Explain how you could determine whether a calculator correctly performs the order of operations

" We can determine whether a calculator correctly performs the order of operations with the help of considering a simple example and solve it manually as well calculate the value in calculator and check whether it holds true.

If the calculator shows same value as we have calculated manually than calculator will calculate it for complex problems as well "

EXAMPLE:

We will use the PEDMAS (i.e. first solve the paranthases than solve for exponent, then for multiplication then division, then for addition and subtraction) rule to calculate our problem:

Consider our problem as:

firstly we will calculate it Manually as:

also when we will calculate it by calculator we get:

Hence, the calculator does the correct calculations.

Hence this type of calculator will be reliable.

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.