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Delicious77 [7]
2 years ago
11

Help me please fast fast fast

Mathematics
2 answers:
Advocard [28]2 years ago
7 0

Answer:

4

Step-by-step explanation:

(\frac{1}{2})^2\times(3\times5-3)+1^3

This is an order of operations problem. II'll use using PEMDAS here:

  1. P: Evaluate expressions in parenthesis first
  2. E: Evaluate terms with exponents
  3. MD: Evaluate multiplication and division from left to right
  4. AS: Evaluate addition and subtraction from left to right

Parenthesis first. The first expression in parenthesis is already as simplified as it gets, so up next is the second one:

3\times5-3

There are no parenthesis and there are no exponents, so do the multiplication first.

\rightarrow 3\times5-3\\\rightarrow 15-3\\\rightarrow 12

Back to the original expression and we now have:

(\frac{1}{2})^2\times(12)+1^3

Exponents comes next:

\rightarrow (\frac{1}{2})^2=\frac{1^2}{2^2}=\frac{1}{4}\\\\\rightarrow 1^3=1

Now we have:

\frac{1}{4}\times12+1

Multiplication comes next:

\rightarrow \frac{1}{4}\times12=\frac{1}{4}\times\frac{12}{1}=\frac{12}{4}=3\\\\3+1

Finally, addition.

3+1=4

vova2212 [387]2 years ago
4 0

4

You can just put this into a calculator:

1/2^2 = 0.25

3×5-3 = 12

1^3 = 1

0.25 × 12 + 1 = 4

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