Question

Help me please fast fast fast

Answer 1

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.

$3+1=4$

Answer 2

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