Answer:
2,742.50
Step-by-step explanation:
2194 x 1.25 = 2742.50
7(x + 9 ) - x
Explanation:
the quantity x plus 9 is written x + 9 , plus meaning add.
times the quantity means multiply the quantity x + 9 multiplied by 7
this is written 7(x + 9 )
finally minus x means subtract x
putting it all 'together' we get 7(x + 9 ) - x
The solution of the logarithmic equation is approximately 5.66 .
The logarithm is a simpler way to write a exponential equation.
The exponential equation nˣ = b is written as logₙ b = x ( read as logarithm of b to the base of n is equal to x).
The various properties of logarithm are:
- log x+ log y= log x y
- log x - log y= log(x/y)
- log xⁿ=n log x
The given equation is :
log₂ x = 2.5
This equation is of the form logₐ b=n
We know that from the properties of logarithm logₐ b=n is equivalent to aⁿ=b.
So the given equation can be written as
Solving we get
x=5.6568....
or, x≈5.66
Therefore the logarithm equation has a solution for x where the value of x is approximately 5.66.
To learn more about logarithm visit:
brainly.com/question/28346542
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The mass of hydrogen atoms that measures 54 u is 89.64 x 10^-24
Analysis:
If 1 u = 1.66 x 10^-24, then 54 u = 54 x 1.66 x 10^-24 = 89.64 x 10^-24
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