Is 8.6 x 10^7 written in a scientific notation? justify yor response

Yes.

Step-by-step explanation:

An example of a right scientific notation:

“a x 10^b”

1 < a < 10

Examples of wrong scientific notation:

“86 x 10^5” (adjust: 8.6 x 10^6)

“O.98 x 10^7” (adjust: 9.8 x 10^6)

You may also write, “8.6E7”.

Yes.

Step-by-step explanation:

An example of a right scientific notation:

“a x 10^b”

1 < a < 10

Examples of wrong scientific notation:

“86 x 10^5” (adjust: 8.6 x 10^6)

“O.98 x 10^7” (adjust: 9.8 x 10^6)

You may also write, “8.6E7”.

Step-by-step explanation:

it would take 7/10 of an hour too fill the pool.

step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2