A student estimated a mass to be 40 g. After carefully measuring, she found the actual mass to be 45 g. What is the percent of error? Help me plz

Step-by-step explanation:

Well percent error is calculated by the value you got divided by the actual value times 100%.

So

40/45 x 100% = 88.8888888889%

You can round this to 88.89 % or something

up

step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.