Question

Multiply. (8×10^2)⋅(2.5×10^2) A.2×102 ​ ​ B.2×103 ​ ​ C.2×104 ​ ​ ​ D.2×105 ​ ​HELP FAST PLEASE

Answer 1

8*2.5*10^2*10^2=

=20*10^4
=2*10*10^4
=2*10^5

so D is the answer

Answer 2

Answer:

D. 2×10^5 is the correct option.

Explanation:

We have to multiply the expression

$(8\times 10^2)\cdot(2.5\times 10^2)$

We can rewrite this expression as

$(8\times 2.5 \times 10^2\times 10^2$

Let us first multiply the numbers 8 and 2.5. On multiplying 8 and 2.5, we'll get 20.

Thus, we have

$20 \times 10^2 \times 10^2$

Now, we know the exponent property $x^a \times x^b =x^{a+b}$

$20 \times 10^{2+2}$

$=20 \times 10^4$

$=2 \times 10^5$

Therefore, D is the correct option.