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CBSE Class 7 Answered

By what number should 2 raised to -3 be miltiplied so that the product is 16?
Asked by jvilas100684 | 03 Sep, 2018, 01:12: AM
answered-by-expert Expert Answer
begin mathsize 16px style By space what space number space should space 2 space raised space to space minus 3 space be space miltiplied space so space that space the space product space is space 16 ? Let space straight a space be space the space required space number. 2 to the power of negative 3 end exponent space cross times space straight a space equals space 16 rightwards double arrow straight a space equals space 16 over 2 to the power of negative 3 end exponent space equals space 16 space divided by space 2 to the power of negative 3 end exponent space equals space 16 space divided by 1 over 2 cubed space equals space 16 space cross times space 2 cubed space space equals space 128 end style
Answered by Yasmeen Khan | 03 Sep, 2018, 11:36: AM

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