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Doss [256]
2 years ago
7

Which estimation technique will yield a solution that is closest to the actual product of  (–21.06)(–30.45) A.front-end estimati

on
B.rounding to the nearest tenth
C.rounding to the nearest whole number
D.compatible numbers
Mathematics
2 answers:
MrMuchimi2 years ago
4 0
B rounding to the nerest tenth
Tasya [4]2 years ago
4 0

Answer:

B) rounding to the nearest tenth

did test and it was right


Step-by-step explanation:


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The ratio of Melanie's allowance to Jacob's allowance is 4.1 to 20.5. If Jacob gets $5.00, how much allowance does Melanie get?
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8 0
2 years ago
A plant can either have a smooth seed (p) or a rough seed (q). Rough seeds are recessive and smooth seeds are dominant. In a pop
adell [148]
To calculate this, the Hardy-Weinberg principle can be used:

p² + 2pq + q² = 1 and p + q = 1

where p and q are the frequencies of the alleles (p - dominant, q - recessive), and p², q² and 2pq are the frequencies of the genotypes.

a) Since 32 plants have rough seed (recessive genotype: q²) out of 100 plants in total, then 

q² = 32/100 = 0.32


b) q = √q² = √0.32 = 0.56


c) Since p + q = 1, then

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d) 19 plants with rough seeds (recessive genotype: q²) in a population of 100 means that q² = 19/100 = 0.19

We need to calculate p (the allele frequency for smooth seeds).
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q = √q² = √0.19 = 0.44

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3 0
2 years ago
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