfrac{27}{-20}\implies -1\frac{7}{20}

8 0
3 years ago
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