Q3) Explain the Error: When Rashed found the difference -11 - (-4), he got- 15. What might Tom have done wrong?

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Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36