It seems like there are answer choices but you forgot to post them. If you want to simplify then
2*sqrt(7) - sqrt(28) = 2*sqrt(7) - sqrt(4*7)
2*sqrt(7) - sqrt(28) = 2*sqrt(7) - sqrt(4)*sqrt(7)
2*sqrt(7) - sqrt(28) = 2*sqrt(7) - 2*sqrt(7)
2*sqrt(7) - sqrt(28) = (2-2)*sqrt(7)
2*sqrt(7) - sqrt(28) = (0)*sqrt(7)
2*sqrt(7) - sqrt(28) = 0
So the whole complicated expression simplifies to 0 (zero)
This is because sqrt(28) = 2*sqrt(7) when you simplify sqrt(28)
Side Note: "sqrt" is shorthand for "square root"
The length of the other leg of the right triangle is; 89.44 centimetres
<h3>Right triangles and the Pythagoras theorem</h3>
According to the question;
- We are required to determine the length, in centimetres of the other leg of the right triangle.
By the Pythagoras theorem;
Hence, It follows that;
Find the square root of both sides of the equation;
x = 89.44 centimeters
Read more on Pythagoras theorem;
brainly.com/question/343682
Answer:
-4 - (1-3) - (-4)² =
- 4 - (-2) - 16
-4 + 2 - 16 = -18
Step-by-step explanation:
The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
<span>1,295.01 is the correct answer</span>