Answer:
n=5/3
Step-by-step explanation:
simplified it would be 5/3
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BRAINLIEST AND 5 STARS TO CORRECT ANSWER
1 answer:
The first and third selections are infinite sums. The given sum is finite, so those choices are incorrect.
The second choice fails to give the correct value for n=0. (It gives 0, not -3.)
Thus, all choices are eliminated except the last one. It gives the summation of the correct terms for the correct number of terms.
The 4th selection is correct:
The second choice fails to give the correct value for n=0. (It gives 0, not -3.)
Thus, all choices are eliminated except the last one. It gives the summation of the correct terms for the correct number of terms.
The 4th selection is correct:
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Answer:
Step-by-step explanation:
a)
b)
Rationnel roots are divisor of -2: -1,1,-2,2
c) see picture
The solutions are and
Explanation:
Part a: The equation is
Let us find the value of x.
Multiply the terms within the bracket, we get,
Subtracting both sides by , we have,
Adding both sides by 3,
Thus, the solution of the equation is
Part b: The equation is
Multiply the terms within the bracket, we get,
Subtracting both sides by 9x, we have,
Subtracting both sides by 17,
Dividing both sides by 3, we have,
Thus, the solution of the equation is
Part c: The equation is
Multiply the terms within the bracket, we get,
Adding the like terms, we have,
Subtracting both sides by 2 and 2x, we get,
Dividing both sides by 5, we have,
Thus, the solution of the equation is