2 years ago

Evaluate (4.0x10^5)(7.0x10^7)

Mathematics

1 answer:

nikdorinn [45]2 years ago

5 0

Answer:

2.8(10^13)

Step-by-step explanation:

4.0 times 7.0 equals 28.0.

(10^5) TIMES (10^7) equals 10^12 (add the exponents 5 and 7 together)

Final answer: 28.0(10^12), or, better yet, 2.8(10^13)

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2 years ago

If A = 8! and B = 8P8, then which one of the following is true:

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Answer:

A. A = B

Step-by-step explanation:

Given

$A = 8!$

$B = ^8P_8$

Required

Which of the options is true

We start by simplifying $B = ^8P_8$

Permutation is calculated as follows

$^nP_r = \frac{n!}{(n - r)!}$

So.

$^8P_8 =\frac{8!}{(8 - 8)!}$

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