What's 3.2x10^5+3.8x10^5 in scientific notation

((x)(x))/(3-x) = 1.8x10^-5 how do I solve for x

1.8x10^-6

0.8x10^-3

4.8x10^5^2 divide 2.8x10^4

for what value of a will 8x10^3 be 40 times larger than a x10^2

(8x10-^7) divided by (2x10-^3)

For what value of a will 8x10^3 be larger than ax10^2?

(8.8x10^8)(4.2x10^7)=

A: 8x10^-7 B: 2x10^-9 how much larger is a than b

Find (4.8x10^6)(3.6x10^3)/(2x10^5), expressed in scientific notation. 8.64*10^4 8.64*10^6 8.64*...

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