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Taya2010 [7]
2 years ago
9

What is the equivalent to 178 and 739

Mathematics
2 answers:
kicyunya [14]2 years ago
6 0

The answer is 917

(Hope this helps you! :) )

Agata [3.3K]2 years ago
6 0
917 not completely sure but hope this helps :)
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Solve equation, check for extraneous solutions
fiasKO [112]

Start with

1=\dfrac{1}{n^2}+\dfrac{n^2-4n-5}{3n^2}

We observe that both fractions are not defined if n=0. So, we will assume n \neq 0.

We multiply both numerator and denominator of the first fraction by 3 and we sum the two fractions:

1=\dfrac{3}{3n^2}+\dfrac{n^2-4n-5}{3n^2} = \dfrac{n^2-4n-2}{3n^2}

We multiply both sides by 3n^2:

n^2-4n-2=3n^2

We move everything to one side and solve the quadratic equation:

2n^2+4n+2=0 \iff 2(n^2+2n+1)=0 \iff 2(n+1)^2=0 \iff n+1=0 \iff n=-1

We check the solution:

1=\dfrac{1}{1}+\dfrac{1+4-5}{3} \iff 1 = 1+0

which is true

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3 years ago
Wanda wants to buy a pair of shoes that cost $48 if sales tax is 8.25% what will be the total cost
lidiya [134]
48 x 8.25% = 3.96
Now add 3.96 + 48
Answer 51.96
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3 years ago
Write 2740 in scientific notation.
juin [17]

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Step-by-step explanation:

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Convert the angle 61 38’ 45” to decimal degrees, and round to the nearest hundredth of a degree
slega [8]
A suitable calculator* can do this easily.

61°38'45" = (61 +(38 +45/60)/60)° ≈ 61.65°

_____
I like the RealCalc app for Android, but many graphing calculators also will do this conversion. Of course, you can simply evaluate the expression as above.
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EF and GH. those are the right answers
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2 years ago
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