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sesenic [268]
2 years ago
11

You ask 40 students which of three items from the cafeteria they like the best. You record the results on the piece of paper sho

wn.
Result of a survey on a paper. First line. What is your favorite cafeteria food? Second line. Pizza: 30 percent. Third line. Pasta: 18 students. Fourth line. Salad: 10 students.

What percent of students answered salad?
% of students answered salad
Mathematics
1 answer:
ivann1987 [24]2 years ago
5 0

Answer:

42%

Step-by-step explanation:

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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
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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

p = 1 - q = 1 - 0.56 = 0.44


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).
We can find q because we know q²:

q = √q² = √0.19 = 0.44

Since p + q = 1, then

p = 1 - q = 1 - 0.4 = 0.56

3 0
2 years ago
Simplify sin θ / square root 1 - sin^2 θ
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Recall that

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or if it's negative,

\dfrac{\sin\theta}{\sqrt{1-\sin^2\theta}}=\dfrac{\sin\theta}{-\cos\theta}=-\tan\theta

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Answer:

Option b: a decision analysis

Step-by-step explanation:

Option b: a decision analysis

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An approach like a diagrammatic representation of available resources, choices are mentioned on influence to easily draw the decision.

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They are 5.8 units apart
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true of false. if the movement of a mass on a spring may be modeled with simple harmonic motion, then its frequency decreases wi
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The statement “If the movement of a mass on a spring may be modeled with simple harmonic motion, then its frequency decreases with time” is false.

 

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