Find the geometric means in the following sequence. 47, ? , ? , ? , ? , - 789, 929 r select one: a. -6,580, -9,870, -13,160, -16,450 b. 329, 2,303, 16,121, 112,847 c. 2,303, -16,121, 112,847, -789,944 d. -329, 2,303, -16,121, 112,847
The explicit form of a geometric sequence is where is the first term while is the common ratio.
We are given the first term .
We are given the sixth term .
If we divide 6th term by 1st term this is the result:
Simplify both sides:
Take the fifth root of both sides:
The common ratio is -7.
So all we have to do is start with the first term and keep multiplying by -7 to get the other terms.
The terms -329,2303,-16121,112847 are what we are looking for in our choices.
That's the last choice.
Answer from: Quest
b: |12 – x| ≤ 0.25
step-by-step explanation:
let x be the possible lengths in inches, of the ribbons jaime cut.
we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.
we can represent this information in an inequality as:
by the definition of absolute value function we will get,
upon combining our inequalities we will get,
therefore, the inequality describes all the possible lengths (x), in inches, of the ribbons jaime cut.
step-by-step explanation:
Answer from: Quest
25% is the answer
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