Given: Circle centre O, with PQ perpendicular to RS. Straight line GOF is perpendicular to PQ. RS is equal to 80 units, PQ = 60 units and the radius of the
circle is 50 units.
Calculate the distance FG between the chords PQ
and RS.​

You are a member of the jury for a murder case. the prosecution has presented dna evidence linking the defendant to the crime scene. the defense claims that dna evidence using str analysis with 13 markers is not sufficient to reliably distinguish between people. what do you think? a. the defense is right. str analysis with 13 markers gives a 1 in 1 million chance of two people having the same pattern, leaving a reasonable doubt. b. str analysis is not sufficient. the defendant's entire genome should be sequenced. the prosecution will have to consult a genomic library to make sure their dna evidence is valid. c. the prosecution is right. str analysis with 13 markers gives a 1 in 10 billion or greater chance that two people will have the same pattern. this person was at the crime scene. d. dna evidence is not generally accepted by legal experts.

Emma lives on a tight budget. she saves money and also makes intelligent choices when spending it. which statements describe emma's financial skills? select three options. emma is more prepared to meet her basic needs. emma is better prepared to avoid financial setbacks. emma is better able to avoid accumulating assets. emma is more prepared to face emergencies. emma is better able to avoid financial decision-making.

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling