5*10^5 is how many times as large as 1*10^5?

5 x 10 with an exponent of 5

5 x 100,000

500,000

1 x 10 with an exponent of 5

1 x 100,000

100,000

5 x 10 ^ 5 is 5 times as large as 1 x 10 ^5

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!