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Katie S.

College Sophomore with Experience Tutoring Science and More!

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Basic Math

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Question:

What is the quadratic formula, and how can it be used?

Katie S.

Answer:

The quadratic formula can be used to find the x-intercepts of a complicated equation. The formula is x = (-b +/- root(b^2 - 4ac)) / (2a). a, b, and c represent the coefficients of any equation with the format ax^2 + bx + c = 0.

Chemistry

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Question:

What is the difference between fusion and fission?

Katie S.

Answer:

Fusion is the nuclear process in which nuclei are fused together. In other words, smaller particles are combined to form bigger particles. Fission is the nuclear process in which a nucleus breaks apart. In other words, a big particle is broken into small pieces.

Biology

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Question:

What do the variables in the Hardy Weinberg Equilibrium equation, p^2 + 2pq + q^2 = 1, represent?

Katie S.

Answer:

p^2 represents the frequency of the genotype AA in a population, or the homozygous dominant (dominant-dominant) genotype. 2pq represents the frequency of the genotype Aa in a population, or the heterozygous (dominant-recessive) genotype. q^2 represents the frequency of the genotype aa in a population, or the homozygous recessive (recessive-recessive) genotype. Alone, p and q represent the allele frequencies. p represents the dominant allele (A) frequency, and q represents the recessive allele (a) frequency. If these allele frequencies for a population are substituted into the Hardy-Weinberg Equilibrium equation and the answer equals 1, then that means that the population is in fact in equilibrium.

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