4 years ago

What is the value of x to the nearest foot? A 6713ft B 9534ft C 10443ft D 12445ft

Mathematics

1 answer:

Studentka2010 [4]4 years ago

3 0

C is my hypothesis of this question

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chubhunter [2.5K]

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4 years ago

Which expression is equal to 5^4 x 5^8 ? A: 5^12 B: 5^4 C: 5^2 D: 5^−4

galben [10]

Something to remember is how to multiply terms with same bases, but different exponents:

$a^b \cdot a^c = a^{(b+c)}$

Essentially, we add the exponents.

Using the information above, we can find our answer:

$5^4 \cdot 5^8 = 5^{(4+8)} = \boxed{5^{12}}$

Our answer is $\boxed{5^{12}}$ , or A.

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3 years ago

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Which number is written in scientific notation? 7.8 x 10−5 0.84 x 106 3.4 x 1002 −5 x 10−12

olchik [2.2K]

Hello there,

First off what is scientific notation?

Scientific Notation is the way that scientist handle very large or very small numbers..
for example, instead of writing 0.0000000056 we write 5.6x10 (exponent -9)

So, now we got that out the way lets look up here at the choices....

I would say that 7.8x10 (exponent -5) would be the answer! :)

I hoped this helped!!!! :)))

God bless you.

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3 years ago

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Elanso [62]

Answer:

i made it going by 2's as it's easier and quicker and more efficient. sorry for the messy hand writing.