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skelet666 [1.2K]
3 years ago
13

James wants to know which brand of shoe will help him run faster. He thinks the more expensive shoe should be the one that helps

him run faster. He tries three different types of running shoes. He runs one lap on the track with one pair of shoes (shoe A) and times
how long it takes. He rests for 15 minutes. Then, he tries on another pair of shoes (shoe B) and runs a lap around the track, while timing how long it takes. He rests for 15 minutes before repeating the lap with the last brand of shoes (shoe C).

Which type of data did he collect?

a.)observational data
b.)qualitative data
c.)quantitative data
d.)experimental data
Biology
1 answer:
AlladinOne [14]3 years ago
3 0

Answer:

Quantitative date if you do a chart. But sometimes people do it in the way of experimental data. So I would say quantitative

Explanation:

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A roofer needs to get a stack of shingles onto a roof. Pulling the shingles up manually uses 1,549 n of force. The roofer decide
AURORKA [14]

Answer:

3.47

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Mechanical advantage is given by the ratio of output force by input force.

F_o = Output force = 1549\ \text{N}

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So,

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5 0
3 years ago
In a population of Mendel's garden peas, the frequency of the dominant A (yellow flower) allele is 80%. Let p represent the freq
DENIUS [597]

Answer:

If the frequency of the dominant allele in the pea population is 0.8, the genotype frequencies in the population would be 0.64 AA, 0.32 Aa, and 0.04 aa.

Explanation:

Hardy-Weinberg equation tells us that:

p2 + 2pq + q2

p2 is the frequency of AA plants

2pq is the frequency of Aa plants, and

q2 the frequency of aa individuals.

A allele in the population is 80%, the frequency is 0.8.

p represent the frequency of A allele. p is 0.8

Therefore calculating for q ( frequency of a allele).

p + q = 1.0

q = 1.0 − p

q = 1.0 − 0.8

q = 0.2

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Now we can calculate the predicted frequencies of the different genotypes, remembering that p2 is the frequency of the AA genotype, 2pq is the frequency of the Aa genotype, and q2 the frequency of aa genotype.

p2 = 0.8 x 0.8 = 0.64

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6 0
3 years ago
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