3 years ago

How can we add without a caculator

Mathematics

2 answers:

barxatty [35]3 years ago

6 0

Put your problem on paper

anastassius [24]3 years ago

3 0

By using your fingers or doing it in your head

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2 years ago

What is 2 with an exponent of negative 2 equal to?

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2 years ago

What is the exact value of x in the exponential equation 2^5x − 57 = 43?

katovenus [111]

Start by getting the term with the exponent on one side
$2^{5x}=100$

take the log of both sides
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There is a log rule that says we can bring down the exponent
$5xlog2=log100$

Solve for x
$5x= \frac{log100}{log2}$
5x=6.64

answer: x=1.33

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3 years ago