anonymous one year ago What is the value of the expression 7 of the power –3? –21 -1/343 1/343 343

1. anonymous

First one since I'm guessing the question was 7 x -3

2. anonymous

oo editted ok =1/7^3 =1/343

3. Jamierox4ev3r

think of $$7^{3}$$ then think of $$7^{-1}$$ $$\large 7^{3}=343$$ $$\large 7^{-1}=\frac{1}{7}$$

4. Jamierox4ev3r

a negative exponent switches the numerator and the denominator For example, if $$7^{-1}$$ is equal to $$\large\frac{1}{7}$$, this means that $$7^{1}$$ was equal to $$\large\frac{7}{1}$$, which is also 7.

5. Jamierox4ev3r

so if $$7^{3}$$ is equal to $$\large\frac{343}{1}$$, then $$7^{-3}$$ is equal to? @cakequeen_22