A. Determine whether each sequence is geometric or not. If it is a geometric sequence, find the common ratio. 10, 100, 1000, 10 000 b. 10, -1, 1 , −1
10 100

b. Find the common ratio in the geometric sequence 4, 2, 1, Give a formula for the nth term of the sequence.

c. Determine if the sequence 4, 8, 16, 20 is geometric.

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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"a" determine whether sage found the correct quotient. show your work

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c